Joe Sandbox Cloud Basic Analysis Report

Loading Joe Sandbox Report ...

Edit tour

Windows Analysis Report
fooYgfbxno

Overview

General Information

Sample Name:fooYgfbxno (renamed file extension from none to exe)
Analysis ID:626604
MD5:ce42fe431b88922ab59b6fd880cadcf6
SHA1:652914d960da1d37d270db7f6e3b07c9d4b0e3a9
SHA256:4d8cc87942499042195cec4fdb2fc5869d4bf98a1d827fd30fb74e82cf0fdc0f
Tags:32exetrojan
Infos:

Detection

FormBook
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Snort IDS alert for network traffic
Sample uses process hollowing technique
Maps a DLL or memory area into another process
Writes to foreign memory regions
Machine Learning detection for sample
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Sample file is different than original file name gathered from version info
Contains functionality to read the PEB
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

Process Tree

  • System is w10x64
  • fooYgfbxno.exe (PID: 6212 cmdline: "C:\Users\user\Desktop\fooYgfbxno.exe" MD5: CE42FE431B88922AB59B6FD880CADCF6)
    • aspnet_compiler.exe (PID: 6324 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe MD5: 17CC69238395DF61AAF483BCEF02E7C9)
      • explorer.exe (PID: 3968 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
      • svchost.exe (PID: 1988 cmdline: C:\Windows\SysWOW64\svchost.exe MD5: FA6C268A5B5BDA067A901764D203D433)
        • cmd.exe (PID: 5064 cmdline: /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe" MD5: F3BDBE3BB6F734E357235F4D5898582D)
          • conhost.exe (PID: 4804 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cleanup

Malware Configuration

Threatname: FormBook

{"C2 list": ["www.mentalnayaarifmetika.online/ocgr/"], "decoy": ["shiftmedicalstaffing.agency", "muktobangla.xyz", "attmleather.com", "modelahs.com", "clime.email", "yonatec.com", "mftie.com", "doxofcolor.com", "american-atlantic.net", "christineenergy.com", "fjqsdz.com", "nagpurmandarin.com", "hofwimmer.com", "gororidev.com", "china-eros.com", "xn--ekrt15fxyb2t2c.xn--czru2d", "dabsavy.com", "buggy4t.com", "souplant.com", "insurancewineappraisals.com", "012skz.xyz", "kincsemto.net", "zyaxious.website", "tellgalpy.com", "demetbatmaz.com", "wallacehills.com", "chambaultfleurs.com", "fairfieldgroupfw.com", "lotsimprovements.com", "dhslcy.com", "anotherdegen.com", "dearpennyyouradviceblogspot.com", "seekbeforefind.com", "societyalluredmcc.com", "climatecheckin.com", "candybox-eru.com", "tentacionescharlie.com", "exceedrigging.online", "skb-cabinet.com", "qhzhuhang.com", "ccav11.xyz", "sandstonehosting.com", "14offresimportantes.com", "xn--hj2bz6fwvan2be1g5tb.com", "embedded-electronic.com", "drsanaclinic.com", "ageofcryptos.com", "dreamonetnpasumo1.xyz", "engroconnect.net", "huvao.com", "denalicanninglids.com", "tootko.com", "edisson-bd.com", "myamazonloan.net", "dbcyebnveoyu.cloud", "floridacaterpillar.com", "travisjbogard.com", "dialoneconstruction.com", "tubesing.com", "gofilmwizards.com", "tahnforest.com", "salahov.info", "bimcellerviss.com", "garglimited.com"]}

Yara Signatures

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000002.00000002.359226665.0000000001440000.00000040.10000000.00040000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
    00000002.00000002.359226665.0000000001440000.00000040.10000000.00040000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
    • 0x8608:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x8992:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x146a5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
    • 0x14191:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
    • 0x147a7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
    • 0x1491f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
    • 0x93aa:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
    • 0x1340c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
    • 0xa122:$sequence_7: 66 89 0C 02 5B 8B E5 5D
    • 0x19b97:$sequence_8: 3C 54 74 04 3C 74 75 F4
    • 0x1ac3a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
    00000002.00000002.359226665.0000000001440000.00000040.10000000.00040000.00000000.sdmpFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
    • 0x16ac9:$sqlite3step: 68 34 1C 7B E1
    • 0x16bdc:$sqlite3step: 68 34 1C 7B E1
    • 0x16af8:$sqlite3text: 68 38 2A 90 C5
    • 0x16c1d:$sqlite3text: 68 38 2A 90 C5
    • 0x16b0b:$sqlite3blob: 68 53 D8 7F 8C
    • 0x16c33:$sqlite3blob: 68 53 D8 7F 8C
    00000002.00000002.359013651.0000000000400000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
      00000002.00000002.359013651.0000000000400000.00000040.00000400.00020000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
      • 0x8608:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
      • 0x8992:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
      • 0x146a5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
      • 0x14191:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
      • 0x147a7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
      • 0x1491f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
      • 0x93aa:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
      • 0x1340c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
      • 0xa122:$sequence_7: 66 89 0C 02 5B 8B E5 5D
      • 0x19b97:$sequence_8: 3C 54 74 04 3C 74 75 F4
      • 0x1ac3a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
      Click to see the 28 entries

      Unpacked PEs

      SourceRuleDescriptionAuthorStrings
      2.0.aspnet_compiler.exe.400000.0.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
        2.0.aspnet_compiler.exe.400000.0.unpackFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
        • 0x7808:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
        • 0x7b92:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
        • 0x138a5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
        • 0x13391:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
        • 0x139a7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
        • 0x13b1f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
        • 0x85aa:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
        • 0x1260c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
        • 0x9322:$sequence_7: 66 89 0C 02 5B 8B E5 5D
        • 0x18d97:$sequence_8: 3C 54 74 04 3C 74 75 F4
        • 0x19e3a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
        2.0.aspnet_compiler.exe.400000.0.unpackFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
        • 0x15cc9:$sqlite3step: 68 34 1C 7B E1
        • 0x15ddc:$sqlite3step: 68 34 1C 7B E1
        • 0x15cf8:$sqlite3text: 68 38 2A 90 C5
        • 0x15e1d:$sqlite3text: 68 38 2A 90 C5
        • 0x15d0b:$sqlite3blob: 68 53 D8 7F 8C
        • 0x15e33:$sqlite3blob: 68 53 D8 7F 8C
        2.2.aspnet_compiler.exe.400000.0.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
          2.2.aspnet_compiler.exe.400000.0.unpackFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
          • 0x7808:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
          • 0x7b92:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
          • 0x138a5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
          • 0x13391:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
          • 0x139a7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
          • 0x13b1f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
          • 0x85aa:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
          • 0x1260c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
          • 0x9322:$sequence_7: 66 89 0C 02 5B 8B E5 5D
          • 0x18d97:$sequence_8: 3C 54 74 04 3C 74 75 F4
          • 0x19e3a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00