MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c. 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 2 File information Comments
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SHA256 hash: 943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c
SHA3-384 hash: cf5824ffadb4485404801f9c53cca8edc3dad0e3bbae844c7d310e140bdb614e12f0f4b71423312e3de356aaa8f2b258
SHA1 hash: bc2f5ec79debfac8f87fde09b0d9d72dac9b6f93
MD5 hash: 8e898565abe03640846bca9be730eac2
humanhash: oven-oranges-venus-delaware
File name:vZnbpHVO9Ay3PKW.exe
Download: download sample
Signature Formbook
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File size:697'856 bytes
First seen:2022-03-04 16:42:32 UTC
Last seen:2022-03-04 18:52:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5IgfB4e6NmrAM6RjkcRm00dT3NYArvRnLlbSJ5HM8paT932Nr6xZygHKFj5pYN6x:5prRORmZdTRpZbSJC8pSGNr6xZyg8UcU
Threatray 13'999 similar samples on MalwareBazaar
TLSH T18CE44AAD366071DFC82BCA72D9681D68EF907877830F92179063219D9A2D997CF250F3
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/247388/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1121.28382.26558.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
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/fdef40a1-2fdd-4ced-aca9-968c75f18f5a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/950868
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 583349 Sample: vZnbpHVO9Ay3PKW.exe Startdate: 04/03/2022 Architecture: WINDOWS Score: 100 33 www.todosartenes.net 2->33 35 parkingsrv0.dondominio.com 2->35 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 6 other signatures 2->49 11 vZnbpHVO9Ay3PKW.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\vZnbpHVO9Ay3PKW.exe.log, ASCII 11->31 dropped 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 20 explorer.exe 15->20 injected 71 Tries to detect virtualization through RDTSC time measurements 18->71 process9 dnsIp10 37 www.wanfengzp.com 154.213.81.89, 49761, 80 COMING-ASABCDEGROUPCOMPANYLIMITEDHK Seychelles 20->37 39 www.multicoopltda.com 188.114.97.7, 49759, 80 CLOUDFLARENETUS European Union 20->39 41 www.4kx.claims 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 24 cmmon32.exe 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-02 17:46:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
30 of 42 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sqzansacr3lzvifk735bah72luydjt4sxaxxavkw6ewpbj7lljoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2a4415721925c12ce8a80719697ffbda5daf88fe34804b0549bc5d5605790cdb
Formbook
2c13447326df9da1edb4700336d4cf841f7575b7505df68ef2ae7bdb6f2d9f5c
Formbook
39cc0c369b8ce6f0570864f4ac0019abed40383a582aae1a13c34e2de08a7168
Formbook
3b10fd5bae448476e22cca9c4b9b12263c089af68ebfeb7159ddaf2f4ec3e7bc
Formbook
3e302b7a1b7d9862a5917a03e08205d8016cb2974566725e16926f4e6cff9c6b
Formbook
48b9bb721ab60fa9fc9feecef6c4e513b4bfc2049c72f187bdea927b20aa3898
Formbook
53685ac5f275b61fc580f2203e7d7e431d2b03b8e4320015b428745d68d5e333
Formbook
6b765d70d97e0b3d8da0d871555d9d284bd08e85034ad45447bde1aadd2b2878
Formbook
705bf99df489a6945a540499bc8c6d7b7564d9a255629e326013d4a85bb77a78
Formbook
dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de69a53f39b59e6574ffd
Formbook
+ 13'989 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:k8yh loader rat
Link:
https://tria.ge/reports/220304-t78nwsfdd2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
aaa0c6273d7b59ceedbd636352bf6c88c7c0aadb0bee4a0854e80ca0b3e2a176
MD5 hash:
7dbd56f4a7e3c4fed4fbee07bb93a652
SHA1 hash:
a45fa51cf3f57ad4faf418db846e15660471d9e0
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/199c94e0-b9cb-4842-9399-1a9c208f5bba/
Parent samples :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 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/199c94e0-b9cb-4842-9399-1a9c208f5bba/
SH256 hash:
e21dacf920b300d90d006b77812d1c96a0cb09770c9b384bdf615021c28f5c8d
MD5 hash:
3a560dea7bf0bce770f92c4b493a3302
SHA1 hash:
07940ea17e86a7a5c9989cb7d058b35c6b760281
Link:
https://www.unpac.me/results/199c94e0-b9cb-4842-9399-1a9c208f5bba/
SH256 hash:
943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c
MD5 hash:
8e898565abe03640846bca9be730eac2
SHA1 hash:
bc2f5ec79debfac8f87fde09b0d9d72dac9b6f93
Link:
https://www.unpac.me/results/199c94e0-b9cb-4842-9399-1a9c208f5bba/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/943206c8028e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c

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.

Malspam

Formbook

Executable exe 943206c8028ed79aa0aafefa101ffa5d3034cf92b82f705556f12cf0a7eb5a5c

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/247388/

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