MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9. 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: e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9
SHA3-384 hash: 71edffb082521f6bdf80942b89011b71ed9257d7c89237f0cf5c32a5fc981f756eff4542f9f74890c88deee687f2bf08
SHA1 hash: 5091d1e349398145e930759f4a8b94e74fa08463
MD5 hash: 6f563b356c8dfa9f1798579447e3c171
humanhash: red-mango-oven-island
File name:Invoice Overdue_C0809-H03.xls.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:784'384 bytes
First seen:2023-09-26 07:01:24 UTC
Last seen:2023-09-26 07:36:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:L5wAfK1Aw9zyFwEyC8MO4ujSKsEglxcWwNPV0QKKm9f7t:hwBByfREglYtoKY7
Threatray 5'892 similar samples on MalwareBazaar
TLSH T139F49E2535E66207F492A77F0B53F9584AFA7DAB1125E92B2DC23BC774B2903AD01334
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 3cf8e0eece6c6411 (1 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe payment

Intelligence

File Origin
# of uploads :
2
# of downloads :
300
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Invoice Overdue_C0809-H03.xls.exe
Verdict:
Malicious activity
Analysis date:
2023-09-26 07:02:30 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/197c46cf-495c-4443-ad03-c446e1ce1baf

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/451176/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.6924.29839.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed
Link:
https://www.filescan.io/uploads/651281ec49c6a4ce497e4b8e/reports/e29d7c70-55ff-4dc9-864f-4ad825e18b13/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9
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/843611a1-0144-440f-ba8a-f2a99e672a8b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1314309
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Snort IDS alert for network traffic
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 an obfuscated file name to hide its real file extension (double extension)
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: 1314309 Sample: Invoice_Overdue_C0809-H03.xls.exe Startdate: 26/09/2023 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 13 other signatures 2->58 7 Invoice_Overdue_C0809-H03.xls.exe 6 2->7         started        11 TwxwLJ.exe 5 2->11         started        13 vlflvDv.exe 2->13         started        15 vlflvDv.exe 2->15         started        process3 file4 38 C:\Users\user\AppData\Roaming\TwxwLJ.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmp7760.tmp, XML 7->40 dropped 72 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->72 74 Uses schtasks.exe or at.exe to add and modify task schedules 7->74 76 Writes to foreign memory regions 7->76 78 Injects a PE file into a foreign processes 7->78 17 RegSvcs.exe 17 4 7->17         started        22 schtasks.exe 1 7->22         started        80 Antivirus detection for dropped file 11->80 82 Multi AV Scanner detection for dropped file 11->82 84 Machine Learning detection for dropped file 11->84 24 RegSvcs.exe 3 11->24         started        26 schtasks.exe 1 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 process6 dnsIp7 42 mail.unitechautomations.com 192.185.129.60, 49774, 49776, 587 UNIFIEDLAYER-AS-1US United States 17->42 44 api4.ipify.org 104.237.62.212, 443, 49773 WEBNXUS United States 17->44 46 api.ipify.org 17->46 36 C:\Users\user\AppData\Roaming\...\vlflvDv.exe, PE32 17->36 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->62 64 May check the online IP address of the machine 17->64 32 conhost.exe 22->32         started        48 173.231.16.77, 443, 49775 WEBNXUS United States 24->48 50 api.ipify.org 24->50 66 Tries to steal Mail credentials (via file / registry access) 24->66 68 Tries to harvest and steal browser information (history, passwords, etc) 24->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->70 34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2023-09-26 04:09:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
17 of 34 (50.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5cbuwp7uu5vj4fohuu3i47btakpqut62t2ucvnib6jscmk4pxpeq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1934c9d93e6a4198e68757441c611e6c31306b38aeec33a5f1f6c09f1f8ce466
AgentTesla
480c296502a2e2c8cc03eb4a2bb61e25885e3a83b104399d279d6f6e0f0d44c9
AgentTesla
8f59e0372fb55c7267a21c6a694e643ebdf1629f55f4815d7fc476492d5c7f08
AgentTesla
abe8a963227c2e0dc5889b256d4e390e712a0cfa2f154db2600cce722d118b5e
AgentTesla
b51c0c907444b390504c65e4d688a265f1698e2bcfc8a214ead20ef62f5d685a
AgentTesla
b57506921f2720895173741a012333b7f8b981a58dfa16493088371371b815c3
AgentTesla
d3bb0955fba70ac4492cad770933239688c71f792e38cb51e6ffee38aeae54d9
AgentTesla
+ 5'882 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230926-htr87sfc8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Creates scheduled task(s)
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
c65b7257cda5a5835f49848b5329f997a21cc93a3a164b3b4a5115d2987264f5
MD5 hash:
e84dbdaa6123977556f5ff122fe4172d
SHA1 hash:
ec390528d16173d815b23c633d8800978b802a80
Link:
https://www.unpac.me/results/d3b7b427-5ffa-4e47-9343-e0f96683a959/
SH256 hash:
0b4c93addb0071e4cc368bc5e46a535e2eafd360b5db8b6c87620d7225eade2d
MD5 hash:
e17d9bb18c1bf12de8c75fa570f4cf72
SHA1 hash:
97751a31524557387d136e0e42e204186d00b5dd
Link:
https://www.unpac.me/results/d3b7b427-5ffa-4e47-9343-e0f96683a959/
SH256 hash:
fc2a512233bc2f0d30725f10f7ce46a5acf67971692ca61d8b4c2c3ed6a69fec
MD5 hash:
50cc30f54e48f35e01d634331a2b24f2
SHA1 hash:
464a467739475e1163fd485e565356dfd7dcf88b
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/d3b7b427-5ffa-4e47-9343-e0f96683a959/
Parent samples :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 hash:
e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9
MD5 hash:
6f563b356c8dfa9f1798579447e3c171
SHA1 hash:
5091d1e349398145e930759f4a8b94e74fa08463
Link:
https://www.unpac.me/results/d3b7b427-5ffa-4e47-9343-e0f96683a959/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e8834b3ff4a7/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/e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9

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

7z 304cb6c05237dc7c9ca0907e80409f416c1791b461163f916fcffda08840a513

AgentTesla

Executable exe e8834b3ff4a76a9e15c7a5368e7c33029f0a4fda9ea82ab501f264262b8fbbc9

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 304cb6c05237dc7c9ca0907e80409f416c1791b461163f916fcffda08840a513
Cape
Cape
https://www.capesandbox.com/analysis/451176/
  
Dropped by
MD5 1b8298eca4f53da03cf123cf8c979496

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