MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2. 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: a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2
SHA3-384 hash: ddcc772a840e58b9a9a9ca598cadc8bc5b4931707a657250360e5b6b0de0645ae32ec533413e2281ef2981fda0a8daca
SHA1 hash: 031d4d82ef20549b96f337e806d8d29d25eb1420
MD5 hash: ce6852fece21f250d5e4db4bc3f34d4e
humanhash: juliet-wyoming-montana-august
File name:VSL_PDA$48,000.exe
Download: download sample
Signature Formbook
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File size:633'856 bytes
First seen:2022-07-08 13:57:39 UTC
Last seen:2022-07-08 15:04:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:bG1ZrR05Do11LUc07Bp2hYjmA5XrGSZcph03BS1WDlt:21ODo1RUTpLxUlphn
TLSH T153D412663B95E922DB2A0BFCAA22C0091330BD167B6AEF18BD5771FC5B313135493587
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1429.9151.6615.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62c8382a11764e36f822e37e/reports/a254c913-478c-4125-846e-bdef28d27c6e/overview
Result
Verdict:
UNKNOWN
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/825a46f1-4cc8-4bac-af37-68188a80505a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1027319
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
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: 659814 Sample: VSL_PDA$48,000.exe Startdate: 08/07/2022 Architecture: WINDOWS Score: 100 29 www.zytfjgyl.com 2->29 31 www.westsprintcapital.com 2->31 33 westsprintcapital.com 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 6 other signatures 2->41 11 VSL_PDA$48,000.exe 3 2->11         started        signatures3 process4 file5 27 C:\Users\user\...\VSL_PDA$48,000.exe.log, ASCII 11->27 dropped 49 Tries to detect virtualization through RDTSC time measurements 11->49 51 Injects a PE file into a foreign processes 11->51 15 VSL_PDA$48,000.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 chkdsk.exe 18->20         started        signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-07-08 07:53:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
27 of 41 (65.85%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uln2khnssebiykp2enxxpolbzirfowb2fen2cfuqrlzr73ofehza._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:bh33 loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220708-q9te7sfbh8/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
0b73887b6c1398b0e030cff200b6c310cfba2533553c67cbf2baaafff4f511e8
MD5 hash:
a7dded435593b2183db1601d8f5af73b
SHA1 hash:
4bcce25372a6b2867461c980a801064eac6e60a4
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
Parent samples :
ff718c72c5852e87c6ab698519b971e47805c87692a897c2e8ad258fa4633569
a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2
fff738f7be7963131b2c1b04b7747e7dd8bd250edfdb70d865c04ba18f019a7b
94fe214d7ddeed7f772ffe2d583db58c420033abcb3199b4aa93c1d9eaa8eee4
857edc6f03517e0bf132a98b1ed00a3900c30bf677ee60ff6fd7b79ff05515f6
SH256 hash:
bd7cfb5b4344bcf92d32dcae121277105b580acc8074b4364352ba0cc978cbc5
MD5 hash:
bbb09fb1ccd3a49c6aa690890a676277
SHA1 hash:
f1ab975beb63f569c6253884fecce9988446459e
Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
SH256 hash:
8ebed683ab6ac474b8e0b4d60f044037222ca5a83b947805522a5c9314a33427
MD5 hash:
2ef034a94766db10047333156803e4ef
SHA1 hash:
b390848193254261b31dc4f252002079de4b2c37
Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
SH256 hash:
3b59fe180dd50e3f3d4fdcbdd4e7a2d4e3e1c85ae43cb4f3716c4be41e9ec2ae
MD5 hash:
9ea556e333e216a65aa09c102f36004f
SHA1 hash:
814c07f1dc68bd61840384aac3aa8346d9f8148f
Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
SH256 hash:
1317867a427164b2747ca12517221c8419cafe12fbd1cee545fb379477304de6
MD5 hash:
4468764b686aa54555e5351f4e000b22
SHA1 hash:
3dd0e9baccff7f5722bb2b1cbdfdcc48e8f43dbd
Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
SH256 hash:
a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2
MD5 hash:
ce6852fece21f250d5e4db4bc3f34d4e
SHA1 hash:
031d4d82ef20549b96f337e806d8d29d25eb1420
Link:
https://www.unpac.me/results/464cb16b-979a-4ff7-b7b5-6c4a5b95f40e/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2dba51db291/report/overview.html
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/a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2

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 a2dba51db291028c29fa236f77b961ca2257583a291ba116908af31fedc521f2

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

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