MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a9ea87530211de1888f458beeb1439ec2fc521aa1e7677a64f1f7d4d780bdfa. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: 7a9ea87530211de1888f458beeb1439ec2fc521aa1e7677a64f1f7d4d780bdfa
SHA3-384 hash: 6d3706078eb49c30e6a5e0c7eda174aa7262d64c356ee9c3a72dcaba5c6930af73e70fa16f11cef1fceb44597a99488b
SHA1 hash: 1bf45c3985f777c23c23a10fc70d85842604f47f
MD5 hash: 02452243bb9213c3c3362a79baddb5ed
humanhash: steak-football-crazy-oranges
File name:SecuriteInfo.com.W32.AIDetectNet.01.19119.17263
Download: download sample
Signature Formbook
File size:18'432 bytes
First seen:2022-07-29 00:38:03 UTC
Last seen:2022-07-29 01:34:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 384:3QLuo004R78QWFmrljaCXRYiLJmSIISSSSSISSSpvKACPOY:KH0Z8ZFgvBSVCGY
Threatray 229 similar samples on MalwareBazaar
TLSH T1B782D7CB53F28A27FAA5D33C482A25075F35D8ACB8A5B65B35C111CEB817B405BDC718
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 0096cc714d86aa00 (18 x RemcosRAT, 14 x Formbook, 7 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 675304 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 29/07/2022 Architecture: WINDOWS Score: 100 66 Multi AV Scanner detection for domain / URL 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 6 other signatures 2->72 10 SecuriteInfo.com.W32.AIDetectNet.01.19119.exe 16 7 2->10         started        process3 dnsIp4 58 23.95.106.35, 49739, 49780, 49784 AS-COLOCROSSINGUS United States 10->58 52 C:\Users\user\AppData\...\Hstylfgla.exe, PE32 10->52 dropped 54 C:\Users\...\Hstylfgla.exe:Zone.Identifier, ASCII 10->54 dropped 56 SecuriteInfo.com.W...et.01.19119.exe.log, ASCII 10->56 dropped 90 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 10->90 92 Encrypted powershell cmdline option found 10->92 94 Writes to foreign memory regions 10->94 96 3 other signatures 10->96 15 InstallUtil.exe 10->15         started        18 powershell.exe 14 10->18         started        file5 signatures6 process7 signatures8 98 Modifies the context of a thread in another process (thread injection) 15->98 100 Maps a DLL or memory area into another process 15->100 102 Tries to detect virtualization through RDTSC time measurements 15->102 104 Queues an APC in another process (thread injection) 15->104 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        process9 process10 24 Hstylfgla.exe 14 4 20->24         started        27 Hstylfgla.exe 3 20->27         started        29 help.exe 20->29         started        31 3 other processes 20->31 signatures11 74 Multi AV Scanner detection for dropped file 24->74 76 Machine Learning detection for dropped file 24->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 24->78 80 Injects a PE file into a foreign processes 24->80 33 InstallUtil.exe 24->33         started        36 powershell.exe 24->36         started        38 InstallUtil.exe 24->38         started        82 Encrypted powershell cmdline option found 27->82 84 Writes to foreign memory regions 27->84 86 Allocates memory in foreign processes 27->86 40 InstallUtil.exe 27->40         started        42 powershell.exe 27->42         started        88 Tries to detect virtualization through RDTSC time measurements 29->88 44 cmd.exe 29->44         started        process12 signatures13 60 Modifies the context of a thread in another process (thread injection) 33->60 62 Maps a DLL or memory area into another process 33->62 64 Sample uses process hollowing technique 33->64 46 conhost.exe 36->46         started        48 conhost.exe 42->48         started        50 conhost.exe 44->50         started        process14
Threat name:
Win32.Downloader.PsDownload
Status:
Malicious
First seen:
2022-07-28 22:47:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 40 (52.50%)
Threat level:
  3/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:g2i8 persistence rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
7a9ea87530211de1888f458beeb1439ec2fc521aa1e7677a64f1f7d4d780bdfa
MD5 hash:
02452243bb9213c3c3362a79baddb5ed
SHA1 hash:
1bf45c3985f777c23c23a10fc70d85842604f47f
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 7a9ea87530211de1888f458beeb1439ec2fc521aa1e7677a64f1f7d4d780bdfa

(this sample)

  
Delivery method
Distributed via web download

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