MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440. 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: 15


Intelligence 15 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
SHA3-384 hash: 0f35f55835b5abc4d31b9117abc8eebd657fc8cb4fc308989a64ed8d86d332a146ae0aeb5eceeae33d154ba4bb3bdfb4
SHA1 hash: 6c2b75b917f868b9eeea4d3ea318539e202e39a2
MD5 hash: 6b1dff59a593f5757d96775ca50e7205
humanhash: may-hotel-kitten-cup
File name:Dekont_html.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:800'768 bytes
First seen:2024-02-05 10:17:26 UTC
Last seen:2024-02-05 12:45:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:0Wh868yq0Gg4ryx+6MnWFOdlgGujSegNvLForiBP4/hSr6jPNZ9LkD9c3h:0V68yq0N44wfgMeyLFo8Pd6RM9cx
Threatray 76 similar samples on MalwareBazaar
TLSH T1EE052288B5AC1B47C2BF0BF45651A11243789223D9B3FB19CCC778D9E9A2B944B01B5F
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 lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
280
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Dekont_html.z
Verdict:
Malicious activity
Analysis date:
2024-02-05 08:38:33 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/73fbc419-aa0b-4f7b-8e63-a5102f1961ec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/474660/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65c0b5dd19fc38091421f123/reports/69de5f1b-cac0-40e7-8fa1-2e9e24f7eb22/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cc4dcca0-7bd0-4628-b449-de240b4b30fd
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1386686
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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: 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
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1386686 Sample: Dekont_html.exe Startdate: 05/02/2024 Architecture: WINDOWS Score: 100 42 cp5ua.hyperhost.ua 2->42 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 10 other signatures 2->52 8 TSGOtToLKfzJf.exe 5 2->8         started        11 Dekont_html.exe 7 2->11         started        signatures3 process4 file5 54 Antivirus detection for dropped file 8->54 56 Multi AV Scanner detection for dropped file 8->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Machine Learning detection for dropped file 8->60 14 TSGOtToLKfzJf.exe 8->14         started        17 schtasks.exe 8->17         started        38 C:\Users\user\AppData\...\TSGOtToLKfzJf.exe, PE32 11->38 dropped 40 C:\Users\user\AppData\Local\...\tmp1CCD.tmp, XML 11->40 dropped 62 Uses schtasks.exe or at.exe to add and modify task schedules 11->62 64 Adds a directory exclusion to Windows Defender 11->64 66 Injects a PE file into a foreign processes 11->66 19 Dekont_html.exe 2 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        26 2 other processes 11->26 signatures6 process7 dnsIp8 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->68 70 Tries to steal Mail credentials (via file / registry access) 14->70 72 Tries to harvest and steal browser information (history, passwords, etc) 14->72 28 conhost.exe 17->28         started        44 cp5ua.hyperhost.ua 91.235.128.141, 49713, 49717, 49718 ITLASUA Ukraine 19->44 30 conhost.exe 22->30         started        32 WmiPrvSE.exe 22->32         started        34 conhost.exe 24->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-05 07:45:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eusby7egnzvwlukcel3fdhllx6ob3fspdx4bzus7dljiep5q6raa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
15de6d1a92b4f26a9220a4f8e38d3c774b0f294d311886d23ffd1c99d493d7f0
AgentTesla
25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
AgentTesla
8f9500ab199475ccae799126de8156b316fb9b200e1f3429b7b5b5baece8ab46
AgentTesla
b3c4993a8982b5ef99e1c6064b133a317a221d51a15aa53047b05e340b808b62
AgentTesla
e7e75eae5d4bf17651e97bb0119c666e8db5c4f52fc60e5bf9d3a55155c2dd47
AgentTesla
+ 66 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/240205-mbx4ysfegp/
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
5b723ee80100b140547c31683a1ff4e68f06df93a2c77af44236d2513ce4d42e
MD5 hash:
f34fd05b811be6429eda51c770aff4d4
SHA1 hash:
be05ff8d7311ca4be1da92641b68f153e6d07d69
Link:
https://www.unpac.me/results/e68c143d-fd2f-4e88-8bfc-0f1d63446d85/
SH256 hash:
971c821aa19832e04f1dd44b19cdb909d36d27be2f9e62edd10bf7887a43d15a
MD5 hash:
6d7a285502323918820b8513b5f33d75
SHA1 hash:
9633177bbb29c2563fec4a7dd381f4a278588437
Link:
https://www.unpac.me/results/e68c143d-fd2f-4e88-8bfc-0f1d63446d85/
SH256 hash:
336e9e705854bc5e75fc416b2adbe511c8d43543699f993b396b7e72b723f797
MD5 hash:
f2bca1d28aa09daa02ea4bf8b6392204
SHA1 hash:
4f3a72099fe90ccb7b670376cc89b5158d36bcf1
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/e68c143d-fd2f-4e88-8bfc-0f1d63446d85/
Parent samples :
928981544d9cdcd238de5d584d382470e45afbea75a50194f7d4188c6a41e181
33694dd972ad25df68a2d911d32b9a2797c4319c6e8f17224b332c2d4c6f2bc6
b5deb3a04bc823e2177189360ba4b1cacaf393633d88512a338baccf2a8ac306
bb697fb1969ee65ad80d8eba82424720caace8fca25808d802ba5b4d76d91a6e
7499ea0523bd072c10a0e70e1888c25996a26aa04ea89c016258a0c5b320bdd1
44d6f874279cb00fe35d14f37b18944bdde471ed39732e3ec7cac9aed59039f2
d5d71b4ba13c6a8f154163c71f515dc26f64b61c6849af78e5aadc0356b86f89
e615bd88ac5bd226b4cf4d0893aa6a6ff8b1dfa91bf048218cf8dbba623c2796
15de6d1a92b4f26a9220a4f8e38d3c774b0f294d311886d23ffd1c99d493d7f0
25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
f176b9c927812fa98dc624b2abc3aa614f0ffa69c2bd0a91dc9814e94f88f34b
a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
18df826503335194846ee7331de2fdabaec55d193e96ac07e3be7c79c64da882
SH256 hash:
40a15483af94dce3439bef839b04cfb1df69bff7e778dc5e2f487b704521115b
MD5 hash:
4ea7e6d79ea1ce95df119ff947f04e85
SHA1 hash:
1770bd65fd6c9754e89d02d7d0b8bfc82968ef29
Link:
https://www.unpac.me/results/e68c143d-fd2f-4e88-8bfc-0f1d63446d85/
SH256 hash:
25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
MD5 hash:
6b1dff59a593f5757d96775ca50e7205
SHA1 hash:
6c2b75b917f868b9eeea4d3ea318539e202e39a2
Link:
https://www.unpac.me/results/e68c143d-fd2f-4e88-8bfc-0f1d63446d85/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/25241c7c866e/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/25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440

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: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_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

Executable exe 25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/474660/

Comments