MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3
SHA3-384 hash: fcd4f66410e8ed62bb9c51bf814ce141fc578b670c4809a36f2fb0abfed4b3e129bdf9be10b55eb9633145c681236e20
SHA1 hash: bf1e36ce6dc352f117b06ea6a80afe0b89610c40
MD5 hash: bf0831bbdbd42b83389ccfa197d7feab
humanhash: stairway-eighteen-kentucky-foxtrot
File name:bf0831bbdbd42b83389ccfa197d7feab.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'353'216 bytes
First seen:2021-12-13 17:08:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:1JdLWzjOCZ/qejomZnTQW+vgNSe19F4hH4kk7vdMXOHtEgas:1JMzD/qQomZTpZNSXykKAOyga
TLSH T1BF55125863D49D28F17E17B8A0B0C230D736BD01A81A931DAAD56DEF7E737809E05367
File icon (PE):PE icon
dhash icon ce9c9496e4949c9c (73 x AgentTesla, 51 x SnakeKeylogger, 30 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bf0831bbdbd42b83389ccfa197d7feab.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 17:30:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fdda8396-7505-40b8-a54e-4f112446d4ab

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/213637/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b77e354b267126def1cc43/reports/c9b9429b-fa7e-451a-a25a-c33b9e6f9acc/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4fb47e1b-c543-4bdf-96d5-2a115580cf52
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906486
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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: 538965 Sample: H6T3l1GE7E.exe Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 7 other signatures 2->52 9 H6T3l1GE7E.exe 3 2->9         started        process3 file4 28 C:\Users\user\AppData\...\H6T3l1GE7E.exe.log, ASCII 9->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 9->54 56 Injects a PE file into a foreign processes 9->56 13 H6T3l1GE7E.exe 9->13         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 13->58 60 Maps a DLL or memory area into another process 13->60 62 Sample uses process hollowing technique 13->62 64 Queues an APC in another process (thread injection) 13->64 16 systray.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 34 Self deletion via cmd delete 16->34 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Tries to detect virtualization through RDTSC time measurements 16->40 22 cmd.exe 1 16->22         started        30 www.nshocam.com 156.232.184.86, 49828, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 19->30 32 www.retolerate.xyz 206.166.251.140, 49814, 80 CTCUS United States 19->32 42 System process connects to network (likely due to code injection or exploit) 19->42 44 Performs DNS queries to domains with low reputation 19->44 24 autoconv.exe 19->24         started        signatures10 process11 process12 26 conhost.exe 22->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-13 05:08:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fa83 rat spyware stealer trojan
Link:
https://tria.ge/reports/211213-vn5cssdhf6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.nshocam.com/fa83/
Unpacked files
SH256 hash:
180b50344d1b6b506d9832816f7a88ec8a04afe44cc114c1aff99bffe3868bf8
MD5 hash:
85425e1cd507aaf0dd799778f8fe432d
SHA1 hash:
1a26201e8f44fa3efa8b4e78b843445f40616447
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0d8f9f84-c0ac-4d11-8927-560b19681ecb/
Parent samples :
a75c86c3baabf9dea3dd33fde9e53eb91608ba0466d947ac6f9506de45d099ea
84c2b9e7449d2cf1ec1d43b13a9163e6fe355e3f8d301b34b7930d24f916725a
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
ed2f68ce6d715976cfad3c41991685f1a190713626aea55c454da90682aa7ccb
6876e8698f67c2b477c89b891199d3485051a14f52284f39e35a8e8057f53fae
fd7d542aa6e922020e6fb15fc151be03a967ca01b09c75cd267302b873f1a79c
1409ef2f3a8f71bcac7c0e335380f5a804535dba5dca598429298a53aaec9e04
039cb9fe74c15a9ef07f795f41f1a05bf2adad49566c866f94befed5815503e4
54562896613b429de9564f501b6d277537a57dc5d0a9bbaa5260e3ffc055a543
84f01d9761a5e76774cac6a3a21c50e3b653f725276d32ea3a10d7ec00e14c99
4ae2cc851969d2bf66879df62acb3860edf32e3224b3a81460fc84ca476cf8e4
a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3
3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6
SH256 hash:
8d783683059835d22dd329bf70c4bc5b0792af4a6fb8bb214b918f9f409598cc
MD5 hash:
dc3090a41bd0b86d964b6ae3fb879f55
SHA1 hash:
c21d4918c5ed0177e01714a4b8424de7f6773fc2
Link:
https://www.unpac.me/results/0d8f9f84-c0ac-4d11-8927-560b19681ecb/
SH256 hash:
18290f0691549e5bc3e5c6879c5813ecce52fd4beba2989c64850fd813ab4a3c
MD5 hash:
edf5a1aae353e5c13cd98211154c824f
SHA1 hash:
6a1b6be8b8d71540107d79cf05c455d2e713daa4
Link:
https://www.unpac.me/results/0d8f9f84-c0ac-4d11-8927-560b19681ecb/
SH256 hash:
a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3
MD5 hash:
bf0831bbdbd42b83389ccfa197d7feab
SHA1 hash:
bf1e36ce6dc352f117b06ea6a80afe0b89610c40
Link:
https://www.unpac.me/results/0d8f9f84-c0ac-4d11-8927-560b19681ecb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a5ad2e2a940e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3

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 a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1866451/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/213637/

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