MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90
SHA3-384 hash: 61338660a70ca82478776695dfb622637682d7b245982a6fa60f72705e495b1813d62445d97fb38d523183c5c48e7302
SHA1 hash: 404027e2d1d84320724bf355fba6499a27ca2a04
MD5 hash: 5996a4f8cf3cb285f8989b41123d97fb
humanhash: summer-harry-virginia-chicken
File name:file30028.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:815'104 bytes
First seen:2023-09-04 13:25:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:vsxok6ZE6R1BQfX6JHy0jhYebu8HXR8l:3ZEEQfwy2bu83W
Threatray 5'580 similar samples on MalwareBazaar
TLSH T1F505A503BA9786B2E589173EC5EB0C340770E9A17293F70A75CA135958437B76EC8E0B
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file30028.exe
Verdict:
Malicious activity
Analysis date:
2023-09-04 13:27:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3c4593b9-b778-44e7-bd7e-7e63cc649976

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/446073/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.5044.1440.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin packed
Link:
https://www.filescan.io/uploads/64f5daea26412fcb9d98e0ab/reports/9f0f74a4-f2de-4768-9c6a-00eae74dbaf1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/732f7524-cfd9-4b8e-97f5-03fa90f20705
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1302969
Signature
.NET source code contains potential unpacker
Drops VBS files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
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: Drops script at startup 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 steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1302969 Sample: file30028.exe Startdate: 04/09/2023 Architecture: WINDOWS Score: 100 34 discord.com 2->34 36 web.fe.1drv.com 2->36 38 3 other IPs or domains 2->38 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 7 other signatures 2->60 9 file30028.exe 15 6 2->9         started        13 wscript.exe 1 2->13         started        signatures3 process4 file5 30 C:\Users\user\AppData\Roaming\Pwtamwbg.exe, PE32 9->30 dropped 32 C:\Users\user\AppData\...\Pwtamwbg.vbs, ASCII 9->32 dropped 66 Drops VBS files to the startup folder 9->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->68 70 Writes to foreign memory regions 9->70 72 Injects a PE file into a foreign processes 9->72 15 MSBuild.exe 14 2 9->15         started        74 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->74 19 Pwtamwbg.exe 14 5 13->19         started        signatures6 process7 dnsIp8 40 discord.com 162.159.128.233, 443, 49767, 49772 CLOUDFLARENETUS United States 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file / registry access) 15->44 21 WerFault.exe 30 17 15->21         started        46 Multi AV Scanner detection for dropped file 19->46 48 Machine Learning detection for dropped file 19->48 50 Writes to foreign memory regions 19->50 52 Injects a PE file into a foreign processes 19->52 23 MSBuild.exe 19->23         started        26 MSBuild.exe 19->26         started        signatures9 process10 signatures11 62 Tries to steal Mail credentials (via file / registry access) 23->62 64 Tries to harvest and steal browser information (history, passwords, etc) 23->64 28 WerFault.exe 23->28         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-28 02:49:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yz346xhejsi43xfzm27xvrfa7a5dvlulinozix6a3xmx3pvod6ia._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1ad099ae47a44058fd883aef2e9032b857d2f78b4f14c4ce606f2870b4ec062a
AgentTesla
41cc436ff239f814a313cea6f211b9bd91e8aff835f5f3bf2ed0ccefbd324149
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571ae8e686b2690a1448a466ad229976f5f0f271969dc507c586174dc4c83cb8
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5f4896ab53539a862055102c4433ae9ba78220915a2358552ab7d5ec081a68d0
AgentTesla
6e85ae5489a02c4209e4eb062b52e6dece076e12663e7aaa2e8e497664643a8d
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a04182cb18b9bba60134d31518fef14b138c40a631bd09c098a7cdd875f7daa2
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a37c009a14513400e1703af1bd68355a4f9174898eb1af7e1e51bd9acdc0f55d
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b721ad1095cc2da03c67056a937f57372d28029bc5556d037364fd9c77bae3fb
AgentTesla
d8ed3fb0de9b294adf3d48b7149010d51b01a9f9b262581aff015f1318999671
AgentTesla
f740661d5fc2e451c509753bc9654acd8710de426bf01a7c4b39876d9fa52ea0
AgentTesla
+ 5'570 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230904-qphg7sgg38/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Drops startup file
AgentTesla
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1131826293713944656/-VNJZXImBb75wVkctlmy5g8RwXn39oGg1V4TJGzaTekFo9aOonRwBo3PfJCFksErtEoA
Unpacked files
SH256 hash:
c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90
MD5 hash:
5996a4f8cf3cb285f8989b41123d97fb
SHA1 hash:
404027e2d1d84320724bf355fba6499a27ca2a04
Link:
https://www.unpac.me/results/d7a21686-c183-4060-8d75-b451d822234b/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c677cf5ce44c/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/c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90

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.

Malspam

AgentTesla

Executable exe c677cf5ce44c91cddcb966bf7ac4a0f83a3aae8b435d945fc0ddd97dbeae1f90

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/446073/

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