MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83b29de5935d98be775a17ab0d062e0bad44935cf7f7e24db5c184796bccfcb4. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83b29de5935d98be775a17ab0d062e0bad44935cf7f7e24db5c184796bccfcb4
SHA3-384 hash: 58249c2bf821b6656f55fbf77e67c754810ec37a056a9f217ad8390960b10038b8964ad1d85e75530748f6603842380c
SHA1 hash: df8b4bea38aae17d714f70d01127b452c1497555
MD5 hash: 906f0f9e9af1af4545444cfecd1e30b0
humanhash: october-salami-michigan-iowa
File name:NEW RFQ MTECH.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'390'080 bytes
First seen:2020-11-13 06:47:24 UTC
Last seen:2024-07-24 18:16:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:BBFC0SXoTjG0jaIpn8wZ55Uy6wdbAimPSva2rZqX7cbvoYLNubvp:w
Threatray 1'160 similar samples on MalwareBazaar
TLSH 13555B3D6D8826A35177F277A4B906C6FEB4618672790C4F12C32A487C4AF063E9774E
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.44454028.17270.7161.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/533568
Signature
.NET source code contains very large strings
Creates multiple autostart registry keys
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 315887 Sample: NEW RFQ MTECH.exe Startdate: 13/11/2020 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Multi AV Scanner detection for dropped file 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 7 other signatures 2->48 6 NEW RFQ MTECH.exe 1 4 2->6         started        10 UHlhez.exe 3 2->10         started        12 chroma.exe 1 2->12         started        14 2 other processes 2->14 process3 file4 32 C:\Users\user\AppData\Roaming\...\chroma.exe, PE32 6->32 dropped 34 C:\Users\user\...\chroma.exe:Zone.Identifier, ASCII 6->34 dropped 36 C:\Users\user\...36EW RFQ MTECH.exe.log, ASCII 6->36 dropped 50 Creates multiple autostart registry keys 6->50 52 Injects a PE file into a foreign processes 6->52 16 NEW RFQ MTECH.exe 2 5 6->16         started        20 NEW RFQ MTECH.exe 6->20         started        54 Multi AV Scanner detection for dropped file 10->54 56 Machine Learning detection for dropped file 10->56 22 UHlhez.exe 10->22         started        24 chroma.exe 2 12->24         started        26 UHlhez.exe 14->26         started        signatures5 process6 file7 28 C:\Users\user\AppData\Roaming\...\UHlhez.exe, PE32 16->28 dropped 30 C:\Users\user\...\UHlhez.exe:Zone.Identifier, ASCII 16->30 dropped 38 Creates multiple autostart registry keys 16->38 40 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->40 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83b29de5935d98be775a17ab0d062e0bad44935cf7f7e24db5c184796bccfcb4/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-11-12 03:05:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qozj3zmtlwml4522c6vq2brobowuje246736etnvygchs26m7s2a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0b741b53e9abfd7d5147eff7fa963976a776e8bedb99d08ae6e7288525823a59
AgentTesla
342af886075cca7fdeb8b212c3cfa6721adb1282dd670f0221a7f08cf1946dda
AgentTesla
428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0
AgentTesla
4fb0f5d8aace8234fd8ed8d02b7d8b3643bbe5350904da254c2c0fdb16ecabe3
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53b6f647f6c5d712e8ac0d200bb2e91d90814f649fd7eb8890367c0e8383b3ba
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723ec630211ca5a3268bd62e03caeec38b40e5d33c0e80908fec14332f006988
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91816d916870f6e48ed8937694ab3108bfd6b57b1aef7a69dff474db7602e274
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9d8df34f842a101d2026ed540a5e28f3138dec4a223757860e842886d15033c5
AgentTesla
a21e38f8f6be5ca6ad235835b89f774e142683615b5bec677d3cf49fe78c2f16
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c2492c733ead768e887ed1ebb1d1ee48fe059bde4f4650f5674c7c66adcc0dfa
AgentTesla
+ 1'150 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/201113-yqmg3g6mzx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
54e5a765bc473497fc82057c6465f31dd80f7323703d853194a89d667bca278b
MD5 hash:
713ac5de6df2681e598e22e7a3aed71c
SHA1 hash:
53ca4d4d7560f7922524e0acc90281176ae02fc0
Link:
https://www.unpac.me/results/1ddcac9e-a01b-459e-baa5-81ee9c5022a0/
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/1ddcac9e-a01b-459e-baa5-81ee9c5022a0/
SH256 hash:
c26df6f441d9a28328de571a9a12d9c7402a269c5fc0c09c91bf77e8cea4d999
MD5 hash:
3ddfde7a4e707a0d64998c4844c9551d
SHA1 hash:
c76836ba7cc693ef64d5659c44ab4ab86106220a
Link:
https://www.unpac.me/results/1ddcac9e-a01b-459e-baa5-81ee9c5022a0/
SH256 hash:
83b29de5935d98be775a17ab0d062e0bad44935cf7f7e24db5c184796bccfcb4
MD5 hash:
906f0f9e9af1af4545444cfecd1e30b0
SHA1 hash:
df8b4bea38aae17d714f70d01127b452c1497555
Link:
https://www.unpac.me/results/1ddcac9e-a01b-459e-baa5-81ee9c5022a0/
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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.

Malspam

AgentTesla

gz 6ca3d3838ebfc19f62421e6e264e0f87ddd084f202012dbe2883d8efaffd81fb

AgentTesla

Executable exe 83b29de5935d98be775a17ab0d062e0bad44935cf7f7e24db5c184796bccfcb4

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 6ca3d3838ebfc19f62421e6e264e0f87ddd084f202012dbe2883d8efaffd81fb
Cape
Cape
https://www.capesandbox.com/analysis/104774/

Comments