MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187
SHA3-384 hash: b3f81070c90eafda216032d4c7e3561f7dae01ce10875ab757ce59f79ee3ff3e7bd5ac29e4029d4f7f8d4f642121e26c
SHA1 hash: 2da9f1662d721ee5dd32273b45608078b930ad35
MD5 hash: 8dd4adce71cfa1cd8d33eccf4da34043
humanhash: tennis-fish-hamper-east
File name:z21PEDIDODECOMPRAURGENTE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:648'192 bytes
First seen:2024-11-11 12:30:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:PXm0LA8PMyhx7WUh0Mzgn1I9CYeXRU9/YZl/ycoInCRngGo315IeypRxDxD0:PA877WU3En18CYeXq1KL4nv615Ij
Threatray 2'134 similar samples on MalwareBazaar
TLSH T148D4015579A8E592DCDA537D85B1D3BE07764E8E9411C3038FEEBCE73C0AB293908291
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
File icon (PE):PE icon
dhash icon 0cc060ececccc608 (3 x Formbook)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
464
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z21PEDIDODECOMPRAURGENTE.exe
Verdict:
Suspicious activity
Analysis date:
2024-11-11 12:31:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1c9bd9db-b713-47e0-95f1-3d76ab37a231

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.17073.7707.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6731f941af2d3dc89feec467
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6731f90ab3a9c717edb0a7e4/reports/9ed70992-e306-4f8a-9463-a12241ea7b4c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e7e92221-0b07-4fab-b772-113b0ca468a8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1553596
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
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)
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
Tries to resolve many domain names, but no domain seems valid
Uses netstat to query active network connections and open ports
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: 1553596 Sample: z21PEDIDODECOMPRAURGENTE.exe Startdate: 11/11/2024 Architecture: WINDOWS Score: 100 60 www.svp-their.xyz 2->60 62 www.oldier-zjfuu.xyz 2->62 64 9 other IPs or domains 2->64 78 Found malware configuration 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Sigma detected: Scheduled temp file as task from temp location 2->82 86 10 other signatures 2->86 11 z21PEDIDODECOMPRAURGENTE.exe 7 2->11         started        15 mtDSkHtnsz.exe 5 2->15         started        signatures3 84 Performs DNS queries to domains with low reputation 62->84 process4 file5 52 C:\Users\user\AppData\...\mtDSkHtnsz.exe, PE32 11->52 dropped 54 C:\Users\...\mtDSkHtnsz.exe:Zone.Identifier, ASCII 11->54 dropped 56 C:\Users\user\AppData\Local\...\tmpB93B.tmp, XML 11->56 dropped 58 C:\Users\...\z21PEDIDODECOMPRAURGENTE.exe.log, ASCII 11->58 dropped 96 Uses schtasks.exe or at.exe to add and modify task schedules 11->96 98 Adds a directory exclusion to Windows Defender 11->98 100 Tries to detect virtualization through RDTSC time measurements 11->100 102 Switches to a custom stack to bypass stack traces 11->102 17 z21PEDIDODECOMPRAURGENTE.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 23 11->22         started        28 3 other processes 11->28 104 Multi AV Scanner detection for dropped file 15->104 106 Machine Learning detection for dropped file 15->106 108 Injects a PE file into a foreign processes 15->108 24 mtDSkHtnsz.exe 15->24         started        26 schtasks.exe 15->26         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 17->66 68 Maps a DLL or memory area into another process 17->68 70 Sample uses process hollowing technique 17->70 72 Queues an APC in another process (thread injection) 17->72 30 explorer.exe 56 1 17->30 injected 74 Loading BitLocker PowerShell Module 20->74 33 conhost.exe 20->33         started        35 WmiPrvSE.exe 20->35         started        37 conhost.exe 22->37         started        76 Found direct / indirect Syscall (likely to bypass EDR) 24->76 39 conhost.exe 26->39         started        41 conhost.exe 28->41         started        process9 signatures10 110 Uses netstat to query active network connections and open ports 30->110 43 colorcpl.exe 30->43         started        46 NETSTAT.EXE 30->46         started        process11 signatures12 88 Modifies the context of a thread in another process (thread injection) 43->88 90 Maps a DLL or memory area into another process 43->90 92 Tries to detect virtualization through RDTSC time measurements 43->92 94 Switches to a custom stack to bypass stack traces 43->94 48 cmd.exe 43->48         started        process13 process14 50 conhost.exe 48->50         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-11-11 12:31:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zbyjuezlay57w5ditfirsmfvb3ueago4iuqggm5xjtpxakldugdq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
1ca6029a90c9b8fcda0505d239c484552125ba7c4c5b761893f8e39360313212
Formbook
4003ba5752bd4c4969c49c34e65f594c8ae977ee7a06fd96681184308b72d3d3
Formbook
44ab353624b9e867ae31a0523437ed8e321f361d248b471c15bd2902255280f3
Formbook
4ed108b6fefaf7195648ba17ba194f04e8db13cec7e1adeb56ecaafa970f8d21
Formbook
7852d1abd54b4575421c9e18e92afa2c16134d665caaded3ec9715471bdcef6f
Formbook
error
Formbook
f7cfd8a77e099b053a939902b4bc371cf0660070287b7f9f89971181d36be10e
Formbook
+ 2'124 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dn13 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241111-pp2emsyhnj/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
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
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bdcaa51b-52fe-4501-88b4-28211caf87b6
Unpacked files
SH256 hash:
42bd4cbbce74eb4e5ac5726dfb74d789a0b343fe084f1e12802a26c104f1e0cd
MD5 hash:
f17b30f4d2847e3c33d184a26213a495
SHA1 hash:
d2169bc7af4a65bcef24022b15d3bbe4aaa7f047
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/6f52528a-b0bc-422a-84ea-9e0ca4f68251/
Parent samples :
b37b37330f9c4970ca450212d0e3e902fb44110b4570bb07574621354509d045
d72e2b372f10ca73099c02fedf3506ba76ba2aae1719f5bce7c7781454d1eace
1ca6029a90c9b8fcda0505d239c484552125ba7c4c5b761893f8e39360313212
f52a93f8fb6a1b20bd591f6bf9f7d68acfc0e8dd6ea5413faf3619017a3b8166
4ed108b6fefaf7195648ba17ba194f04e8db13cec7e1adeb56ecaafa970f8d21
44ab353624b9e867ae31a0523437ed8e321f361d248b471c15bd2902255280f3
ec66f68731b1c186ac1c87c2520106f85e2a25951303014b9163f51c476846be
69dec355a88f71f9880052143f091580cecd4c6f301c1c6fefe931d44bf8c77d
7852d1abd54b4575421c9e18e92afa2c16134d665caaded3ec9715471bdcef6f
4003ba5752bd4c4969c49c34e65f594c8ae977ee7a06fd96681184308b72d3d3
c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187
b9311758998b5ea517d97a07a4e66a2616ef9395eef50dae210f6246c7fe02ae
1d7608383da2756b65cc19e91419acd47290ee520b76a760bb5089f1738a7778
6968d52cfb23011d71a62b5b5f7a58f98bf287503af1dbb9d13d21998d1de6ed
2efd54686c3942f7778ae4ad63c002e50d1fd2a08fac36ac770dff40cb3e3788
SH256 hash:
ed2e5542ea9317f94e0f6110ed9c503bec28a37135545634e157bd2ad0557e08
MD5 hash:
ffb15a4d319d38094110260d0196123c
SHA1 hash:
72f8f3864fcc04c743a032c200d805889942c28e
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/6f52528a-b0bc-422a-84ea-9e0ca4f68251/
SH256 hash:
131e55d1d754713ee87cdf2e5e0399705098002ecef72826f8dff7c603711248
MD5 hash:
45ff54f4cdc18cbeeb5a3bbe45e4f883
SHA1 hash:
32b3e5c7b7bc9a47ef9ccbd7892eda98220ac10c
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/6f52528a-b0bc-422a-84ea-9e0ca4f68251/
Parent samples :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 hash:
c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187
MD5 hash:
8dd4adce71cfa1cd8d33eccf4da34043
SHA1 hash:
2da9f1662d721ee5dd32273b45608078b930ad35
Link:
https://www.unpac.me/results/6f52528a-b0bc-422a-84ea-9e0ca4f68251/
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/c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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 c8709a132b063bfb746899511930b50ee84019dc45206333b74cdf702963a187

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

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