MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b54cee8f8b2575cee216504872b9849201aea876327300a57d34f089ecdcd57. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
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SHA256 hash: 4b54cee8f8b2575cee216504872b9849201aea876327300a57d34f089ecdcd57
SHA3-384 hash: 87af23f6763ddca515ae626e5180aac815797d8017cac6612e96ecac5e9e416935bee06444b3e4dc974352ac186b7301
SHA1 hash: 24d5cbd24e358033cb39e021395e071f2c50d436
MD5 hash: 82f6f49a4b1c33f9bf2a1e0da3bcad20
humanhash: leopard-stairway-cold-artist
File name:4b54cee8f8b2575cee216504872b9849201aea876327300a57d34f089ecdcd57
Download: download sample
Signature AgentTesla
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File size:84'896 bytes
First seen:2020-11-12 11:10:48 UTC
Last seen:2024-07-24 13:59:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:Gl71Ig0BRARa/If4cPP2ZHQLxDDB4Uf2hZ:siQocMHIxJ4Uf4
Threatray 1'152 similar samples on MalwareBazaar
TLSH F783CD36252DDAC3D673447DC89ECF90F1BC5862AF47C1917AE948CBA3BF1380A15A85
Reporter madjack_red
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
3
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.2676.25476.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/532467
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Connects to a pastebin service (likely for C&C)
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
May check the online IP address of the machine
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 harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 315334 Sample: 8DHgG635TK Startdate: 12/11/2020 Architecture: WINDOWS Score: 100 24 unelsaid.com 2->24 26 mail.unelsaid.com 2->26 36 Found malware configuration 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected AgentTesla 2->40 42 5 other signatures 2->42 8 8DHgG635TK.exe 15 2 2->8         started        12 WerFault.exe 2->12         started        signatures3 process4 dnsIp5 28 hastebin.com 172.67.143.180, 443, 49726 CLOUDFLARENETUS United States 8->28 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->46 48 Hides threads from debuggers 8->48 14 8DHgG635TK.exe 2 8->14         started        18 timeout.exe 1 8->18         started        50 Writes to foreign memory regions 12->50 20 8DHgG635TK.exe 12->20 injected signatures6 process7 dnsIp8 30 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.169.28, 443, 49754 AMAZON-AESUS United States 14->30 32 nagano-19599.herokussl.com 14->32 34 api.ipify.org 14->34 52 Tries to steal Mail credentials (via file access) 14->52 54 Tries to harvest and steal ftp login credentials 14->54 56 Tries to harvest and steal browser information (history, passwords, etc) 14->56 22 conhost.exe 18->22         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b54cee8f8b2575cee216504872b9849201aea876327300a57d34f089ecdcd57/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2020-11-11 22:47:13 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnkm52hywjlvz3rbmuciok4yjeqbv2uhmmttacsx2nhqrhwnzvlq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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a85ec6da48fcb9402c987b1be9eef89eeb7a71a8a76e0d0caeeb0610724a0bd7
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b2b25365ac3fab2649ba188a0c113a558686c049d89bb4b8f3d7439a6e6732c0
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c2330695f7393018b464630da587c9d2ff1cf9d1304f32dfed1b32f0037b78b9
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d5313cb45c7eafd84a3d91d1b94d98693556f528bdad1e420433aed0b54fcae3
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e788686b2a0e0efbf94e3f33a47e63494ca216e965191d82cd2922b8af6fe037
AgentTesla
+ 1'142 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/201112-h3rf4vw6p2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
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:
4b54cee8f8b2575cee216504872b9849201aea876327300a57d34f089ecdcd57
MD5 hash:
82f6f49a4b1c33f9bf2a1e0da3bcad20
SHA1 hash:
24d5cbd24e358033cb39e021395e071f2c50d436
Link:
https://www.unpac.me/results/d1e912ec-5bbc-4db5-989c-fc9efc5561ad/
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
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Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
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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.

Comments