MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 336a2648e0811ebd11a94bb59c5cd5ea06ff48485f734ce149a3f9f9a7e0c7f4. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: 336a2648e0811ebd11a94bb59c5cd5ea06ff48485f734ce149a3f9f9a7e0c7f4
SHA3-384 hash: ec2256bd08b0e5b912e2c28e72f01832bf181a6b13d144dd4ab1653a919f531e0ae1d1c9868f41247e57e92afd0a2750
SHA1 hash: b4c9eb0cc26a50743d51ee56ea7639a64f43dafa
MD5 hash: b16bb2a4fe3ee1b986926530169eeb44
humanhash: william-river-leopard-north
File name:Unbezahlte Rechnungszahlungen.exe
Download: download sample
Signature Formbook
File size:259'000 bytes
First seen:2021-10-12 19:50:11 UTC
Last seen:2021-10-12 20:48:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:wBlL/cbqbPtCEx551/DXhD22qittuP9cg3LNR5gL:CebqbPtNhVDRDyxa
Threatray 10'370 similar samples on MalwareBazaar
TLSH T1334412E671E2ECA3C4C397B072DA5398C772F519201845A76F851FF0BA2E3DAD129247
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 :
2
# of downloads :
402
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Unbezahlte Rechnungszahlungen.exe
Verdict:
Malicious activity
Analysis date:
2021-10-12 19:55:04 UTC
Tags:
trojan formbook stealer

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay 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
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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
Self deletion via cmd delete
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
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 501440 Sample: Unbezahlte Rechnungszahlungen.exe Startdate: 12/10/2021 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 9 other signatures 2->40 10 Unbezahlte Rechnungszahlungen.exe 17 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\pibyjvpg.dll, PE32 10->28 dropped 52 Injects a PE file into a foreign processes 10->52 14 Unbezahlte Rechnungszahlungen.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.ironcageclash.com 156.232.237.100, 49816, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 17->30 32 www.mased-world.online 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 wlanext.exe 17->21         started        signatures10 process11 signatures12 44 Self deletion via cmd delete 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-10-12 08:57:37 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dn7r rat spyware stealer trojan
Behaviour
Gathers network information
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yourherogarden.net/dn7r/
Unpacked files
SH256 hash:
336a2648e0811ebd11a94bb59c5cd5ea06ff48485f734ce149a3f9f9a7e0c7f4
MD5 hash:
b16bb2a4fe3ee1b986926530169eeb44
SHA1 hash:
b4c9eb0cc26a50743d51ee56ea7639a64f43dafa
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information


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

Malspam

Formbook

Executable exe 336a2648e0811ebd11a94bb59c5cd5ea06ff48485f734ce149a3f9f9a7e0c7f4

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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