MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f
SHA3-384 hash: 6f80135c3faa42955a23e36b59228e45ae7a0dcefdaecf67053a805d37c4f3b72ed5d7cce1c7eab2654938905683be63
SHA1 hash: 3f48029084649e39963710b0ae114b4663d48e68
MD5 hash: 8f6f8bc43de5fbdddedb774a22e3dca1
humanhash: cup-pasta-maine-undress
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'233'225 bytes
First seen:2022-10-26 13:20:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:7AOcZX4ctcwhwheT60L/2NgeSMj5HHeg/cbGOSMIEn:dPwhUwvfe/5HdYGOSMV
Threatray 13'758 similar samples on MalwareBazaar
TLSH T196451212BBC28471D4321E32AA36B7156D797D705F60C65FB3E0596D9A322827238BF3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9ee2e8e8d8c8e28e (5 x Formbook, 1 x RemcosRAT)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
vbc.exe
Verdict:
Malicious activity
Analysis date:
2022-10-26 13:23:00 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/c8e402cd-fdc3-4361-89c9-1c14ecb496c2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/324389/
Detection(s):
Win.Dropper.Nanocore-9974287-0
Create hunting rule

Win.Dropper.Nanocore-9975167-0
Create hunting rule

Win.Dropper.Nanocore-9975168-0
Create hunting rule

SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Adding an access-denied ACE
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/45650/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/12b72f30-2091-4e46-903d-0596ba510985
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1098410
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 731057 Sample: vbc.exe Startdate: 26/10/2022 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 3 other signatures 2->65 11 vbc.exe 3 80 2->11         started        process3 file4 49 C:\Users\user\AppData\Local\...\fujab.exe, PE32 11->49 dropped 14 wscript.exe 1 11->14         started        process5 process6 16 fujab.exe 1 3 14->16         started        file7 47 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 16->47 dropped 51 Multi AV Scanner detection for dropped file 16->51 53 Writes to foreign memory regions 16->53 55 Allocates memory in foreign processes 16->55 57 2 other signatures 16->57 20 RegSvcs.exe 16->20         started        23 RegSvcs.exe 16->23         started        signatures8 process9 signatures10 67 Modifies the context of a thread in another process (thread injection) 20->67 69 Maps a DLL or memory area into another process 20->69 71 Sample uses process hollowing technique 20->71 73 Queues an APC in another process (thread injection) 20->73 25 explorer.exe 20->25 injected process11 process12 27 fujab.exe 1 25->27         started        30 fujab.exe 25->30         started        32 fujab.exe 25->32         started        34 5 other processes 25->34 signatures13 81 Writes to foreign memory regions 27->81 83 Allocates memory in foreign processes 27->83 85 Sample uses process hollowing technique 27->85 36 RegSvcs.exe 27->36         started        39 RegSvcs.exe 27->39         started        87 Injects a PE file into a foreign processes 30->87 41 RegSvcs.exe 30->41         started        43 RegSvcs.exe 30->43         started        45 WerFault.exe 10 32->45         started        process14 signatures15 75 Modifies the context of a thread in another process (thread injection) 36->75 77 Maps a DLL or memory area into another process 36->77 79 Sample uses process hollowing technique 36->79
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-10-26 13:54:08 UTC
File Type:
PE (Exe)
Extracted files:
206
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uuwqxqy2eugf3voijr27zknzmwkvff6sb5mc26metql7wwoeybhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2bcd2cd9b7ba2e16ee457931ea8cb0b188655aacd4d7516fc5589009b7199a01
Formbook
326628b6afc679ebb166efee5fd2eb60bf8e266ce88d1e5d1924d74556479be0
Formbook
41344e5c95b80aaec71e1399c38731319a4151c0408f5709c2f973b430418a50
Formbook
67e6fd61e128d5649045a4fc55fc6c287722b5c92e65eef35ce0838d6210d901
Formbook
b1f692dd52aae8317db7cfd262a4bcc053cf721fc7a00bf66f4acc7cb5cc6cbc
Formbook
b6ee55a608c075f6276f52be9c3af5ba04b376c31b0f965461eb12ec9370a847
Formbook
c5045c31e194bd94e8979a7a8d46f5d403d98e697cd7f9335c5ab0904b613fa3
Formbook
fed743ba97ee8b48a3925816de1b2665d2a73bbf3bc75083fb9ade2855afc0ce
Formbook
+ 13'748 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ubpr persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221026-qlm9aafga2/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Executes dropped EXE
Formbook
Gathering data
Unpacked files
SH256 hash:
8acb565b34040b60b5bc01cbf3e25f4a2efd1d3b6033ac8ae5f57a23537aeef0
MD5 hash:
e1304571e811731588bc246eebbf41f6
SHA1 hash:
ecd998eaac1a968a6c09c4b851fcef1ab6b58856
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a46d64e5-d941-41e2-b2c7-099687c4112f/
Parent samples :
53304618643cdc79b032becca67d8f5b29e7202ec25e7bb724ce712a03ec6592
fed743ba97ee8b48a3925816de1b2665d2a73bbf3bc75083fb9ade2855afc0ce
817de551d33841a6a6d81e99b4ed25682e796857b694cec79daa45afdb5cede8
af29f1801cb7159de48605410405ecf431646f72d43f739b80822bdab747da9d
335ae169f2389d9434a5b74ac0876d506dc1fe2ae4f8174be8a4ff06f409952b
a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f
f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43
660eb5f2811753c24ecbd5c0e08c68d83d7eca1b2827ed90e2a5189ed61f3a5b
SH256 hash:
a9b9dd5b3026334533297a592465c4b85d04fc64bed66a7ac8aaf7d91341e40a
MD5 hash:
e56e615404ddfc441c20857a11d7583c
SHA1 hash:
0e7a639fc705523faf113cec3ae5fe87af039859
Link:
https://www.unpac.me/results/a46d64e5-d941-41e2-b2c7-099687c4112f/
SH256 hash:
54cc2f05cc4b7df036a882887b0c2c8c80f76376b971214a6deef95a5fce2186
MD5 hash:
91dbebe52ba8d34cf7985bb70abf9af1
SHA1 hash:
74f3e75b6096c5c0c1a5e90f3d370dd1fd8cae92
Link:
https://www.unpac.me/results/a46d64e5-d941-41e2-b2c7-099687c4112f/
SH256 hash:
a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f
MD5 hash:
8f6f8bc43de5fbdddedb774a22e3dca1
SHA1 hash:
3f48029084649e39963710b0ae114b4663d48e68
Link:
https://www.unpac.me/results/a46d64e5-d941-41e2-b2c7-099687c4112f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a52d0bc31a25/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/2384196/
Cape
Cape
https://www.capesandbox.com/analysis/324389/

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