MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea. 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 14 File information Comments
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SHA256 hash: 4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
SHA3-384 hash: c6f4699513e4fca0fe7b2351957f826f05735b75b8ceefb81a3274e1c0d97819986cfc1bea52995adbc0f157707979ab
SHA1 hash: d206666a51a7545003eae0c397637e884b3c5daf
MD5 hash: cf2184e9a142074e80ce4de7c4ff9976
humanhash: magnesium-illinois-red-uranus
File name:New POs# ST-2312180.exe
Download: download sample
Signature AgentTesla
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File size:683'008 bytes
First seen:2024-02-19 14:45:09 UTC
Last seen:2024-02-19 16:34:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:tSmPwRYnOELz89vqTXKOPgT4PnckwNtSs5hfayvJrsJVkaOvC:tSmP0Y74vM6akXNtSU5TvJrs/jZ
TLSH T1C9E4220491FD8B72E9B857F085344688D7F0B4659203F75C1E86E2DB96ABF1017A2F83
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
377
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea.exe
Verdict:
Malicious activity
Analysis date:
2024-02-19 14:47:38 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/587cb6d6-3772-4ddd-8bee-68289008bfb2

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/476822/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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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
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d369af22703c3491a5e2bb/reports/63a07355-3864-4392-a9c4-ffdbde9cc7f8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
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/98cc142d-16a4-4115-a737-28fa640e7f3a
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/1394621
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1394621 Sample: New POs# ST-2312180.exe Startdate: 19/02/2024 Architecture: WINDOWS Score: 100 42 us2.smtp.mailhostbox.com 2->42 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 13 other signatures 2->52 8 New POs# ST-2312180.exe 7 2->8         started        12 uhnytJebsnQ.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\uhnytJebsnQ.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmpD169.tmp, XML 8->40 dropped 54 Writes to foreign memory regions 8->54 56 Allocates memory in foreign processes 8->56 58 Adds a directory exclusion to Windows Defender 8->58 14 RegSvcs.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        60 Multi AV Scanner detection for dropped file 12->60 62 Machine Learning detection for dropped file 12->62 64 Injects a PE file into a foreign processes 12->64 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 44 us2.smtp.mailhostbox.com 208.91.199.225, 49714, 49718, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->44 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->68 70 Tries to steal Mail credentials (via file / registry access) 14->70 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        72 Tries to harvest and steal browser information (history, passwords, etc) 24->72 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-02-19 10:54:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jl2oqb5dsza2klmhanmpvc3eq2jh6725v24uuktv3hqrposbupva._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240219-r5amzaeb9w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
bdfd140245602d80270a0d8a22d6ddb7c92f1428d64059ad69b535ccf3e03666
MD5 hash:
971d60156c1e3b4c91697f84759553cd
SHA1 hash:
dfb01c6c79b63b3eda96fd6a957669c7b16c2c3c
Link:
https://www.unpac.me/results/803d32e9-1a30-47dd-a8d4-61b0f50c7e1b/
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/803d32e9-1a30-47dd-a8d4-61b0f50c7e1b/
SH256 hash:
3db113b30559b568c5f1899caf80807317e6d5f2a9611226e03bf8ea0411242d
MD5 hash:
ab292f300a0f845fb35212c921eb46f5
SHA1 hash:
d6f83ea0f89db5d7cd46738598242f1cdbbed39a
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/803d32e9-1a30-47dd-a8d4-61b0f50c7e1b/
Parent samples :
c907b5ee8b9aae5ad661042f2aed0338df90653b95dad072ef8d8c0b582bc46b
4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
SH256 hash:
06e657f27dec7d4238de33bccffe2afe0ddeb0db34b1b67c9824784dc4c2ab0b
MD5 hash:
4e889cbaa7a03d4d3c31d6ef203ad840
SHA1 hash:
7b2723a8cbfa237773b733fd59c8445ea9e3356b
Link:
https://www.unpac.me/results/803d32e9-1a30-47dd-a8d4-61b0f50c7e1b/
SH256 hash:
4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
MD5 hash:
cf2184e9a142074e80ce4de7c4ff9976
SHA1 hash:
d206666a51a7545003eae0c397637e884b3c5daf
Link:
https://www.unpac.me/results/803d32e9-1a30-47dd-a8d4-61b0f50c7e1b/
Malware family:
AgentTesla
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4af4e807a396/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/4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
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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
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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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
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:NET
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/476822/

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