MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3cc97e74a5fe7f0cea8e82512a8923a4dc1bb1afe702bb53876136b5362fbfe3. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 3cc97e74a5fe7f0cea8e82512a8923a4dc1bb1afe702bb53876136b5362fbfe3
SHA3-384 hash: eacd3a380cf5257cb44ea30d8fd244b6a7c31c45dcb5323eb2010d18d01bd3ff24c0a0b1b7e468e533046ae4c3cdf36b
SHA1 hash: a2e1b6d45881ba19e977e3f096a9a08a50f1aaf2
MD5 hash: 75f07a08beea06b2f54754860db47a11
humanhash: sweet-moon-steak-cardinal
File name:llkir43123.exe
Download: download sample
Signature Formbook
File size:313'688 bytes
First seen:2021-10-06 12:38:34 UTC
Last seen:2021-10-06 13:48:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsOjBBpg7uvpLougnop/FbZplrReL/ka0Ok85iPYWRwTBMISkIk2:/OjBBCyvpL5g2/VjlrQ4/VlzwFJ2
Threatray 10'077 similar samples on MalwareBazaar
TLSH T10D6413B275C398BAC5E31FF065ADEAB5B27BC44A5103159387286FB93E735C78B84042
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
llkir43123.exe
Verdict:
Malicious activity
Analysis date:
2021-10-06 12:41:45 UTC
Tags:
trojan formbook stealer

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

Behaviour
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Reading critical registry keys
Creating a window
DNS request
Connection attempt
Sending an HTTP GET request
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
overlay packed
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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: 498008 Sample: llkir43123.exe Startdate: 06/10/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 7 other signatures 2->44 10 llkir43123.exe 17 2->10         started        process3 file4 30 C:\Users\user\AppData\Local\Temp\...\mscl.dll, PE32 10->30 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 llkir43123.exe 10->14         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 14->17 injected process8 dnsIp9 32 marcastudios.com 50.87.253.62, 49859, 80 UNIFIEDLAYER-AS-1US United States 17->32 34 www.theartofsoulwork.com 17->34 36 4 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 21 cmstp.exe 17->21         started        24 autoconv.exe 17->24         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Threat name:
Win32.Trojan.Sabsik
Status:
Malicious
First seen:
2021-10-06 12:39:05 UTC
AV detection:
12 of 28 (42.86%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:rv9n rat spyware stealer suricata trojan
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.cjspizza.net/rv9n/
Unpacked files
SH256 hash:
3cc97e74a5fe7f0cea8e82512a8923a4dc1bb1afe702bb53876136b5362fbfe3
MD5 hash:
75f07a08beea06b2f54754860db47a11
SHA1 hash:
a2e1b6d45881ba19e977e3f096a9a08a50f1aaf2
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

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