MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57. 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 20 File information Comments
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SHA256 hash: 3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57
SHA3-384 hash: 161ff855ab3771e911331ecdf4bc033c47fc9d72b78eff428ca7ebc5ef5e0d7b084ac5a1818e97a132c559072b5f082e
SHA1 hash: 1285eb211d2ed06f7a3d960f5c39baf1312a0f1f
MD5 hash: 40a0e114a329172f862d6ddc380e4b43
humanhash: golf-rugby-sad-seventeen
File name:rdevuelto_PDF_________________.exe
Download: download sample
Signature Formbook
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File size:768'424 bytes
First seen:2024-01-03 12:20:04 UTC
Last seen:2024-01-08 22:08:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:0wVrnkmFl6Ls73Mg4MT8XTo32URJCIbUiLXgtJN4c:jnt3b8YjUiLo+c
TLSH T1CBF418C9E7415E57D2DE0B73E1E12F4797F0C4A3ABCEE38E1D842BA40D573628909296
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon dadac8dcf0f0d0c2 (1 x Formbook)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
302
Origin country :
BR BR
Vendor Threat Intelligence
Detection(s):
Win.Packed.Seraph-10016137-0
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Win.Packed.Msilheracles-10017859-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Reading critical registry keys
Creating a window
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed packed smartassembly smart_assembly
Link:
https://www.filescan.io/uploads/65955132b4e856b72832a59a/reports/fdb11dd5-a4e2-4e79-8010-02fbd977b916/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57
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:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5f735eb8-b88b-4be0-aeaf-1b6b2aed37a4
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1369241
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2024-01-02 20:18:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ggd3bl7ncll5ichnhf55ajp4cpcg2yt6vteu4icdrjf5ab4oj5lq._file
Verdict:
malicious
Result
Malware family:
zgrat
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Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/240103-pjba9schfq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
fb7c6f4f7e66734d76d75710cfaad78a87b40fe8c6de34419ea7b63b071c28f9
MD5 hash:
e84d267b95b7067d5990e1afb35d86ec
SHA1 hash:
4f567932d0aebabdf9aae13ba4a4337f0b64d376
Link:
https://www.unpac.me/results/d1e3c345-ea0c-4479-a220-05741df1f4ac/
SH256 hash:
f3093b19c5f3a54e18632a5c75f9d2dc559aaa954beb891e1e499f7d820aee78
MD5 hash:
fe6dbdd68a9bee016e1ab59a110a2dac
SHA1 hash:
36d5b2fdbe9e8671a93f8bf32bbc9146dc416377
Link:
https://www.unpac.me/results/d1e3c345-ea0c-4479-a220-05741df1f4ac/
SH256 hash:
3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57
MD5 hash:
40a0e114a329172f862d6ddc380e4b43
SHA1 hash:
1285eb211d2ed06f7a3d960f5c39baf1312a0f1f
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/d1e3c345-ea0c-4479-a220-05741df1f4ac/
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/3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57

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:AgentTeslaV2
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Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:AgentTeslaV3
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
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Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_EXE_Packed_SmartAssembly
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Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MALWARE_Win_AgentTeslaV2
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Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 3187b0afed12d7d408ed397bd025fc13c46d627eacc94e20438a4bd0078e4f57

(this sample)

  
Delivery method
Distributed via e-mail attachment

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