MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55. 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: 19


Intelligence 19 IOCs YARA 7 File information Comments
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SHA256 hash: 8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55
SHA3-384 hash: 86b434d621f6915483d446730e43b8883c91124527e84b4598cb13e5323580bdb0372363474fa7b0f7690e839d571265
SHA1 hash: 7e3a2168dfe07c8375072e2fa8ed82264f2f65e2
MD5 hash: d3d6dbe6b5aab659775fa5c2cb2022b2
humanhash: double-six-mars-mississippi
File name:pvu2PgsWRqg7iP4.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:915'976 bytes
First seen:2025-05-27 13:55:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:qIGTFA29QfwZsghED0hq1lI0yCwh0LL8au3S2SQbIxJsBIJHcBzMXVi6T6ekR:qJ1a0H0LwCX85GQbIIqIgFzTO
Threatray 2'628 similar samples on MalwareBazaar
TLSH T15B151B2531FB1252C472E7E30BEBF9B69BBEF131212DF539299312C647A5F019982136
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
444
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
pvu2PgsWRqg7iP4.exe
Verdict:
Malicious activity
Analysis date:
2025-05-27 13:58:24 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/ac444ded-871a-479a-aff4-879065c72d16

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/5853/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3148.22806.29599.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6835c625668438e362e7704e
Tags:
virus krypt msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
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:
expired-cert invalid-signature obfuscated packed signed vbnet
Link:
https://www.filescan.io/uploads/6835c47e2d1d8b12425d871f/reports/eaba850c-dc0b-4fc6-b016-676fb73305c2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/779add57-63ad-4795-adca-28057d54b9a2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1699863
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Uses threadpools to delay analysis
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699863 Sample: pvu2PgsWRqg7iP4.exe Startdate: 27/05/2025 Architecture: WINDOWS Score: 100 59 www.aplayplinko.xyz 2->59 61 www.4wdlhwuzw.xyz 2->61 63 4 other IPs or domains 2->63 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Sigma detected: Scheduled temp file as task from temp location 2->79 83 9 other signatures 2->83 11 pvu2PgsWRqg7iP4.exe 7 2->11         started        15 rmPEDFjxLNDe.exe 5 2->15         started        signatures3 81 Performs DNS queries to domains with low reputation 61->81 process4 file5 51 C:\Users\user\AppData\...\rmPEDFjxLNDe.exe, PE32 11->51 dropped 53 C:\Users\...\rmPEDFjxLNDe.exe:Zone.Identifier, ASCII 11->53 dropped 55 C:\Users\user\AppData\Local\...\tmp5966.tmp, XML 11->55 dropped 57 C:\Users\user\...\pvu2PgsWRqg7iP4.exe.log, ASCII 11->57 dropped 93 Uses schtasks.exe or at.exe to add and modify task schedules 11->93 95 Writes to foreign memory regions 11->95 97 Allocates memory in foreign processes 11->97 99 Adds a directory exclusion to Windows Defender 11->99 17 vbc.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 22 11->22         started        24 schtasks.exe 1 11->24         started        101 Multi AV Scanner detection for dropped file 15->101 103 Injects a PE file into a foreign processes 15->103 105 Uses threadpools to delay analysis 15->105 26 vbc.exe 15->26         started        28 schtasks.exe 15->28         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 73 3 other signatures 17->73 30 explorer.exe 41 1 17->30 injected 71 Loading BitLocker PowerShell Module 20->71 32 conhost.exe 20->32         started        34 WmiPrvSE.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 28->40         started        process9 process10 42 svchost.exe 30->42         started        45 mstsc.exe 30->45         started        signatures11 85 Modifies the context of a thread in another process (thread injection) 42->85 87 Maps a DLL or memory area into another process 42->87 89 Tries to detect virtualization through RDTSC time measurements 42->89 91 Switches to a custom stack to bypass stack traces 42->91 47 cmd.exe 42->47         started        process12 process13 49 conhost.exe 47->49         started       
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 09:05:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6klclv4pgwna566o4ktgy5454qapksogik5bmffgikwxcqvvzkq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
05d3f3857ab465a1886005e6d6138c84b8c19447b71d1781e8169e48c371c0a3
Formbook
356dd4d1abe930b8189e5d5a1870c6a70236a12db73b24c19d0e461056c15dfa
Formbook
54f50cdad3e5039d3207566e1b9de6e16913993ba2aa711e6f91a68e093ed9c4
Formbook
8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
Formbook
c21657a9253431b91837bc2089fde8e909f780b5736dd44263e54765d95dfb9d
Formbook
e9a1f5e4de3dfdf6cbd66863a6fa6a638cce8fa9555991756820b5af48682c79
Formbook
eba602f26ca14d5e494059001ecf363110ba504d9e0184b8abfa45905bd650cc
Formbook
fe425f034245df80aa7de7f613c39ecc9801077ccb38d23f153ba9076c1e6f35
Formbook
+ 2'618 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi26 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250527-q8rj8at1dx/
Behaviour
Scheduled Task/Job: Scheduled Task
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
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/299d45e6-c31f-4f90-9720-070c99898d7d
Unpacked files
SH256 hash:
8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55
MD5 hash:
d3d6dbe6b5aab659775fa5c2cb2022b2
SHA1 hash:
7e3a2168dfe07c8375072e2fa8ed82264f2f65e2
Link:
https://www.unpac.me/results/724360f4-b62f-4b8b-8673-3880f97311f0/
SH256 hash:
a4002a41088aba3178c8779a4388f40896543f0d5694562729e66f5e4dd899fd
MD5 hash:
6e0c8d849a1ae2b9cfa9ea70e7a0cd57
SHA1 hash:
24a5e2eea493aafd31f48b0b93e534aaf757db4f
Link:
https://www.unpac.me/results/724360f4-b62f-4b8b-8673-3880f97311f0/
SH256 hash:
d1fadf89460e98fdb843ad010742ccba52c12f70822b9959132b0a5f122dd1f2
MD5 hash:
abd3fd6ba4f990759c82ee5e8f1bd879
SHA1 hash:
8b7364dccdf68d606d64cf4f0d3b3f79f4cac64c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/724360f4-b62f-4b8b-8673-3880f97311f0/
SH256 hash:
78ce5985f2ff20719b2924f128206c43d71af6eca0c88fdabeecbfef63057741
MD5 hash:
6440b1f79d6f8a2c00a8397e463becf2
SHA1 hash:
b11cecafb882f82c5fc59d60466baf0ad5dbac30
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/724360f4-b62f-4b8b-8673-3880f97311f0/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8794b12ebc79/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/8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe 8794b12ebc79acd077de77153363bcef2007aa4e3215d0b0a532156b8a15ae55

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/5853/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments