MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f416b983ef4ccaad4279bfbf52094adc47774560b191944eadb7d07914ff6324. 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 3 File information Comments

SHA256 hash: f416b983ef4ccaad4279bfbf52094adc47774560b191944eadb7d07914ff6324
SHA3-384 hash: c4ab740c63c0f7e31ff450d019a8c4060f81139b0f2450ad21642a8421945e10889427901ac0f40276cb6db53ae85424
SHA1 hash: 731c1169d98fd5153cf4861711eb70d01cb5fb37
MD5 hash: 65c1af2ccfeee9aae94ca386bfaeba47
humanhash: burger-winner-violet-carbon
File name:Purchase#Order#39449.pdf.exe
Download: download sample
Signature Formbook
File size:661'504 bytes
First seen:2021-11-12 03:36:29 UTC
Last seen:2021-11-12 04:34:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:uhwkr1HkLt1pU0XCCrszPMoR2/4uLt1e7oKXnz61QIb:gyt7SCrsQoR2Ttoz
Threatray 11'213 similar samples on MalwareBazaar
TLSH T192E4E09AB565C921D4290A36CCDF89D407EABD12FE13EA1B3985736D2B333E3181518F
File icon (PE):PE icon
dhash icon 90ba7181e46588f0 (31 x AgentTesla, 11 x Formbook, 9 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
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
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 520355 Sample: Purchase#Order#39449.pdf.exe Startdate: 12/11/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 9 other signatures 2->52 9 Purchase#Order#39449.pdf.exe 3 2->9         started        process3 file4 26 C:\Users\...\Purchase#Order#39449.pdf.exe.log, ASCII 9->26 dropped 54 Tries to detect virtualization through RDTSC time measurements 9->54 56 Injects a PE file into a foreign processes 9->56 13 Purchase#Order#39449.pdf.exe 9->13         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 13->58 60 Maps a DLL or memory area into another process 13->60 62 Sample uses process hollowing technique 13->62 64 Queues an APC in another process (thread injection) 13->64 16 colorcpl.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 34 Self deletion via cmd delete 16->34 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Tries to detect virtualization through RDTSC time measurements 16->40 22 cmd.exe 1 16->22         started        28 sachisushimontreal.com 217.21.76.175, 49794, 80 IPPLANET-ASIL United Kingdom 19->28 30 www.066ss.xyz 154.22.124.72, 49820, 80 COGENT-174US United States 19->30 32 2 other IPs or domains 19->32 42 System process connects to network (likely due to code injection or exploit) 19->42 44 Performs DNS queries to domains with low reputation 19->44 signatures10 process11 process12 24 conhost.exe 22->24         started       
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Status:
Malicious
First seen:
2021-11-12 00:46:54 UTC
AV detection:
8 of 44 (18.18%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:gr1c rat spyware stealer trojan
Behaviour
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.illusiontrick.com/gr1c/
Unpacked files
SH256 hash:
b583aa2135bbfa9f4a49d9ebc6980b45d9c4ae0c0b9586da9552cabd9e05a781
MD5 hash:
436bc28ad15f8e6c534d532d71d1abbe
SHA1 hash:
c249c37efeea1356cd38ad992e3930e8b6e18433
SH256 hash:
bd4c4912209802bb457983177d94b220d20dc9775ff973f90bd1c6afd729bc9c
MD5 hash:
8cde05c2cc918a68b075bdb2854c9994
SHA1 hash:
bc3c4e2826370171102ee8b7bd317493cd72c15f
SH256 hash:
f416b983ef4ccaad4279bfbf52094adc47774560b191944eadb7d07914ff6324
MD5 hash:
65c1af2ccfeee9aae94ca386bfaeba47
SHA1 hash:
731c1169d98fd5153cf4861711eb70d01cb5fb37
Malware family:
FormBook
Verdict:
Malicious
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: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 f416b983ef4ccaad4279bfbf52094adc47774560b191944eadb7d07914ff6324

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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