MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3
SHA3-384 hash: b3ca37e903d6b65d734bd78cec0197a9001780733759ed43c60179517c773ec178c2e7738b814338837d2eaa8c8b8ad5
SHA1 hash: fe4407aa7860f9b4d1199075c01480007b385aad
MD5 hash: 04c5c6b63396f7b84e337edbd7520aa4
humanhash: romeo-green-autumn-hamper
File name:AWB-2273692792.198736389_TR.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:950'784 bytes
First seen:2020-10-16 13:44:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:8pbfhdh6/PZQHeg/D1Wc6EKREnq925fqGOZRCp91IIlzex15O+:8pbfh8PczDSEKgZqGOZuIIlyxrv
Threatray 594 similar samples on MalwareBazaar
TLSH 9615AE45F6298E17CCDF0BF84D66C128F3B43E055819DA0E6E9875D837727A02AD2E4B
Reporter abuse_ch
Tags:AgentTesla exe geo TUR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.cambrapropietat.net
Sending IP: 213.96.212.75
From: Başak KOÇYİĞİT <basakocyigit@thy.com>
Subject: Hava yolu faturası
Attachment: AWB-2273692792.198736389_TR.rar (contains "AWB-2273692792.198736389_TR.exe")

AgentTesla SMTP exfil server:
mail.jjfconsultores.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72063/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42621.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/493758
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299342 Sample: AWB-2273692792.198736389_TR.exe Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 26 Found malware configuration 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Yara detected AgentTesla 2->30 32 4 other signatures 2->32 6 AWB-2273692792.198736389_TR.exe 3 2->6         started        process3 file4 20 C:\...\AWB-2273692792.198736389_TR.exe.log, ASCII 6->20 dropped 34 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->34 36 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->36 38 Injects a PE file into a foreign processes 6->38 40 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 6->40 10 AWB-2273692792.198736389_TR.exe 2 6->10         started        14 AWB-2273692792.198736389_TR.exe 6->14         started        16 AWB-2273692792.198736389_TR.exe 6->16         started        18 AWB-2273692792.198736389_TR.exe 6->18         started        signatures5 process6 dnsIp7 22 jjfconsultores.com 132.148.26.76, 49757, 587 AS-26496-GO-DADDY-COM-LLCUS United States 10->22 24 mail.jjfconsultores.com 10->24 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->42 44 Tries to steal Mail credentials (via file access) 10->44 46 Tries to harvest and steal ftp login credentials 10->46 48 Tries to harvest and steal browser information (history, passwords, etc) 10->48 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3/
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-10-16 11:25:34 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sa7mi5cd2q3agmuoldo5cgc77gtai4xgdsydtlj6lmuyvba763zq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
19cb1d89fb670dd31ceae6e0c41ffcf47767f6b3779804841f7aaf75adcd028f
AgentTesla
2366b27cff475b8bd3f0f21d699653b40727717fac97cef2f3328f58f91cf83d
AgentTesla
3a0be5a1fff244fa45880b635504af22de4c0357591578aa4b209ca53d3a4ccc
AgentTesla
73820e9bd81ce740a0a3ec45fe10749a64034aab5efbeb12adec9ebf46c0f2ba
AgentTesla
74561e938b5a4d9966fa56ba62082b6bcc9deecbe62984d1ebfc7db34eaf9f17
AgentTesla
8899a90e9da2a5de4afe8ba47e95750e95ec17ede7c31557d7a28243b9756364
AgentTesla
8e4ceb651508d097ba20fbb82af157ea25bc12e32caaf7d02247646e4e3c0629
AgentTesla
94f3a02a7435ee096c0f5ee7321d8d82ae12826b144bf1c706ebaf6508734450
AgentTesla
b46a6149d0b32f6cfc7f99f367b59c62510e3b10cb63e585b0d18a66f8b36761
AgentTesla
f010bc0295db81514c87fde7298f3425670ae67f4f24a21f20232a10eb644907
AgentTesla
+ 584 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201016-2hc1tfgk8n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Unpacked files
SH256 hash:
903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3
MD5 hash:
04c5c6b63396f7b84e337edbd7520aa4
SHA1 hash:
fe4407aa7860f9b4d1199075c01480007b385aad
Link:
https://www.unpac.me/results/0b1dd765-c9a2-4658-8218-8cd9d26f1a2b/
SH256 hash:
1d583ed8423e4003d1b41277a798656ae6431db82ab74ffa341afe763cdd42b3
MD5 hash:
034676d86d24dc6d83da51c3ca3f8c63
SHA1 hash:
0f57b5baf85fe3d5f50fba59ddca9a8a0eeceb85
Link:
https://www.unpac.me/results/0b1dd765-c9a2-4658-8218-8cd9d26f1a2b/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/0b1dd765-c9a2-4658-8218-8cd9d26f1a2b/
SH256 hash:
3686e0cb3b58f9df6275be21467535d6414e0330d74b5f0e7b219bd4f36536ea
MD5 hash:
98763b433b12902cc3592664f21d8a8a
SHA1 hash:
d439c43d55cb6c5c46c84dd1004649dfbd6e9fa5
Link:
https://www.unpac.me/results/0b1dd765-c9a2-4658-8218-8cd9d26f1a2b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3

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

rar 61ea22a1efb20a565e3c6c29db49a175536a664af96aa2533045103acb0a6461

AgentTesla

Executable exe 903ec47443d43603328e58ddd1185ff9a60472e61cb039ad3e5b298a841ff6f3

(this sample)

  
Dropped by
MD5 95ef52a8bcfa030221e3f9783e0a3c09
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72063/
  
Dropped by
SHA256 61ea22a1efb20a565e3c6c29db49a175536a664af96aa2533045103acb0a6461

Comments