MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4
SHA3-384 hash: 9c46b4c5bd1202b3f6517e76312b18062892593b3588c386edafca556a89f8216963a1cb716d2d8e0ef0201466a42f7f
SHA1 hash: 705ee2c8c612fe8c2b8c7866639a84e33a0d234e
MD5 hash: 6c3df793262b77074e2cf8fd7c3de824
humanhash: bulldog-december-eight-red
File name:T T PROOF ADDING FA Please advise ATD.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:845'312 bytes
First seen:2023-08-22 12:09:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:TTwV2d1mbTdasgDGBBRxI4cOn6EdUk9TbgLPl5zStKSUZU8lwmtxKbKRKoG:TTydTgDG5Kk9fgLPnztZZU8KfEKoG
Threatray 5'554 similar samples on MalwareBazaar
TLSH T180058CC1E2BADBD3D57A53F5206106000FB67EDAB57AD2544DA230DA35F4B402A87A3F
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
T T PROOF ADDING FA Please advise ATD.exe
Verdict:
Malicious activity
Analysis date:
2023-08-22 12:12:17 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/6df51f94-6110-442e-8d96-cdb6a62df54c

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/444151/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4
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/e6ce0003-b8db-4c2f-9ee5-0692c7498411
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1295135
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
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sample uses string decryption to hide its real strings
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1295135 Sample: T_T_PROOF_ADDING_FA_Please_... Startdate: 22/08/2023 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Sigma detected: Scheduled temp file as task from temp location 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 5 other signatures 2->45 7 T_T_PROOF_ADDING_FA_Please_advise_ATD.exe 7 2->7         started        11 AkNxBqNeGfNLa.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\...\AkNxBqNeGfNLa.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmp2E86.tmp, XML 7->33 dropped 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->47 49 Uses schtasks.exe or at.exe to add and modify task schedules 7->49 51 Adds a directory exclusion to Windows Defender 7->51 13 T_T_PROOF_ADDING_FA_Please_advise_ATD.exe 2 7->13         started        17 powershell.exe 20 7->17         started        19 schtasks.exe 1 7->19         started        53 Multi AV Scanner detection for dropped file 11->53 55 Machine Learning detection for dropped file 11->55 21 AkNxBqNeGfNLa.exe 2 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 35 us2.smtp.mailhostbox.com 208.91.199.225, 49722, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->35 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        37 208.91.198.143, 49737, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->37 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->57 59 Tries to steal Mail credentials (via file / registry access) 21->59 61 Tries to harvest and steal browser information (history, passwords, etc) 21->61 29 conhost.exe 23->29         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-08-22 01:40:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
25 of 37 (67.57%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mwmrbep3xaodsyo5sesaffvoaoxmfkko62bn2gkbgtum7x3j7csa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
22f66a34d2354f08b0e4924f3d619d6fa0922adda2827f7e6f588f5855e4258e
AgentTesla
2eaf94da95c7c5bfeee85e0c9b2eeb4203bc708e8538061624082b61866bc3b5
AgentTesla
56262526e4be76814245c822a6b521dbde2c5d3299f0db4bb2bc7b8fdee1e8b5
AgentTesla
5b55637a26181e3420983b78038cedc5b9f3b10ac3cf0b904c6f9195f3b28baa
AgentTesla
90b9761dcd25c9d5b71632aceb036e4f7c66230a1e27fcb98d9a306d2caff7ed
AgentTesla
96df12776607bce40d6ca1c8b9e79ac9b8bc8057ddf91014599e5452896ef4e0
AgentTesla
c0d4dfab211b00bc04b0ef763548fe9cd5d0ab7330546875ef1e29adcf33f800
AgentTesla
d2475c14cd534bca8b3a7a584900668545ed04d7f04c55c0958e05deaec4a7fc
AgentTesla
+ 5'544 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230822-pb1wysca88/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/1ca57991-e38b-41e2-867a-0eb954b9f751/
SH256 hash:
d1674ad53607a79e287d2878b45f260ef4b54ab261a60ed463abc2f18ef30264
MD5 hash:
739f483d8035f7ab0f9e42d9e7759c8b
SHA1 hash:
a6f727e8a92060aa86a2c5005c7abf968889df4d
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/1ca57991-e38b-41e2-867a-0eb954b9f751/
Parent samples :
56262526e4be76814245c822a6b521dbde2c5d3299f0db4bb2bc7b8fdee1e8b5
90b9761dcd25c9d5b71632aceb036e4f7c66230a1e27fcb98d9a306d2caff7ed
96df12776607bce40d6ca1c8b9e79ac9b8bc8057ddf91014599e5452896ef4e0
d2475c14cd534bca8b3a7a584900668545ed04d7f04c55c0958e05deaec4a7fc
22f66a34d2354f08b0e4924f3d619d6fa0922adda2827f7e6f588f5855e4258e
5b55637a26181e3420983b78038cedc5b9f3b10ac3cf0b904c6f9195f3b28baa
65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4
ffa8e6e00d583ef5154e0e33f28d775858e9d71fd8e45247cec4e60e723f8f9f
64db0ce4b48466deb70395bfe2763f916c2cf1f7e967a266dc42484a02c83c1c
SH256 hash:
6b959869f767cbed167d5169ef0f2375ea56e202a0a8ac8dbb8f05cd1eae661e
MD5 hash:
e845de7a4cd00244a0f9446be285469b
SHA1 hash:
9749766f00920445091f6b27306bf09be01c0ae5
Link:
https://www.unpac.me/results/1ca57991-e38b-41e2-867a-0eb954b9f751/
SH256 hash:
29b5195af2eacb899748c85031717e5a49c800c4b2edbe1a7a1a6adde039f2bb
MD5 hash:
fb203901dfdae34dda1f0440e66baebc
SHA1 hash:
5fbea7954174248a238e62c9d72f1e1c1b9e006f
Link:
https://www.unpac.me/results/1ca57991-e38b-41e2-867a-0eb954b9f751/
SH256 hash:
65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4
MD5 hash:
6c3df793262b77074e2cf8fd7c3de824
SHA1 hash:
705ee2c8c612fe8c2b8c7866639a84e33a0d234e
Link:
https://www.unpac.me/results/1ca57991-e38b-41e2-867a-0eb954b9f751/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/65991091fbb8/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/65991091fbb81c3961dd91240296ae03aec2a94ef682dd194134e8cfdf69f8a4

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:NET
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

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/444151/

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