MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments 1
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SHA256 hash: 21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a
SHA3-384 hash: 934ec2b5ef95bfadc69d3cf811341a3220debae5db9d42a2693cfb66a969b403fbff392ff3f3360a2dcc98f091c3debb
SHA1 hash: d800272e4e9dd8eb2545378c375bf7b287c61675
MD5 hash: 7e6941867ebd9aeb6ca816a7fd3fc190
humanhash: victor-failed-violet-virginia
File name:7e6941867ebd9aeb6ca816a7fd3fc190
Download: download sample
Signature Formbook
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File size:356'864 bytes
First seen:2021-10-26 14:39:46 UTC
Last seen:2021-10-26 14:47:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:FDWM7pZGKLCdzvHzcxLWyEwNyfDV7EWc101lMH9E13yA7TWLz+o9WZg9uqL:VlCxCLWNnD+51Uls9E1yAzoMG5L
Threatray 10'842 similar samples on MalwareBazaar
TLSH T1AB74224846DDF339CEBA0BFA2061821457B460543E27D72F2F4475F55E7BF096A20A8B
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
313
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200274/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1085.25055.4747.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61781346db358dd15edcc55f/reports/59e98d4a-5220-482d-98b9-bb9df630eb95/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/67132c74-e884-4dd2-b688-e37d067c776b
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/877107
Signature
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 509561 Sample: aD74smrP3Q Startdate: 26/10/2021 Architecture: WINDOWS Score: 100 29 www.dicasdamadrinha.com 2->29 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 6 other signatures 2->53 10 aD74smrP3Q.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\aD74smrP3Q.exe.log, ASCII 10->27 dropped 55 Uses ipconfig to lookup or modify the Windows network settings 10->55 57 Tries to detect virtualization through RDTSC time measurements 10->57 59 Injects a PE file into a foreign processes 10->59 14 aD74smrP3Q.exe 10->14         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 Queues an APC in another process (thread injection) 14->67 17 ipconfig.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Self deletion via cmd delete 17->37 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        31 carterscts.com 198.46.90.29, 49822, 80 INMOTI-1US United States 20->31 33 www.carterscts.com 20->33 35 192.168.2.1 unknown unknown 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-26 14:40:08 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
2ff7c84701eaf8b5865bb2716e8a8d0f0ae71ddf725b0330e6b88229585e2ad1
Formbook
3e57610037924c21124e91f187f11f45e1d1cc44de45a1d965cd29a92d56f450
Formbook
65acd8c73c518c97a1539bc8e3f62fb8f06431d7030c6cc1463c855aec0ec46f
Formbook
9d8faf70b5732a7994ea4a5b49e0ee5ada032b0a03e2048de8ffe6da4e66c412
Formbook
d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1
Formbook
e777d588f24e21fdcc3add6de5b93d5fb498b594a59f03d02b5a7880bc5d5180
Formbook
eca9be257354d26e49e1b03d1b8d42228cf66b5ee1b1236afad3c348da43c48b
Formbook
f13197aff6f530d9883aa1787cd57f4580c4c92bcaa5100f2641924c3e6867a5
Formbook
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
Formbook
+ 10'832 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s18y rat spyware stealer trojan
Link:
https://tria.ge/reports/211026-r1wpmshga2/
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.agentpathleurre.space/s18y/
Unpacked files
SH256 hash:
8ec7e57c64cc5ef3e2f0c03182817fb04abc6262d56cdb633df8cea09a3af976
MD5 hash:
9c7b1fcacdaf197bee3f22e0f1033687
SHA1 hash:
49833d5e862101577012dea72248c7fb2c81089e
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/f39cda3e-d0f1-45ab-97ab-0f1f51b10b7e/
Parent samples :
65acd8c73c518c97a1539bc8e3f62fb8f06431d7030c6cc1463c855aec0ec46f
2ff7c84701eaf8b5865bb2716e8a8d0f0ae71ddf725b0330e6b88229585e2ad1
21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a
5e529cbb901aced8a6af49250afd3d67e059d717d7ecf3edc32e18a9d549361c
83708560ecc442b5b6dadbdf5af39ae4f1e843664c932a9de3eff1e38bf6d4a5
be61aba2c5d56a20b50c5f4a682087840876fdf7504fbf5eb8ac56a0e572fb33
8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9
0bbec09890d31b79c26d2b175684426630f8b243c4a210cd919e54f35572bd80
1aeb38db4aa9f7758a8e63680f8c71f4f61df56c2045a8f029009a6c15f06722
2cd05a280197535b97ed43fb3d55bdc7bb2efe223f7dd869e7595f0f61d23fe2
fd7a4b329f76991a0957245515cc9dbcffefa941a94f1186511ce7b8c0a6e3eb
dad4a79f2e84a90393bc1ad3134c985f46d75468eb4488d4ec692db32bff41ef
SH256 hash:
200dbd2d9c56ead58ba7075ead40affd7daefdc4a059b0f2b81e83e869b6de24
MD5 hash:
ad949d835f09b425bb41d616b2c9c0bb
SHA1 hash:
5dd2d2c2879dee1d229f4b43a8c367b3cff695cf
Link:
https://www.unpac.me/results/f39cda3e-d0f1-45ab-97ab-0f1f51b10b7e/
SH256 hash:
a5c2baaf64d2f20666f5d02876e9f5b59d8ec5c538ee82f1711d9d0db3f189e0
MD5 hash:
8ecd3b39d0778503439b9e9dd0475b2d
SHA1 hash:
249f0f11920286ba191592bfaf13a2c0d7cc7ca6
Link:
https://www.unpac.me/results/f39cda3e-d0f1-45ab-97ab-0f1f51b10b7e/
SH256 hash:
21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a
MD5 hash:
7e6941867ebd9aeb6ca816a7fd3fc190
SHA1 hash:
d800272e4e9dd8eb2545378c375bf7b287c61675
Link:
https://www.unpac.me/results/f39cda3e-d0f1-45ab-97ab-0f1f51b10b7e/
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/21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a

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: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 21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/200274/
  
URLhaus
https://urlhaus.abuse.ch/url/1705857/

Comments


Avatar
zbet commented on 2021-10-26 14:39:47 UTC

url : hxxp://binatonezx.tk/seasonzx.exe