MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4abecbd1a56abc36103d0595086bfd31c50f33236b9431b53860e5c1e20c2a7. 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
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SHA256 hash: f4abecbd1a56abc36103d0595086bfd31c50f33236b9431b53860e5c1e20c2a7
SHA3-384 hash: 7dabb62da624f1b396383863fccdaccfb36f50f01f730e844b3f491baaca17afb6160dc44f361135e3f5dbb650993e27
SHA1 hash: 4be2064313b2f72e472b8a81797e7b14a5b3aec8
MD5 hash: b3104364708fa64e5242cbe54885ec56
humanhash: colorado-fruit-harry-tennis
File name:b123.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:232'574 bytes
First seen:2021-08-24 14:22:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 439ff53323e9506db8654c0d8af9cf37 (5 x Formbook, 4 x NanoCore, 4 x Loki)
ssdeep 6144:2wVqCOiGWu2dw9r6bDo78j+JEwh3pc8aMxfcPbwoP:2KyWhw9x8spc7MiPbwoP
Threatray 8'360 similar samples on MalwareBazaar
TLSH T110341210EB2AC922FD4A66793C238F65DD453D1623C98CC396A93E6948F1FDC51312FA
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
358
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab.exe
Verdict:
Malicious activity
Analysis date:
2021-08-24 13:55:00 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/41b549b8-6a46-499b-8aca-0c9da6f174e3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/181945/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.11357.11314.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/399dcbdc-594a-4a21-8181-d099f2f99f11
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/838343
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 470796 Sample: b123.exe Startdate: 24/08/2021 Architecture: WINDOWS Score: 100 30 clientconfig.passport.net 2->30 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 5 other signatures 2->44 11 b123.exe 1 2->11         started        signatures3 process4 signatures5 56 Maps a DLL or memory area into another process 11->56 58 Tries to detect virtualization through RDTSC time measurements 11->58 14 b123.exe 11->14         started        17 conhost.exe 11->17         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.mendilovic.online 45.147.160.108, 49718, 80 GCOREAT Luxembourg 19->32 34 ansilsas.com 162.55.82.38, 49717, 80 ACPCA United States 19->34 36 www.ansilsas.com 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 48 Uses ipconfig to lookup or modify the Windows network settings 19->48 23 ipconfig.exe 19->23         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4abecbd1a56abc36103d0595086bfd31c50f33236b9431b53860e5c1e20c2a7/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-08-24 14:23:04 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6sv6zpi2k2v4gyid2bmvbbv72mofb4zsg24ugg2tqyhfyhrayktq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
40bc59f1d4f063924c57d0cee83dcabb6e3aa2ea3122d99b32fcf09257c22a66
Formbook
5e870c6ebc9666619f80ecb157b67de938fe42a7d17533d3705b5464923ff7f1
Formbook
70bbe5e2d1987ad7bf4cb067ef7c2447ef8fbc668078e725abd14d49857a8d3a
Formbook
8898f85efa9e25992b6e00da2b7d3338649ebf89d26a92b9bf156618960f5466
Formbook
92c3ce5b263bedf0e55723eff317e03c62586173fed419e4f62f26c19835b4c5
Formbook
9598f7ebeef58e063e6e5de7da5ea2775991628d11c4fae3e3e2854fa22065eb
Formbook
e4145611fb9671662e34a829bbebdafa3bf22e16ec460c49939c52ccc3ba03d7
Formbook
f0e734543c047d2ca1a76a4e47553e85d50c57ff9d3dfbd0e55806ff890fef38
Formbook
+ 8'350 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:lt0h rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210824-fr7f1gk1xe/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.bulverderoofing.com/lt0h/
Unpacked files
SH256 hash:
4b0125cd7049dba92a565c874848edee6e6be3f6b32b6a934d9fec5cbd5e4099
MD5 hash:
dee8ae3d305808bd6a1f9fccd12db26a
SHA1 hash:
9112ec525f595e2dc0fff0bb39b7653cc689c028
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/dc93a91a-4c79-476f-88da-6029122e1ace/
Parent samples :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 hash:
f4abecbd1a56abc36103d0595086bfd31c50f33236b9431b53860e5c1e20c2a7
MD5 hash:
b3104364708fa64e5242cbe54885ec56
SHA1 hash:
4be2064313b2f72e472b8a81797e7b14a5b3aec8
Link:
https://www.unpac.me/results/dc93a91a-4c79-476f-88da-6029122e1ace/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.13
Link:
https://yomi.yoroi.company/submissions/f4abecbd1a56abc36103d0595086bfd31c50f33236b9431b53860e5c1e20c2a7

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
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/181945/

Comments