MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749. 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: c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749
SHA3-384 hash: 5b88eb3d6610515dab260d85e14482ed27378c663fac2d6fc76495357700bca07c7fe6e2797b0440e221480115ab3f8d
SHA1 hash: e6d98b26140257c7214e113f2c2143de4f22a453
MD5 hash: 4f623f7aab4fc4b985783241478917d0
humanhash: floor-orange-comet-kilo
File name:4f623f7aab4fc4b985783241478917d0.exe
Download: download sample
Signature Formbook
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File size:952'320 bytes
First seen:2022-03-14 19:06:26 UTC
Last seen:2022-03-14 20:41:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:CiBvFM0K29tlDbUGpUvUGQg52iXE4R0Pl2DmCnhzA:CiBtZK4LEQtKE/PInhzA
Threatray 14'957 similar samples on MalwareBazaar
TLSH T1FC15F1A13E193FD2F9395BB4001A566EC7E329662E03D5795FF12DC7081FF0286A5A23
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/250394/
Detection(s):
SecuriteInfo.com.Variant.Ursu.157237.17992.12915.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
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 replace.exe update.exe
Link:
https://www.filescan.io/uploads/622f925d0cd58dbd92988984/reports/3b227be5-5448-47fd-8833-33df0e7ac2d8/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/88bfe27b-c0d6-4933-80bc-e98c4bc08d5a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/956450
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 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
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 netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 588932 Sample: DesliqapCD.exe Startdate: 14/03/2022 Architecture: WINDOWS Score: 100 31 www.punnyaseva.com 2->31 33 punnyaseva.com 2->33 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 7 other signatures 2->43 11 DesliqapCD.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\DesliqapCD.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 DesliqapCD.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.mcrosfts-updata.digital 198.54.117.244, 49785, 80 NAMECHEAP-NETUS United States 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 47 Uses netstat to query active network connections and open ports 18->47 22 NETSTAT.EXE 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-14 17:31:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
19 of 42 (45.24%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
085716dfefcb862a1677484242f5e03be402875e1752717a9e9f6ce346120ea4
Formbook
109bfc4f1d73233b058db08b761ad7c77a7bc43bfe2b10a71614e536c2e89d3a
Formbook
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5
Formbook
2dc7525f9ee6e09a25f840b457bf5b0ba228c4697e1f3d4b81bd2964d2eafc61
Formbook
757cd8cf8e9d17c61a1f5308d75ff5eae936d15f25fac859f8731b0e7030d4ad
Formbook
c7ceb2adec0ec0d5d01cbbc2753f0c2ddfc149c2e4daa47a519f44604ea5e557
Formbook
e321bd433e6e630bb69b21c80533446717274fd02eb74e74670934f5cc7e145c
Formbook
e51c60f40080414b74c2eeef62780b28aa31c7875dada6dc2097323a61cc8396
Formbook
+ 14'947 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:ahc8 loader rat
Link:
https://tria.ge/reports/220314-xsnxqabcd4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
4ba151c67b778cd34dd861762d9474946f039c9d066ca04849a7b994bcc6460c
MD5 hash:
97baeeaab7313c74dfd7643c626f7dc5
SHA1 hash:
5419e7ebaabdf884bd2bde82b0aaee7b2cedb84f
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/95b20087-c3a0-4914-bc77-bd21ea41dee2/
Parent samples :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 hash:
8e0d8999de63044238ddfcc70c28996924b27246b88e88049b1a6609d0545859
MD5 hash:
6c1d0ff85a46f719c27076f63611e952
SHA1 hash:
d7bdce06382e59d76e3a827b73d511144a0a1e71
Link:
https://www.unpac.me/results/95b20087-c3a0-4914-bc77-bd21ea41dee2/
SH256 hash:
5b7da029d64cea05a37737af6d68281d089430389f07168b6d4caa83792cc675
MD5 hash:
6cd61188afd9a9597b61c5431eee062d
SHA1 hash:
3e580950318104d6db7f4fe9e4ba26c4a88d4a0a
Link:
https://www.unpac.me/results/95b20087-c3a0-4914-bc77-bd21ea41dee2/
SH256 hash:
852d74cac614a760b6edd21efae915a5f30399fc5d9235b2bf1809b0e934ad13
MD5 hash:
5c943301a08945667443bd7ec1aa90b0
SHA1 hash:
1ddf17f4dd1a39fe08bc9f323bf1de4dd54253fb
Link:
https://www.unpac.me/results/95b20087-c3a0-4914-bc77-bd21ea41dee2/
SH256 hash:
c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749
MD5 hash:
4f623f7aab4fc4b985783241478917d0
SHA1 hash:
e6d98b26140257c7214e113f2c2143de4f22a453
Link:
https://www.unpac.me/results/95b20087-c3a0-4914-bc77-bd21ea41dee2/
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/c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749

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 c8781b8dca56fa093b3df95c16360b2dc381eadb10b4f9055e11b39f34284749

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2070349/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/250394/

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