MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84. 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


AgentTesla


Vendor detections: 17


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

SHA256 hash: b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84
SHA3-384 hash: 603ae7c5bf7201413a42661a2de34cba90dee005c2b4454cea5cb1365d249aae2738e02a788bbb8e23783e6ac893283a
SHA1 hash: ec262c1ae7f23a347c1fc3e11dbf1a6cab4afdb4
MD5 hash: 195f33aa35f6e1999530994b66c73551
humanhash: glucose-nineteen-butter-carpet
File name:Document Transmittal for shipment-xlxs.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:705'536 bytes
First seen:2024-04-30 13:30:11 UTC
Last seen:2024-05-01 17:32:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:92iNzeWFm+QE81Fb/7GcM1NS2J9e+BWCdpQjXJnDwDlXArlHjH9Zc8il0flbznB5:91tRFm+Kzq11E2J4+B/eRShSlxZJilaB
TLSH T114E4234212A92F33DABDA7F05B20051453F77937A195EA374DD061DFAC92B106724BCB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
330
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
RE Shipment Documents LCL 245890055.msg
Verdict:
Malicious activity
Analysis date:
2024-04-30 13:31:50 UTC
Tags:
spam smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/f327ed41-d3b8-418b-ad8b-398f732583ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6630f2a454bafb7d21e74677/reports/0ae1ce81-b5b8-4ad4-ad66-3d4dc42515c2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/50cf56aa-40b2-4d1d-ba9b-2139d1d2f479
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1434127
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
Sigma detected: MSBuild connects to smtp port
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
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/b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-04-30 10:25:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wz5pnzi5ucglu3p6evlo2sxeh42iwftaklvcwr6n6hrjg4jrvoca._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240430-qsc2wsga8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
AgentTesla
Unpacked files
SH256 hash:
a4574419b3dee436b304d308458dd0780480b8f467e56bf4cf1ac83494e241c1
MD5 hash:
398f380fa41216a076c70150db2e3bcd
SHA1 hash:
f12ab0bcb79a224b2f14fb57b1a7eca8984fd4ef
Link:
https://www.unpac.me/results/b9c077c7-7edc-4985-8a36-781c623269da/
SH256 hash:
580ef9d00e320c821e654d883987185b0159ec5f967a72c708e39f96754a21b8
MD5 hash:
a4601fd39dd947a4d379c492364ef193
SHA1 hash:
edf9f917dd7bd42fe1cd3a92acf631266f5a5d15
Link:
https://www.unpac.me/results/b9c077c7-7edc-4985-8a36-781c623269da/
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
Link:
https://www.unpac.me/results/b9c077c7-7edc-4985-8a36-781c623269da/
SH256 hash:
a67da4ec4b8bd15bf959e39933e9d5ea6890012a07324cc7bade185d7405cfb1
MD5 hash:
fd2fe70e4d23e0d743d986593717e269
SHA1 hash:
17afca8ad2d8b5d87c43758ff30585ebc0b2f153
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/b9c077c7-7edc-4985-8a36-781c623269da/
Parent samples :
13044102c3e4f2009818dd287ae2d106f2b5682e4a5ac064edb123d3f7fba44f
1ec8dfd127970aeaa735e42a7484f1329f44953db3c9e52121c778f197157c72
b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84
d6ac0eeecda07bab17a4dde0ed70aae89398fd8a85c5cfc419b3e548711f43d0
7fceea4595b755fbb229e382c964e9ffe917b148348e998c01ad1362f9caed5c
7367eff3b16932de2ac2572e09b905aae4ecb3e7dfd68b73f9a2dd917c03af72
SH256 hash:
b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84
MD5 hash:
195f33aa35f6e1999530994b66c73551
SHA1 hash:
ec262c1ae7f23a347c1fc3e11dbf1a6cab4afdb4
Link:
https://www.unpac.me/results/b9c077c7-7edc-4985-8a36-781c623269da/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b67af6e51da0/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/b67af6e51da08cba6dfe2556ed4ae43f348b166052ea2b47cdf1e2937131ab84

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

  
Delivery method
Other

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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