MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38b3959cf30fce3b03c31286231db4d220427e31af7e3d7458792cdb3e8b895d. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 38b3959cf30fce3b03c31286231db4d220427e31af7e3d7458792cdb3e8b895d
SHA3-384 hash: b46d7ca69f8170dd402a0164fefe7838b7f2e33ada3ff8e4de2a1c12c0232193efb530ae311d69747b82ba1806ed5f10
SHA1 hash: a985b7b7f68f86c35f429d1d57416d8de04c6a4b
MD5 hash: 26b94b8cf43e9b091e3202ee396faa33
humanhash: minnesota-aspen-quebec-quiet
File name:yeni sipariş pdf.exe
Download: download sample
Signature Formbook
File size:788'480 bytes
First seen:2022-02-25 04:43:48 UTC
Last seen:2022-02-25 07:23:36 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:eK/y6ocBZ0VvRm20gmkHz6qOxwcCMOTVpZfJ9kGP+AIAqO41LNBISuEL8reEJgmJ:9roc8RH0PkHhsPXOTTVJh+2q7LASHD
Threatray 10'476 similar samples on MalwareBazaar
TLSH T144F4BE6439EB60DEF023DAFE9DD8EDB1CD6AF53B261E31BA14420F164B49941DE02532
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence


File Origin
# of uploads :
2
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
MALICIOUS
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
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicius Schtasks From Env Var Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 578706 Sample: yeni sipari#U015f pdf.exe Startdate: 25/02/2022 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 14 other signatures 2->51 9 yeni sipari#U015f pdf.exe 7 2->9         started        13 explorer.exe 2->13         started        process3 file4 37 C:\Users\user\AppData\Roaming\OkKhgkaw.exe, PE32 9->37 dropped 39 C:\Users\...\OkKhgkaw.exe:Zone.Identifier, ASCII 9->39 dropped 41 C:\Users\user\AppData\Local\...\tmpE93F.tmp, XML 9->41 dropped 43 C:\Users\...\yeni sipari#U015f pdf.exe.log, ASCII 9->43 dropped 55 Adds a directory exclusion to Windows Defender 9->55 15 RegSvcs.exe 9->15         started        18 powershell.exe 25 9->18         started        20 schtasks.exe 1 9->20         started        signatures5 process6 signatures7 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 2 other signatures 15->63 22 colorcpl.exe 15->22         started        25 explorer.exe 1 150 15->25         started        27 explorer.exe 15->27 injected 29 conhost.exe 18->29         started        31 conhost.exe 20->31         started        process8 signatures9 53 Tries to detect virtualization through RDTSC time measurements 22->53 33 cmd.exe 22->33         started        process10 process11 35 conhost.exe 33->35         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-02-24 09:44:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:g2m3 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
f1cccd3402ca088ef94fde5ab4d5bdc39f0a66b203217be0ca03babeb71bf72a
MD5 hash:
001145b7a95e05375064f8807c622269
SHA1 hash:
ec78be4033237773bf4e01d5a098b8c36ba0215a
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
SH256 hash:
ed02c804fa56fc065eadf2c1f6e53dd2583b3bfc66eae69eb23e93990ef62349
MD5 hash:
ece0d9cd370d28512e0749700a0abc26
SHA1 hash:
2dd929063884acef1a5d55b2632bfde8f0f4b903
SH256 hash:
38b3959cf30fce3b03c31286231db4d220427e31af7e3d7458792cdb3e8b895d
MD5 hash:
26b94b8cf43e9b091e3202ee396faa33
SHA1 hash:
a985b7b7f68f86c35f429d1d57416d8de04c6a4b
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.

Malspam

Formbook

Executable exe 38b3959cf30fce3b03c31286231db4d220427e31af7e3d7458792cdb3e8b895d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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