MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346. 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
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SHA256 hash: 6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346
SHA3-384 hash: 722df42c0fe20a5c7dddfb7aa8933ecc6755ccd9135988ade337cc517427ff3f92f16bd2ec01edc8dcc99a3e7eb6142a
SHA1 hash: 2670099fd06a6b76290ea8d927af79199f089dec
MD5 hash: 28c64598559ce9c3f6c68861343dde93
humanhash: jersey-jupiter-mountain-coffee
File name:28c64598559ce9c3f6c68861343dde93.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'148'928 bytes
First seen:2021-12-11 06:53:53 UTC
Last seen:2021-12-11 08:31:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:92wx6yGVbKUJ3rSlJ+iWZYdDz36eFn5ibv3YfyKgnTQTBYfXkGG:cwx6VUM3rSDWwHKedA7YflUTQTeXkGG
TLSH T1803512223AA8CD11D76947B6DD9F602043BCF602B852DB3E2EE5B3DD49127968401ADF
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
28c64598559ce9c3f6c68861343dde93.exe
Verdict:
Malicious activity
Analysis date:
2021-12-11 06:55:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e7532333-794c-4ed6-89ba-a86acde252a5

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/213285/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.3662.14921.3998.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b44b0e4d8e6f3a5e212e1e/reports/de57d68d-ed74-4f83-9bde-eb96b18772cd/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eb953f2e-b654-4728-905d-02bfa411e567
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/905651
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 538129 Sample: TIBmWuu1Io.exe Startdate: 11/12/2021 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 10 other signatures 2->44 10 TIBmWuu1Io.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\TIBmWuu1Io.exe.log, ASCII 10->30 dropped 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 TIBmWuu1Io.exe 10->14         started        17 TIBmWuu1Io.exe 10->17         started        signatures5 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 tinydharla.com 198.54.121.233, 49807, 80 NAMECHEAP-NETUS United States 19->32 34 www.gpstephan.com 35.213.222.222, 49808, 80 GOOGLE-2US United States 19->34 36 10 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 48 Performs DNS queries to domains with low reputation 19->48 23 rundll32.exe 19->23         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 23->50 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 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-11 03:27:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=npuhjcj45jijcurouf7im2e7xqaawkbxphtwq5qlotyfc5v2onda._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mh43 rat spyware stealer trojan
Link:
https://tria.ge/reports/211211-hn8n1aahc5/
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.blocktomatoes.com/mh43/
Unpacked files
SH256 hash:
3c0bf113aab4e4239b45a472a486551f73b31e8197fac4b03ae2d76a7a822ad7
MD5 hash:
559118ac624bf1006fe97434b4d539d7
SHA1 hash:
f79324d331e05be0a9f27eaf009ef51734966278
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6790617c-f277-4774-98b5-6140ca23a2a5/
Parent samples :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 hash:
708d6c31f2ddbbe4d4a37be15da46e5c2454af6c6385317face39d8c88585b4c
MD5 hash:
367210c57978a28029652be9b21c951a
SHA1 hash:
b8ef5c7a00d0164921057d19e6068beab58c6500
Link:
https://www.unpac.me/results/6790617c-f277-4774-98b5-6140ca23a2a5/
SH256 hash:
9cd82dba6c55d901ac7d7007b7a04a30146ad7c297400d44f9d96b90c5ca25d4
MD5 hash:
d9477c36da677507cd33c6eef325d694
SHA1 hash:
330dc88b5041ca9edf57542f5a30c37eef6f11b1
Link:
https://www.unpac.me/results/6790617c-f277-4774-98b5-6140ca23a2a5/
SH256 hash:
6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346
MD5 hash:
28c64598559ce9c3f6c68861343dde93
SHA1 hash:
2670099fd06a6b76290ea8d927af79199f089dec
Link:
https://www.unpac.me/results/6790617c-f277-4774-98b5-6140ca23a2a5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 6be874893cea5091522ea17e86689fbc000b283779e768760b74f05176ba7346

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1871135/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/213285/

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