MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d
SHA3-384 hash: e886708faedfe3ece9bfc3ebf7784c40c8c43bd7dab9f09ea8e83027224ec093e5de0e7c8ccdef26daeebdac65becf45
SHA1 hash: d010b519d25dc691d833a592989df3fe437834d3
MD5 hash: 6301e1fbe94a8eefa5fadd5e842930c0
humanhash: freddie-bacon-iowa-three
File name:6301e1fbe94a8eefa5fadd5e842930c0.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:498'688 bytes
First seen:2020-11-25 12:20:58 UTC
Last seen:2020-11-25 13:40:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:CHd7j4whhjZADjW4pVQ7PqEluffRQSAt8LFSMWm2DCo9SZ+:CHRhjZUjW4P2uffRQ98
Threatray 2'979 similar samples on MalwareBazaar
TLSH 16B4ADFC311079EFCA5BCAB5DA543D54AE603877531BC206A61B04DAAA4DBD6CE108F3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system 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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/546905
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)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 322548 Sample: fSBya4AvVj.exe Startdate: 25/11/2020 Architecture: WINDOWS Score: 100 31 www.myuniadmin.co.uk 2->31 33 www.besteggcreditcard.com 2->33 35 3 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 4 other signatures 2->49 11 fSBya4AvVj.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\fSBya4AvVj.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 fSBya4AvVj.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.benlongwj.com 154.212.39.234, 49757, 80 PEGTECHINCUS Seychelles 18->37 39 www.midwestsupplyus.net 74.208.236.48, 49747, 80 ONEANDONE-ASBrauerstrasse48DE United States 18->39 41 17 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 wscript.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-11-25 11:54:40 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z6ebyuuyaeu7nbo2dxxem5abr6qpyhntizlf3wixvyawbtrgwjoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
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Formbook
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a76588c6088ba6b56904fa50df8547ff3b93a67b520769d73e92b04bb8d718d6
Formbook
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e78b5071209858cdcb5ce02f7df3c3fb857088f7088b964791d289c789451e67
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ec5a75f9492dd42e6da3aedf206c5ff750b1ab67b75a88410e967c8c87bd65b7
Formbook
edb4639fe2eeb567856790fc73f716baeea57ab54fc91e31f49309009978de55
Formbook
+ 2'969 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201125-95j4g1gfnn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.absbeautytechgeeks.com/coz3/
Unpacked files
SH256 hash:
cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d
MD5 hash:
6301e1fbe94a8eefa5fadd5e842930c0
SHA1 hash:
d010b519d25dc691d833a592989df3fe437834d3
Link:
https://www.unpac.me/results/63e178b5-6e71-4d1d-9ea7-3fdf3efcace7/
SH256 hash:
cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e
MD5 hash:
8cd5d2014866f4ef60802ff1826998a6
SHA1 hash:
8ff75946905d0b117080cc5a07e6e0bbea4e9bbd
Link:
https://www.unpac.me/results/63e178b5-6e71-4d1d-9ea7-3fdf3efcace7/
SH256 hash:
6a81f247f54542cc5cfa7ec4abc7a9585357633f7cdb6a46dd337d785ce8e06a
MD5 hash:
d0b262cbbc04875945b5821dbde4b94c
SHA1 hash:
f6251fe66831c0533f615878673d6ddcd635b17d
Link:
https://www.unpac.me/results/63e178b5-6e71-4d1d-9ea7-3fdf3efcace7/
SH256 hash:
fcadf0e3f1899971b2f82d17cb46959ea4fd62104951a7f64fe544feeed5bb12
MD5 hash:
b6394c3ae21f85ccd8415b9eb8810a8d
SHA1 hash:
a7c14ba7e6420305195ff3ac438aaf199eb4b452
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/63e178b5-6e71-4d1d-9ea7-3fdf3efcace7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d

File information

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

Web download

Formbook

Executable exe cf881c52980129f685da1dee4674018fa0fc1db346565dd917ae0160ce26b25d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/852214/
  
Delivery method
Distributed via web download

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