MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff
SHA3-384 hash: b48d2fe14543460055f2efffde2a0d8c5b1dcb924aec8d80b903c8850bfb950b8a3fe5c35cf61fad1614d18d006121ac
SHA1 hash: 39335fcf35520de04e33523c43f8fea23125484f
MD5 hash: f1e1efbc90e741f9e20373154e63114d
humanhash: sink-muppet-wisconsin-may
File name:f1e1efbc90e741f9e20373154e63114d.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'279'432 bytes
First seen:2021-01-11 18:21:01 UTC
Last seen:2021-01-11 20:43:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:+3FOTiexrkbKNCTEb+pKdfTNj6ujXn2gpirodKpQR91hgE605iZt:+3ERxryK4TEiIdbNjRiro8e760gH
Threatray 140 similar samples on MalwareBazaar
TLSH B9458362A71282D8E4953FF3CF97762923E3FCFED4908648664A8A3C51E32C61C5D749
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
novget.com:587

AgentTesla SMTP exfil email address:
nellbooks@novget.com

Intelligence

File Origin
# of uploads :
3
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
GD-5401.doc
Verdict:
Malicious activity
Analysis date:
2021-01-11 13:05:54 UTC
Tags:
ole-embedded trojan exploit CVE-2017-11882 rat agenttesla
Link:
https://app.any.run/tasks/b313b88e-797f-4882-a7fc-e7afd54b5a5e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/111329/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.14392.9178.UNOFFICIAL
Create hunting rule

PUA.Win.Trojan.Generic-6629274-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Launching a process
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/578286
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops PE files to the user root directory
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338196 Sample: zosFl3kiAK.exe Startdate: 11/01/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 2 other signatures 2->52 7 zosFl3kiAK.exe 5 2->7         started        process3 file4 24 C:\Users\user\poe.exe, PE32 7->24 dropped 26 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->26 dropped 28 C:\Users\user\poe.exe:Zone.Identifier, ASCII 7->28 dropped 30 C:\Users\user\AppData\...\zosFl3kiAK.exe.log, ASCII 7->30 dropped 54 Drops PE files to the user root directory 7->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->56 11 poe.exe 3 7->11         started        14 cmd.exe 1 7->14         started        signatures5 process6 signatures7 58 Multi AV Scanner detection for dropped file 11->58 60 Writes to foreign memory regions 11->60 62 Allocates memory in foreign processes 11->62 64 2 other signatures 11->64 16 InstallUtil.exe 2 11->16         started        20 reg.exe 1 1 14->20         started        22 conhost.exe 14->22         started        process8 dnsIp9 32 novget.com 162.244.95.61, 49715, 587 PONYNETUS United States 16->32 34 192.168.2.1 unknown unknown 16->34 36 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->36 38 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->38 40 Tries to steal Mail credentials (via file access) 16->40 44 3 other signatures 16->44 42 Creates an undocumented autostart registry key 20->42 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-11 10:04:05 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=raopzzjgefgacgh3b2wdhjsnbrxnnitykofc63hsrmcz4tfxmh7q._file
Verdict:
unknown
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b0fc68d01809511045e3837cd93da4eca31cbe69d432287ffe1a716597147f18
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AgentTesla
+ 130 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210111-5smg7btkw6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff
MD5 hash:
f1e1efbc90e741f9e20373154e63114d
SHA1 hash:
39335fcf35520de04e33523c43f8fea23125484f
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
SH256 hash:
1b18ddcd0b6854c6eb4ba435bed2da8a86ab93295956de74e2f39369935e909b
MD5 hash:
ac26d91256cde1e370bfeb6dfdbe7713
SHA1 hash:
969c0711b91fd07a273426845fb7cb301739dc78
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
SH256 hash:
a60900adc31e8e28ff541b91a55de5d9719c0d1ddc3022eb6f6fb5ac19cc9e4f
MD5 hash:
831fb0609b3509b4fb31ac662ac69217
SHA1 hash:
985c33fa2b01e305995e2ea166b961b01f0f6335
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
SH256 hash:
c06d4e3d0205d9bdd4a4b40b8da710d698b3a5d73a1626c9ca058c10b2c6d00c
MD5 hash:
7f67414b3fd29299f2d29ad7c2afb995
SHA1 hash:
2ec40d57c08c47433a6d044d271d74005dddae8d
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
SH256 hash:
e2b5646e959fcf2f6ed994780262e65c16cecbc9d3421ada3239f26130ebe8d1
MD5 hash:
7a13d5b7628956f87cb4f24b3e66ff5d
SHA1 hash:
5a2a3e4a70a7ef67180b6dea2273c9c3ae162f9c
Link:
https://www.unpac.me/results/6f319f9e-4a80-46a8-b935-02fef1e8289b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:INDICATOR_KB_CERT_0deb004e56d7fcec1caa8f2928d4e768
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificate
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Web download

AgentTesla

Executable exe 881cfce526214c0118fb0eac33a64d0c6ed6a278538a2f6cf28b059e4cb761ff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/953291/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/111329/

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