MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5
SHA3-384 hash: 6fd7c5563d3ba606f2abd309b04c0052a7ca0d9279ae923ef0eb136449d49d7906c9bb8de5769ee4954d8854d659fe8e
SHA1 hash: 04539c32d3d6ccde27c1be758590509f9a31871b
MD5 hash: d6d81d003304d602eadbb4e22ffb6d46
humanhash: winner-iowa-queen-orange
File name:kb58O3Z12XJuOHc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:931'840 bytes
First seen:2020-10-17 06:48:58 UTC
Last seen:2020-10-17 08:03:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'813 x AgentTesla, 19'735 x Formbook, 12'282 x SnakeKeylogger)
ssdeep 24576:u3RyS4fCIYvdIB7nhjpBFCdqZWk1781yP:A9JvghjNCw4k61yP
Threatray 10'195 similar samples on MalwareBazaar
TLSH 2F15DF1122A49F19F4BDA77A5032611097F1B9B3E338C20D6EE826DD1976F44D7B2F22
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: webmail.cyber.net.pk
Sending IP: 203.101.175.37
From: The Management <asmovers@cyber.net.pk>
Reply-To: Ericgillis60@gmail.com
Subject: NEW OFFER No PO_821557
Attachment: NEW OFFER No PO_821557.Doc.z (contains "kb58O3Z12XJuOHc.exe")

AgentTesla SMTP exfil server:
smtp.karhteck.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72459/
Detection(s):
SecuriteInfo.com.ArtemisD6D81D003304.25987.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494303
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5/
Threat name:
Win32.Trojan.Bluteal
Create hunting rule
Status:
Malicious
First seen:
2020-10-17 02:00:06 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yh3bo3zhhqribjeiocvnqojakeeosgrirsgmhjx3fbibzg32p2sq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
03035f39055dc379e10a3f7a79092877c022272c9fb14116c44bd9d3ed637655
AgentTesla
0ca1f0a08b7a21079683beeaf8bfa86df3d396b8d7a0cade52e963b78bd9a7e3
AgentTesla
2c6aa8d5fd233661b6d8c0130af1a0c63539aae4c05fb03d74859ebeec3b7cc6
AgentTesla
35912ff3b78d0699082450202cc16cec5c11447c39ec0e4db7738c188662f0c5
AgentTesla
4aba472bffc408315c06d8d015ac5241175d6ccfea8c3c04065ba64eccd94cfb
AgentTesla
5eff8146838a95a421d926b71fdf0a78a67d822978e0cfb00a5d8e4d24b4f983
AgentTesla
625ac07dbfbb4f928f5acc8bfb5b9c6f92b155d37b501bc9a41ad0af8e7b9010
AgentTesla
8dca506f397a02a7dced3a515980d4eca9a2a05a0f30e8e2205cc26aa44138b1
AgentTesla
aae624caec254144105749a9b12bde61f77415ce28c9f28cc2bfebf0fcbff1f9
AgentTesla
fb98803c42920bc5019d764153010c64f12bc6543e2a1a9e1378185b4e434edc
AgentTesla
+ 10'185 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/201017-zh566a2grj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5
MD5 hash:
d6d81d003304d602eadbb4e22ffb6d46
SHA1 hash:
04539c32d3d6ccde27c1be758590509f9a31871b
Link:
https://www.unpac.me/results/920f2ff3-cabd-4f8a-a04d-3898d2a4ca37/
SH256 hash:
f2c6ad34e3265f68bd3e28db965275ea7be02e62e0eadbde0114ba562c225f91
MD5 hash:
f4a459e988ffa95494707177f683b32d
SHA1 hash:
2108a52737df2ad3bdc7e022d57e7a6d2ec56ec4
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/920f2ff3-cabd-4f8a-a04d-3898d2a4ca37/
Parent samples :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 hash:
1950fe594f690a98c563ea2e0b234cc36abca6893afa4a0547c5ae0d8bb3de65
MD5 hash:
b0b53dfdf2a13f0bd2bed1d645ecdc3a
SHA1 hash:
6353cb01cb103f415c26239bf008c08435144838
Link:
https://www.unpac.me/results/920f2ff3-cabd-4f8a-a04d-3898d2a4ca37/
SH256 hash:
3d9846faa7b00c02bd451c1e88b1fadfb2f2fa8a4f80f6566e0af562b44e123f
MD5 hash:
99fb05cf5264ef8c80a952b9175059f5
SHA1 hash:
899ce66a96a26ef76f5e8bd75ed43e208ea172b9
Link:
https://www.unpac.me/results/920f2ff3-cabd-4f8a-a04d-3898d2a4ca37/
SH256 hash:
069cb70392e20bc02cfd63c8a9f92a43c26e03399a046f76193c863472b5f400
MD5 hash:
38e89b4134e81fa68399a094183f8b7c
SHA1 hash:
9b2e4a947cc644d3107d4fec9679727a7735c959
Link:
https://www.unpac.me/results/920f2ff3-cabd-4f8a-a04d-3898d2a4ca37/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5

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:AgentTesla_extracted_bin
Create hunting rule
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

zip 1370f59be38814d04ae78dd416e51cc15fa9ab68d79b40b2d51880a98ee22913

AgentTesla

Executable exe c1f6176f273c2280a48870aad839205108e91a288c8cc3a6fb28501c9b7a7ea5

(this sample)

  
Dropped by
MD5 e6fcf22d45a91aa4c0ed00d29cc274ed
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72459/
  
Dropped by
SHA256 1370f59be38814d04ae78dd416e51cc15fa9ab68d79b40b2d51880a98ee22913

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