MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
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SHA256 hash: 00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc
SHA3-384 hash: 3ad0422ea6341228d9342be866845ec93ecd5c76ef28a98fa3e96464b13885b7f823a9c3c70ead0a997cc3e78c72d02a
SHA1 hash: c31e51bb0dfe0739275dc6bc038ca65183496e54
MD5 hash: 9740ffcabe988f0904286239839fd9b4
humanhash: sierra-jupiter-princess-artist
File name:PO#CR21-1178321.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:690'176 bytes
First seen:2023-11-28 16:40:55 UTC
Last seen:2023-11-28 18:15:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:nqKzd7BR6wTCQYsXJLhNZ9j4M30+umuJcU3SedOQHxjSb/vU29yEpPvoRwKxgvnN:nqKzpBtYsXJLhNjCJcU3SBRb3U29Dv6M
Threatray 469 similar samples on MalwareBazaar
TLSH T1CCE42348736AC763DC7F9BF75161854613F4316A2511F38C2EDA22EF0D2AB601711EAB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
296
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO#CR21-1178321.exe
Verdict:
Malicious activity
Analysis date:
2023-11-29 02:30:42 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/0649df08-25ec-44e2-9200-a29bb71394f7

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/460999/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.23440.29593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Using the Windows Management Instrumentation requests
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6566181f2efa450749ac0ab0/reports/f43f239f-7dff-4654-8f2a-f43ec920379c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc
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/fd2ba58b-beab-4bc1-9ab6-69064ca01015
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1349430
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1349430 Sample: PO#CR21-1178321.exe Startdate: 28/11/2023 Architecture: WINDOWS Score: 100 50 www.shop-pravaonline.online 2->50 52 www.rbxer.com 2->52 54 11 other IPs or domains 2->54 70 Snort IDS alert for network traffic 2->70 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 10 other signatures 2->76 11 PO#CR21-1178321.exe 7 2->11         started        15 tvghbynsxy.exe 5 2->15         started        signatures3 process4 file5 46 C:\Users\user\AppData\...\tvghbynsxy.exe, PE32 11->46 dropped 48 C:\Users\user\AppData\Local\...\tmpF17F.tmp, XML 11->48 dropped 84 Uses schtasks.exe or at.exe to add and modify task schedules 11->84 86 Adds a directory exclusion to Windows Defender 11->86 88 Tries to detect virtualization through RDTSC time measurements 11->88 17 PO#CR21-1178321.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        90 Multi AV Scanner detection for dropped file 15->90 24 tvghbynsxy.exe 15->24         started        26 schtasks.exe 1 15->26         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 17->62 64 Maps a DLL or memory area into another process 17->64 66 Sample uses process hollowing technique 17->66 68 Queues an APC in another process (thread injection) 17->68 28 explorer.exe 6 1 17->28 injected 31 conhost.exe 20->31         started        33 conhost.exe 22->33         started        35 conhost.exe 26->35         started        process9 dnsIp10 56 www.biddrivego.com 103.224.212.216, 49743, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 28->56 58 www.gurubasavschool.com 172.67.157.102, 49744, 80 CLOUDFLARENETUS United States 28->58 60 3 other IPs or domains 28->60 37 mstsc.exe 28->37         started        40 colorcpl.exe 28->40         started        process11 signatures12 78 Modifies the context of a thread in another process (thread injection) 37->78 80 Maps a DLL or memory area into another process 37->80 82 Tries to detect virtualization through RDTSC time measurements 37->82 42 cmd.exe 37->42         started        process13 process14 44 conhost.exe 42->44         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2023-11-27 12:00:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=abjzv7n7j2eytfrbpsuppawnwvyhtiodog7toikl3rptr7ln226a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
273926da6d093735ef6ce3c40741adeb2f0e0259205cda50ace55484a11d06cd
Formbook
27d2b399871c8d36ef2bb51a869cff8360c0bf692b480fbdea85724745475fb9
Formbook
63e6f72454c13a1384aaf3eb5808a8e886bd0fa100ffe633d5d27ae24c5bc1ac
Formbook
685107cecf3e5ac7ad43e40a9fc7d8ea35179a40973938ff74e5813d0a61dffc
Formbook
8ab34111f357482c7c1a01baf14706b2c596945d8657de988344caa1cd66c86d
Formbook
c0c9adadd113fa0b23d67540c920f36c9dd92e392ef2da568771bd5d74b0e29f
Formbook
f3c42aee968cbb44e74f5f1c0d327668532c8d3739f70f02a4ff61ee652a2d31
Formbook
+ 459 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bp31 rat spyware stealer trojan
Link:
https://tria.ge/reports/231128-t64csabe72/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
0327d11a0f4f2e777cee4eaf96e5d2c5e2cac82d700752e819d40ac438e626aa
MD5 hash:
6405c9617e2b82060053339c6731221a
SHA1 hash:
61c44e57231cf7d528ba1b85caa002af1eb1d564
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/52d22fe9-7e8d-48a2-a12b-0c6ecd94dc23/
Parent samples :
685107cecf3e5ac7ad43e40a9fc7d8ea35179a40973938ff74e5813d0a61dffc
00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
Link:
https://www.unpac.me/results/52d22fe9-7e8d-48a2-a12b-0c6ecd94dc23/
SH256 hash:
f5a8f5ded618fd3989fa98a3c2d87c4853d6e10ecb1313cd5ddd7df375336b31
MD5 hash:
243f9990bb7d68a3f6e4d3999800da5b
SHA1 hash:
ba555175d12f19f6288a3574738bcd6c8b747e3b
Link:
https://www.unpac.me/results/52d22fe9-7e8d-48a2-a12b-0c6ecd94dc23/
SH256 hash:
22d0cae1e508638e2213ce7a82f374dfa7f94ed322db63d996b2e9ab465c0988
MD5 hash:
fdb9e7a6c78a791bc127378f8872e256
SHA1 hash:
4357e453c537b4831fd82d88e4711a9a519b22c9
Link:
https://www.unpac.me/results/52d22fe9-7e8d-48a2-a12b-0c6ecd94dc23/
SH256 hash:
00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc
MD5 hash:
9740ffcabe988f0904286239839fd9b4
SHA1 hash:
c31e51bb0dfe0739275dc6bc038ca65183496e54
Link:
https://www.unpac.me/results/52d22fe9-7e8d-48a2-a12b-0c6ecd94dc23/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/00539afdbf4e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 00539afdbf4e898996217ca8f782cdb57079a1c371bf37214bdc5f38fd6dd6bc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/460999/

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