MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477. 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: a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
SHA3-384 hash: 3107c64256b884c8f526d74478fb39f215714fed5ccc1bdf4e508a90e9be71b6eecd3b5d204aa5cc37b02bf91a5d6f72
SHA1 hash: 3460e309dd3ca32633a6edda348b190c5070e77c
MD5 hash: dc8ed4f9f3f6cc0d57d2aa7b1ac5f23f
humanhash: virginia-asparagus-magazine-robin
File name:SecuriteInfo.com.Trojan.MSIL.Krypt.2433.31957
Download: download sample
Signature AgentTesla
Create hunting rule
File size:736'768 bytes
First seen:2024-02-20 02:00:43 UTC
Last seen:2024-02-20 19:19:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:QXD8/0ExKjx2yVIFK6DfTydxjWRdHXqyJalKazEzj4Yug+yZvW4CHc+KW+Ke3k+F:y/vaT71dHXjalKazjgTQ7Dh5e3hPR+
Threatray 514 similar samples on MalwareBazaar
TLSH T1EDF4231073FABF18C27D93F29C2A64A113E67E67E669E14A4EC536F81516B500CD0F2B
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)
File icon (PE):PE icon
dhash icon 3000327171b20030 (3 x AgentTesla)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
315
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477.exe
Verdict:
Malicious activity
Analysis date:
2024-02-20 02:01:14 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/6ecf063d-88e6-4734-844e-3ed1de827525

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/476885/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.MSIL.Krypt.2433.31957.UNOFFICIAL
Create hunting rule

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
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d407df03a1c3a7aef1c067/reports/d62e665c-844f-44e6-8ce1-dd5779a6965c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7ebc47cc-56ad-4a23-974a-7583aff522db
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1394921
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
Installs a global keyboard hook
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
Snort IDS alert for network traffic
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: 1394921 Sample: SecuriteInfo.com.Trojan.MSI... Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 42 mail.elec-qatar.com 2->42 44 api.ipify.org 2->44 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 12 other signatures 2->56 8 SecuriteInfo.com.Trojan.MSIL.Krypt.2433.31957.exe 7 2->8         started        12 bJRjUAyavyL.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\bJRjUAyavyL.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp59E3.tmp, XML 8->40 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 Writes to foreign memory regions 8->60 62 Allocates memory in foreign processes 8->62 64 Adds a directory exclusion to Windows Defender 8->64 14 RegSvcs.exe 15 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        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 46 mail.elec-qatar.com 50.87.139.143, 49709, 49713, 587 UNIFIEDLAYER-AS-1US United States 14->46 48 api.ipify.org 104.26.13.205, 443, 49708, 49712 CLOUDFLARENETUS United States 14->48 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->72 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->74 76 Tries to steal Mail credentials (via file / registry access) 24->76 78 Tries to harvest and steal browser information (history, passwords, etc) 24->78 80 Installs a global keyboard hook 24->80 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-02-19 23:45:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=um4j2qq22z7am2fvrpfhgwc24zaqi7rltmgxtadaxfxuvudeqr3q._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
1bf711744adbf1b2de0f3fb5d8abb2966018b61fa5b248de1ba6aaaac8bb681a
AgentTesla
39711f9ed69e976f7d9ef46eb054961108e4bf50cb0d325224cf49cad65c0844
AgentTesla
4af4e807a39641a52d870358fa8b6486927f7f5daeb94a2a75d9e117ba41a3ea
AgentTesla
5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87
AgentTesla
900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
AgentTesla
aec212c8fd71db1a982c117129c0ecf7ba0323644d339e8c8e3bb222b96505c6
AgentTesla
+ 504 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240220-cfjr1shc4t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/74d5ad56-fde4-4721-b589-787218f68bcd/
SH256 hash:
7bdb5f129f10480a949e97d861dc2ed716b5df47edceb845a6c71d36deb6c672
MD5 hash:
51cfd331a61dd70601f9d974af6daafa
SHA1 hash:
a0bba8f5df2b2f719f638fa63b07106c1dd40766
Link:
https://www.unpac.me/results/74d5ad56-fde4-4721-b589-787218f68bcd/
SH256 hash:
8b3ab238b122d29b6d0eea5c4dc9e85b81c7a1b1f8afcebebd81b93498bf54f6
MD5 hash:
e5b0bf84fe7a139f42e19ad27dcea78f
SHA1 hash:
7e18c0c607c51e06f559c9f5d90a93531b60ee3c
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
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/74d5ad56-fde4-4721-b589-787218f68bcd/
Parent samples :
a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
2c42f0b638e46ffc233200f45ca9436c78fb424fc409574512774dfd3a0621a6
232dda5f15f635e041afce6e34f17ba284380475a14232e85856065bdd78f0be
b9008d07600af358e885fe396b52bbc6efbc135f7010e6aa6849c3af952dd9fb
5857b336d7d9853e12a8396380a452b1ea5c390a0409fb58ee6e7e77d9aabe00
SH256 hash:
06e657f27dec7d4238de33bccffe2afe0ddeb0db34b1b67c9824784dc4c2ab0b
MD5 hash:
4e889cbaa7a03d4d3c31d6ef203ad840
SHA1 hash:
7b2723a8cbfa237773b733fd59c8445ea9e3356b
Link:
https://www.unpac.me/results/74d5ad56-fde4-4721-b589-787218f68bcd/
SH256 hash:
a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
MD5 hash:
dc8ed4f9f3f6cc0d57d2aa7b1ac5f23f
SHA1 hash:
3460e309dd3ca32633a6edda348b190c5070e77c
Link:
https://www.unpac.me/results/74d5ad56-fde4-4721-b589-787218f68bcd/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3389d421ad6/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/a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477

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: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_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.

Malspam

AgentTesla

zip c6897ccf3668d126a43e5cc0a320d8c8c9479d20d44433eef54030f8e60af8ca

AgentTesla

Executable exe a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/476885/
  
Dropped by
SHA256 c6897ccf3668d126a43e5cc0a320d8c8c9479d20d44433eef54030f8e60af8ca
  
Dropped by
MD5 9d63149a9c2681c9aba39913522dbab8

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