MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc
SHA3-384 hash: 5b48b17f9ba18754030fbc3eea4673f9dc03fc35ab16e774a76217248a39c73a5360fff3148d6bd6da109e91e08d28c0
SHA1 hash: eb4eb52af6ac0b8f9967faa5709407bd5cb926fc
MD5 hash: df68ea1921ed6f8315958f995d22d94c
humanhash: quebec-india-december-carolina
File name:Shipping Doc Proposed Checklist.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:563'200 bytes
First seen:2023-09-27 05:58:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:5yOXjFNLoroFIHZEklizjhW4oYTV/KzSAcWw:5VXPoroFIikSWFYTx
Threatray 5'767 similar samples on MalwareBazaar
TLSH T114C4BF2532EB2656F036E7B70BABFD4493FEF3F1522AF51A2E87024285E1D00DA12575
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:AgentTesla exe Shipping

Intelligence

File Origin
# of uploads :
1
# of downloads :
261
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Revise Invoice to Euro Currency.rar
Verdict:
Malicious activity
Analysis date:
2023-09-27 05:48:47 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/5a0a4569-2655-4e04-8fa9-8c15d246c3e0

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/451438/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.12661.30342.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed
Link:
https://www.filescan.io/uploads/6513c4a843cd377b1ea0e6b4/reports/9a178eff-3008-4d1e-a96a-9a258e3cece2/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc
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/0d74bfc4-3673-4e45-bcba-1c7ba346ea02
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1314963
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
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1314963 Sample: Shipping_Doc_Proposed_Check... Startdate: 27/09/2023 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Sigma detected: Scheduled temp file as task from temp location 2->47 49 11 other signatures 2->49 7 Shipping_Doc_Proposed_Checklist.exe 6 2->7         started        11 KPYdJslbCy.exe 5 2->11         started        process3 file4 29 C:\Users\user\AppData\...\KPYdJslbCy.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmp58A0.tmp, XML 7->31 dropped 51 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->51 53 Uses schtasks.exe or at.exe to add and modify task schedules 7->53 55 Writes to foreign memory regions 7->55 57 Injects a PE file into a foreign processes 7->57 13 RegSvcs.exe 15 2 7->13         started        17 RegSvcs.exe 7->17         started        19 schtasks.exe 1 7->19         started        59 Antivirus detection for dropped file 11->59 61 Multi AV Scanner detection for dropped file 11->61 63 Machine Learning detection for dropped file 11->63 21 RegSvcs.exe 2 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 33 api4.ipify.org 173.231.16.77, 443, 49789 WEBNXUS United States 13->33 35 sh003.webhostbox.net 162.241.27.12, 49790, 49792, 587 UNIFIEDLAYER-AS-1US United States 13->35 37 api.ipify.org 13->37 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->65 67 May check the online IP address of the machine 17->67 25 conhost.exe 19->25         started        39 104.237.62.212, 443, 49791 WEBNXUS United States 21->39 41 api.ipify.org 21->41 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->69 71 Tries to steal Mail credentials (via file / registry access) 21->71 73 Tries to harvest and steal browser information (history, passwords, etc) 21->73 27 conhost.exe 23->27         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-09-26 05:14:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 38 (60.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qn2iuwwgnvvfhvwhd2x2bpd5ukcuno2ywyh5e67n2fmhgcceu3oa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
08552fc7c1fcdb754d81dad78184ad191d0585b970a1b633cef88ce63804947e
AgentTesla
25f455f936fb8836b363683c409396ce338b6a38b92da08ebe7b7442be710fb5
AgentTesla
48e030cc0ca1af0e027949d1f16b86226e352065d9bf5eba4ca7719efe61b0cf
AgentTesla
75928078ee7371de911070ffee3d0eb2abe327490006ae659534672827a19681
AgentTesla
83e202c299d139b909d80f39e81487515d2f21a9a0b6546f42dbd194088e07e7
AgentTesla
8ceb54467845b5f7b8d94495e26b7d734502fe75aae49ab69157eec471a262f4
AgentTesla
974ca7ad435352579a6080a0437db8fb96a3cc0627799820cbe3aac2fd0a6a0f
AgentTesla
db44e1da719b971f2fb5919d535170aab2779e13ab8db9e04e054c6efd4dff65
AgentTesla
+ 5'757 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/230927-gpqn5sgc71/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
0b4c93addb0071e4cc368bc5e46a535e2eafd360b5db8b6c87620d7225eade2d
MD5 hash:
e17d9bb18c1bf12de8c75fa570f4cf72
SHA1 hash:
97751a31524557387d136e0e42e204186d00b5dd
Link:
https://www.unpac.me/results/42a06f62-b762-4b11-aebc-89d9e57eaf03/
SH256 hash:
77d0a15aa311d024d9bc81854b8f0125e22b03e3310d09efe9c69f86300b48c1
MD5 hash:
7325134f63db58cb2d63f66ff88a7a0e
SHA1 hash:
8466563fd947299f1fbd9947898ad0657021ae51
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/42a06f62-b762-4b11-aebc-89d9e57eaf03/
Parent samples :
83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc
7576e8a511b554c10cbb9af84a0e764f2c22e05bbeb04747ffc773aa39e0590d
674a748111a6ce0179d7282aec3a9b3da359f024c4206f61876a78261e65c19d
91a10a6ddbdd84c582c2cd618a659bee55d9da5f6b8a4b94241069958a710951
SH256 hash:
1e9088495cba82e5dd0ec6458dc4e40ccea1b4d684af2d974d13852ccc367167
MD5 hash:
617ff5a9a1eb26cb4cc4c170a225f1a9
SHA1 hash:
0c1da24d466021b8efdb8a3c1bb7947865f4a35e
Link:
https://www.unpac.me/results/42a06f62-b762-4b11-aebc-89d9e57eaf03/
SH256 hash:
83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc
MD5 hash:
df68ea1921ed6f8315958f995d22d94c
SHA1 hash:
eb4eb52af6ac0b8f9967faa5709407bd5cb926fc
Link:
https://www.unpac.me/results/42a06f62-b762-4b11-aebc-89d9e57eaf03/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83748a5ac66d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.48
Link:
https://yomi.yoroi.company/submissions/83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc

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: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

File information

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

Malspam

AgentTesla

rar cbaef8cbbbec4f2bb98702a06f92dc544e51561cc7ffb08dc76454d6bc2131fa

AgentTesla

Executable exe 83748a5ac66d6a53d6c71eafa0bc7da28546bb58b60fd27bedd158730844a6dc

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 cbaef8cbbbec4f2bb98702a06f92dc544e51561cc7ffb08dc76454d6bc2131fa
Cape
Cape
https://www.capesandbox.com/analysis/451438/
  
Dropped by
MD5 cb883c6460ffb7c6640dc352104bebeb

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