MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c6e630e2b923d9961d01d662f8ea7455f29549515ef1fee8b99b0aa1da43858. 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: 17


Intelligence 17 IOCs YARA File information Comments

SHA256 hash: 8c6e630e2b923d9961d01d662f8ea7455f29549515ef1fee8b99b0aa1da43858
SHA3-384 hash: e60714fb520abf91364dae66dd4e735750c0de4652045c1f3ecb587097f98c97aab2b27ca44cfada8274899347cdec3b
SHA1 hash: 43684ad8d9814538b5c03c54ffb100827d956364
MD5 hash: 4616ecc0840e1b52698e32749eebe56f
humanhash: montana-michigan-romeo-speaker
File name:PO copy.pdf.exe
Download: download sample
Signature Formbook
File size:245'837 bytes
First seen:2022-04-07 01:56:14 UTC
Last seen:2022-04-07 05:54:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmOp1Bra5UcChrCKQIkWI1AoLl5miBGZfxly1aKxj:HNlORncCheVXWOAoJfUplywWj
Threatray 14'695 similar samples on MalwareBazaar
TLSH T193341248A7AAD56BD6635234047FAB7A2FF871092565E70F43208FBC3E217C1251EB93
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
329
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
PO copy.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-04-07 01:59:07 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe overlay packed python shell32.dll virus
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
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
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 virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 604478 Sample: PO copy.pdf.exe Startdate: 07/04/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 7 other signatures 2->53 11 PO copy.pdf.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\ckgdiymgu.exe, PE32 11->31 dropped 14 ckgdiymgu.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 69 Injects a PE file into a foreign processes 14->69 17 ckgdiymgu.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 vanquishing-venture.com 192.249.120.141, 49789, 80 IMH-WESTUS United States 20->33 35 www.alexisbyter.com 85.208.118.103, 49843, 80 ENZUINC-US France 20->35 37 2 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 colorcpl.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2022-04-07 01:57:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sf31 rat spyware stealer suricata trojan
Behaviour
Modifies data under HKEY_USERS
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
suricata: ET MALWARE FormBook CnC Checkin (GET)
Formbook
Unpacked files
SH256 hash:
f03a5ae0425003c856c6d027c6ab0291c11de5c735d996110679558eccadd3a0
MD5 hash:
e18757c9d93c444526a6616b84a00d34
SHA1 hash:
29ef7ef51a3f35a13804efeffe877b3ad0071a75
SH256 hash:
f2eb323951b9b383cd21c1d9dab65ae8f330fbab5bb3f13db0d8ae6e6bda3edb
MD5 hash:
5aacb4ad4bd97a3019ac62e6d69d3c3d
SHA1 hash:
598df42280a9a4709c875f007ad9e26fc84c440c
SH256 hash:
8c6e630e2b923d9961d01d662f8ea7455f29549515ef1fee8b99b0aa1da43858
MD5 hash:
4616ecc0840e1b52698e32749eebe56f
SHA1 hash:
43684ad8d9814538b5c03c54ffb100827d956364
Malware family:
FormBook
Verdict:
Malicious
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 8c6e630e2b923d9961d01d662f8ea7455f29549515ef1fee8b99b0aa1da43858

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments