MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 181e65619bf47a1d05421f80fad3639181978c5779c86c135b0342871d8a6428. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments

SHA256 hash: 181e65619bf47a1d05421f80fad3639181978c5779c86c135b0342871d8a6428
SHA3-384 hash: 6cc2f35563ad4171ac899a8b35261a977225b3a5c31fb7456c7028d43f5bc7d0d3a7a5c1533c53d86f1e37f8b0ce89e5
SHA1 hash: 5d46743b5f408daebf1cf3583e17f421c6bac121
MD5 hash: b33b6f75fe4f3427609d4a828447b4fa
humanhash: artist-alaska-alaska-fish
File name:181e65619bf47a1d05421f80fad3639181978c5779c86c135b0342871d8a6428
Download: download sample
Signature Formbook
File size:340'992 bytes
First seen:2020-11-13 16:04:48 UTC
Last seen:2024-07-24 11:40:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fa3a99b038d1b19672af6b92afe86d67 (8 x Formbook)
ssdeep 6144:WQaN3uzFn5EoS0ZQFL7zXbPvbTT4nhnne4VX2pClCmgBaGYArphY3:WQaOna734hnvgpfmhGvq
Threatray 2'921 similar samples on MalwareBazaar
TLSH 1874F12979D1C073D4B7003A0564DFA1AA3DF8723FA1AC8F674827399E306D2D629D67
Reporter seifreed
Tags:FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Launching the process to change network settings
Launching cmd.exe command interpreter
Launching a process
Setting browser functions hooks
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
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
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 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
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 316409 Sample: hRVrTsMv25 Startdate: 14/11/2020 Architecture: WINDOWS Score: 100 32 www.skinnerttc.com 2->32 34 skinnerttc.com 2->34 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 3 other signatures 2->48 11 hRVrTsMv25.exe 1 2->11         started        signatures3 process4 signatures5 58 Tries to detect virtualization through RDTSC time measurements 11->58 60 Injects a PE file into a foreign processes 11->60 14 hRVrTsMv25.exe 11->14         started        17 conhost.exe 11->17         started        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 19 explorer.exe 14->19 injected process8 dnsIp9 36 www.fwk.xyz 91.195.241.136, 49743, 80 SEDO-ASDE Germany 19->36 38 affiliateclubindia.com 34.102.136.180, 49747, 49748, 80 GOOGLEUS United States 19->38 40 3 other IPs or domains 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 23 cmmon32.exe 19->23         started        26 msdt.exe 19->26         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 28 cmd.exe 1 23->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
Win32.Spyware.Stelega
Status:
Malicious
First seen:
2020-11-13 16:17:16 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Unpacked files
SH256 hash:
181e65619bf47a1d05421f80fad3639181978c5779c86c135b0342871d8a6428
MD5 hash:
b33b6f75fe4f3427609d4a828447b4fa
SHA1 hash:
5d46743b5f408daebf1cf3583e17f421c6bac121
SH256 hash:
e4c747f42ebacae5e28dfffe1504e34690237a5ca5d3817f3d29bb1bc606c344
MD5 hash:
fbf0c8d5a4b92efb1a985b7338e76449
SHA1 hash:
16a524b0fc7b269f08652bb4c8e0c67140f482ac
Detections:
win_formbook_g0 win_formbook_auto
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:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Author:Slavo Greminger, SWITCH-CERT

File information


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

  
Delivery method
Other

Comments