MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22366b7c6e51e58b855a91cc558885c438a34deaa588af13e0601586686e18f3. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 22366b7c6e51e58b855a91cc558885c438a34deaa588af13e0601586686e18f3
SHA3-384 hash: 9a575c303451fa13f4be372a4e863790eb7d8ad616aa1419d9dee71570a05b98979dbb01b3bb1fde5c931c68d646936e
SHA1 hash: f86577d9cb466ee19f6300bc6d7d03bb54c7dbd9
MD5 hash: 8d37edf39c5ec13ed51cd67cb1fcaf84
humanhash: gee-california-pasta-zebra
File name:yGM85NEI1QLBt87.exe
Download: download sample
Signature FormBook
File size:661'504 bytes
First seen:2020-08-27 05:23:20 UTC
Last seen:2020-08-27 06:18:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:iiqhs9Hc0QoqXRADr0lW156Kom72eSPR8NhA3T3sBWC4:EW9ZqBMr0lpKom5SPWSb
Threatray 2'224 similar samples on MalwareBazaar
TLSH 05E4AF9D3638769EC49B8DF799DC2C64A6106C76431FD203B47332A8597DA9BCE103E2
Reporter abuse_ch
Tags:exe FormBook Yahoo


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: sonic305-19.consmr.mail.gq1.yahoo.com
Sending IP: 98.137.64.82
From: john sales <sale_john1@yahoo.com>
Subject: : Fwd: Wire Transfer Payment
Attachment: GM85NEI PDF.rar (contains "yGM85NEI1QLBt87.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected FormBook malware
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278473 Sample: yGM85NEI1QLBt87.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 10 other signatures 2->55 8 yGM85NEI1QLBt87.exe 7 2->8         started        process3 file4 31 C:\Users\user\AppData\Roaming\Sonlva.exe, PE32 8->31 dropped 33 C:\Users\user\...\Sonlva.exe:Zone.Identifier, ASCII 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmpB11C.tmp, XML 8->35 dropped 37 C:\Users\user\...\yGM85NEI1QLBt87.exe.log, ASCII 8->37 dropped 59 Tries to detect virtualization through RDTSC time measurements 8->59 61 Injects a PE file into a foreign processes 8->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->63 12 yGM85NEI1QLBt87.exe 8->12         started        15 schtasks.exe 1 8->15         started        17 yGM85NEI1QLBt87.exe 8->17         started        19 yGM85NEI1QLBt87.exe 8->19         started        signatures5 process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 12->65 67 Maps a DLL or memory area into another process 12->67 69 Sample uses process hollowing technique 12->69 71 Queues an APC in another process (thread injection) 12->71 21 explorer.exe 12->21 injected 25 conhost.exe 15->25         started        process8 dnsIp9 43 www.roulettejack.com 185.53.177.11, 49737, 49738, 49739 TEAMINTERNET-ASDE Germany 21->43 45 kristinamg.com 35.208.137.4, 49734, 49735, 49736 GOOGLE-2US United States 21->45 47 2 other IPs or domains 21->47 57 System process connects to network (likely due to code injection or exploit) 21->57 27 ipconfig.exe 17 21->27         started        signatures10 process11 file12 39 C:\Users\user\AppData\...\LP1logrv.ini, data 27->39 dropped 41 C:\Users\user\AppData\...\LP1logri.ini, data 27->41 dropped 73 Detected FormBook malware 27->73 75 Tries to steal Mail credentials (via file access) 27->75 77 Tries to harvest and steal browser information (history, passwords, etc) 27->77 79 3 other signatures 27->79 signatures13
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-27 05:25:07 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mentork.info/k8b/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

FormBook

Executable exe 22366b7c6e51e58b855a91cc558885c438a34deaa588af13e0601586686e18f3

(this sample)

  
Delivery method
Distributed via e-mail attachment

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