Windows
Analysis Report
ebu.ps1
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected FormBook
Allocates memory in foreign processes
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
PE file contains section with special chars
PE file has nameless sections
Performs DNS queries to domains with low reputation
Powershell drops PE file
Queues an APC in another process (thread injection)
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE file contains sections with non-standard names
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Change PowerShell Policies to an Insecure Level
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
powershell.exe (PID: 6624 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -noLogo -E xecutionPo licy unres tricted -f ile "C:\Us ers\user\D esktop\ebu .ps1" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) conhost.exe (PID: 6652 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) x.exe (PID: 6988 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\x.exe" MD5: 36AB0A4F064DF0D6A1D681FFAC61FC2E) CasPol.exe (PID: 2080 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\cas pol.exe" MD5: 914F728C04D3EDDD5FBA59420E74E56B) SrZjbK9j4QXGHBZ.exe (PID: 888 cmdline:
"C:\Progra m Files (x 86)\RxwSdy GqeltXeoYz hpIHTizrhy ytYVYTkxsV CiTaHxOK\f fFGp3Q2.ex e" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) ROUTE.EXE (PID: 7128 cmdline:
"C:\Window s\SysWOW64 \ROUTE.EXE " MD5: C563191ED28A926BCFDB1071374575F1) SrZjbK9j4QXGHBZ.exe (PID: 5820 cmdline:
"C:\Progra m Files (x 86)\RxwSdy GqeltXeoYz hpIHTizrhy ytYVYTkxsV CiTaHxOK\R mSTJrc28lA L.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) firefox.exe (PID: 6996 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
notepad.exe (PID: 7072 cmdline:
"C:\Window s\System32 \notepad.e xe" "C:\Us ers\user\D esktop\ebu .ps1" MD5: 27F71B12CB585541885A31BE22F61C83)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 4 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security |
System Summary |
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Source: | Author: frack113: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
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2025-02-14T12:22:11.109468+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49820 | 144.76.229.203 | 80 | TCP |
2025-02-14T12:22:14.059970+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49836 | 144.76.229.203 | 80 | TCP |
2025-02-14T12:22:16.679771+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49854 | 144.76.229.203 | 80 | TCP |
2025-02-14T12:22:25.264361+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49908 | 172.67.207.50 | 80 | TCP |
2025-02-14T12:22:27.814946+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49926 | 172.67.207.50 | 80 | TCP |
2025-02-14T12:22:30.386332+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 49942 | 172.67.207.50 | 80 | TCP |
2025-02-14T12:22:38.678090+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50001 | 66.29.133.199 | 80 | TCP |
2025-02-14T12:22:41.198033+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50014 | 66.29.133.199 | 80 | TCP |
2025-02-14T12:22:43.862501+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50015 | 66.29.133.199 | 80 | TCP |
2025-02-14T12:22:51.825557+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50017 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:22:54.369882+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50018 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:22:56.976159+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50019 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:23:05.233183+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50021 | 199.59.243.228 | 80 | TCP |
2025-02-14T12:23:07.819216+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50022 | 199.59.243.228 | 80 | TCP |
2025-02-14T12:23:10.357549+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50023 | 199.59.243.228 | 80 | TCP |
2025-02-14T12:23:19.077457+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50025 | 104.21.16.1 | 80 | TCP |
2025-02-14T12:23:21.770304+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50026 | 104.21.16.1 | 80 | TCP |
2025-02-14T12:23:24.421574+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50027 | 104.21.16.1 | 80 | TCP |
2025-02-14T12:23:33.337847+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50029 | 156.224.244.124 | 80 | TCP |
2025-02-14T12:23:35.910568+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50030 | 156.224.244.124 | 80 | TCP |
2025-02-14T12:23:38.529672+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50031 | 156.224.244.124 | 80 | TCP |
2025-02-14T12:23:46.755400+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50033 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:23:49.323593+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50034 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:23:51.869513+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50035 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:03.122659+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50037 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:05.648851+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50038 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:09.260239+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50039 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:16.485107+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50041 | 185.173.109.83 | 80 | TCP |
2025-02-14T12:24:19.104736+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50042 | 185.173.109.83 | 80 | TCP |
2025-02-14T12:24:21.721167+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50043 | 185.173.109.83 | 80 | TCP |
2025-02-14T12:24:29.990220+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50045 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:32.526412+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50046 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:35.256432+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50047 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:43.665957+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50049 | 103.106.67.112 | 80 | TCP |
2025-02-14T12:24:46.237650+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50050 | 103.106.67.112 | 80 | TCP |
2025-02-14T12:24:48.784214+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50051 | 103.106.67.112 | 80 | TCP |
2025-02-14T12:24:56.865133+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50053 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:24:59.396471+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50054 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:25:01.955259+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50055 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:25:13.144586+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50057 | 66.235.200.146 | 80 | TCP |
2025-02-14T12:25:15.690965+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50058 | 66.235.200.146 | 80 | TCP |
2025-02-14T12:25:18.310412+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50059 | 66.235.200.146 | 80 | TCP |
2025-02-14T12:25:26.771851+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50061 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:25:30.372671+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50062 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:25:31.863804+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50063 | 13.248.169.48 | 80 | TCP |
2025-02-14T12:25:49.725698+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50066 | 144.76.229.203 | 80 | TCP |
2025-02-14T12:25:52.253146+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.4 | 50067 | 144.76.229.203 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
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Source: | Code function: | 10_2_026FC670 |
Source: | Code function: | 10_2_026E9E30 | |
Source: | Code function: | 10_2_02D104DE |
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