MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38. 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 2 File information Comments
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SHA256 hash: b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38
SHA3-384 hash: 2577eab16dc432f2d3bdb0ba542a6fb22f1784f1850d6f1dd02e22ad01698534c6737e3e8798dbb236492fbb3c976ef9
SHA1 hash: f473902f3d0d510682bfa990b82bfa5a1692be1a
MD5 hash: a2e37960868dcd5e638361d5d7c7b4fc
humanhash: minnesota-nine-lamp-four
File name:a2e37960868dcd5e638361d5d7c7b4fc.exe
Download: download sample
Signature Formbook
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File size:762'880 bytes
First seen:2022-02-16 19:06:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:gJks278taLhNJMPlnalaAq9jvq2SjLJHHI/d5YUVJhFugmQ:gKs0UaLhNJllaAq9udNI/MUVJhFI
Threatray 13'571 similar samples on MalwareBazaar
TLSH T13DF41240BB67AA91C9BD47F9B061C03B47E69A3D7303DE794CE6B2CC05523E095B46B2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/242040/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1197.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/620d4b64ac8ad0468b481430/reports/89bcdabc-54d4-471c-8532-108b6601ae17/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f2e0193-124a-4044-8d09-602688313e3b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941130
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 dnsIp2 2 Behavior Graph ID: 573611 Sample: 5t0U1adbMS.exe Startdate: 16/02/2022 Architecture: WINDOWS Score: 100 31 www.flakapk.com 2->31 33 flakapk.com 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 8 other signatures 2->41 11 5t0U1adbMS.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\5t0U1adbMS.exe.log, ASCII 11->29 dropped 51 Tries to detect virtualization through RDTSC time measurements 11->51 15 5t0U1adbMS.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 Queues an APC in another process (thread injection) 15->59 18 explorer.exe 15->18 injected process9 process10 20 systray.exe 18->20         started        signatures11 43 Self deletion via cmd delete 20->43 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 23 cmd.exe 1 20->23         started        25 explorer.exe 1 152 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-02-16 08:27:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
201616caaad839735dc703230c000ebb254e0435a77253e160622c8cfbe10cc6
Formbook
22259dc22f3239bde439c60287d4498f423a35c8e1c2b5963616569d9786252f
Formbook
280a181eae2d790e6992653b19b216b9407a948f42d32db3ad78e81660ff1f8c
Formbook
5de06778dd414ee2cc418f089914bb7a656ccf854a30a004d286599cda4c4013
Formbook
9e84d9e04413f40cb77c68b0e0f107368c817cfdaf9708fb4aa995c964eeb223
Formbook
acb28239c256d400e79f51a7f83036d19daa0d814d32dcf765d8ec9aa0293cea
Formbook
caf586c9d78e7b0adc9d91286228eba817463d60b912651f2aa43288441d4d48
Formbook
dc6b59f8711b0312ed522ef0eb3d4e115b03f1159ed462ba356036644b4f787b
Formbook
fa3b721595b9e5571bcfd42767aa563f6e363a3fff9e9cdbfb525d0f28e62eb7
Formbook
+ 13'561 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:u6f8 loader rat
Link:
https://tria.ge/reports/220216-xsmpnaddar/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
ea838e0384811cc8fe8b402800db2c4e6d245b8fa7e19be75598b1acfcaf8e27
MD5 hash:
fbc09d4966f3efeaa13409622e7de925
SHA1 hash:
6181388dbff60fe021269c931054283129e99010
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
Parent samples :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 hash:
4bb024ac1d994871fc267c509d731b8449032885caac8187be446700901879fd
MD5 hash:
ae6410deceedb4bc31e29a3b91965925
SHA1 hash:
7f6b7f31ee1786c31e0b7979dcbd82c6aa0a4b3b
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
SH256 hash:
f59c255e69900c21b1ecab010cfd281e643966f9537e1c595b222c598ff5dd47
MD5 hash:
9f969d30ca07307343793ebc9e14ccd2
SHA1 hash:
b063a5ba07ca2e47504eaf43e60e1959339dd855
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
SH256 hash:
668e5163cfd8672f63f72bae373b4e63092eb3bf2dacf8e1cab82ec15d6563fe
MD5 hash:
04d68a443b7ee821eeb86716ba68a2b7
SHA1 hash:
abeb02af588e43f7006796f504c448ec4913815f
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
SH256 hash:
10dfd6214fa02060d706cd8598500fd3208f31d904a32f1c1ee7c9695547fad2
MD5 hash:
36423a1933b315401fe7abaa03cc00aa
SHA1 hash:
5968603ad7218c7e74de9deb2b377ec789467071
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
SH256 hash:
b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38
MD5 hash:
a2e37960868dcd5e638361d5d7c7b4fc
SHA1 hash:
f473902f3d0d510682bfa990b82bfa5a1692be1a
Link:
https://www.unpac.me/results/90c902ef-eec9-47b1-86e7-402f31ebacf8/
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/b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38

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
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Rule name:Skystars_Malware_Imphash
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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 b9eab20f9cbbaae84e47a46b7f38bba153868c53b9b71765af05866707b48c38

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2035729/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/242040/

Comments