MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b
SHA3-384 hash: be4dd4bf63d5a573cba5019558f39fbfc4d748a7269deb5716c1c418a6aacb04b873d34ad1379777abe1e1030cbdc11a
SHA1 hash: ea4fa085c95d2a5b5cce7d624c4db2d9c38dd865
MD5 hash: a3fe9e9f94c184e5e3378835810a81b6
humanhash: orange-muppet-kentucky-mobile
File name:SOA.rar.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:923'648 bytes
First seen:2021-06-03 08:47:51 UTC
Last seen:2021-06-03 15:04:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:1AWkKuXrYRNONLrJ3ecDvYTx36ORC62eTg8WHEu3lkXGEMRU8cdGUtDpearFBuy6:Q19eKH5P8dq
Threatray 5'569 similar samples on MalwareBazaar
TLSH 5B15292439EA5019F173BFBA8BE475D6DA6FBE633B06545E20A0334A0633A42DDC153D
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA.rar.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-03 08:50:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9cfcc2b1-f6ab-472f-8677-ffa7b995c0c9

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/164320/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Changing the hosts file
Result
Verdict:
UNKNOWN
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/796526
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 428922 Sample: SOA.rar.exe Startdate: 03/06/2021 Architecture: WINDOWS Score: 100 34 smtp.framafilms.com 2->34 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 6 other signatures 2->52 7 SOA.rar.exe 3 2->7         started        11 kprUEGC.exe 3 2->11         started        13 kprUEGC.exe 2 2->13         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\SOA.rar.exe.log, ASCII 7->32 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->54 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->56 58 Injects a PE file into a foreign processes 7->58 15 SOA.rar.exe 2 5 7->15         started        60 Multi AV Scanner detection for dropped file 11->60 62 Machine Learning detection for dropped file 11->62 20 kprUEGC.exe 2 11->20         started        22 kprUEGC.exe 11->22         started        24 kprUEGC.exe 2 13->24         started        signatures6 process7 dnsIp8 36 smtp.framafilms.com 185.220.245.14, 49738, 49741, 49742 SEEWEBWebhostingcolocationandcloudservicesIT Switzerland 15->36 26 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->26 dropped 28 C:\Users\user\...\kprUEGC.exe:Zone.Identifier, ASCII 15->28 dropped 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->38 40 Tries to steal Mail credentials (via file access) 15->40 42 Tries to harvest and steal ftp login credentials 15->42 44 4 other signatures 15->44 30 C:\Windows\System32\drivers\etc\hosts, ASCII 24->30 dropped file9 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-03 06:09:35 UTC
AV detection:
10 of 47 (21.28%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6n67jep4j6mgltkywswcruiv6rii2ie46mhjg75sgf45ddywcyvq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0dea09c30d8e850fab893b3f17f9bad6898c7e77bb690ecfe523681ca0f07e95
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561216f97efc76eeb6600d7faf1e8942192bdb5b259998da4318882151c24dc3
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7850e6c98a4f6ae777218f3a1be42fed155748286909338062e8d857cf383f94
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9bc27c28bbcda4a82940f28f070239600ede7afc78286e79f83fe3e1b4f80e1f
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a3aa3605c436f4ef38f404007ce0305562def1f6e77f244232671b10914894f0
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a659c50e03822cd595bf5d21007b2870fda97b6d4a5d3840d68bf8f333cc47ea
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da33725694fafe69b0a72478a9741ae2eac9d294966f160204a93e27f711b514
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ebf9b72c2f7cf094032172e2f318cd41f385e4bb46cb123b3e3138561f8b20a3
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f5a7e9dce11100612c553e309ad9cf7134c2012e95139af9ed5eb03ba8ca7b34
AgentTesla
+ 5'559 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/210603-g88129yt6n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/2b92ca18-71e9-4fd7-aa2a-d14a6d149c7e/
SH256 hash:
b683b867c9c47fa7e9ac736e9fb4d1c3886cfca634cea9005e65e92c535a388d
MD5 hash:
b44393bb9cf38b7af0b39fdd5b7b14c3
SHA1 hash:
ac60e7ea2cdc9308d1f40c3a139cbaa3493b974d
Link:
https://www.unpac.me/results/2b92ca18-71e9-4fd7-aa2a-d14a6d149c7e/
SH256 hash:
3e389caa8f67a2f913123885a79209fb068de6324594fb27e0bcdd694391f9c3
MD5 hash:
878052b56a0f1368f6fabb568715787d
SHA1 hash:
024bd7ff16ef7f93c3fddbdd1bf183e3a4d0a55e
Link:
https://www.unpac.me/results/2b92ca18-71e9-4fd7-aa2a-d14a6d149c7e/
SH256 hash:
f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b
MD5 hash:
a3fe9e9f94c184e5e3378835810a81b6
SHA1 hash:
ea4fa085c95d2a5b5cce7d624c4db2d9c38dd865
Link:
https://www.unpac.me/results/2b92ca18-71e9-4fd7-aa2a-d14a6d149c7e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe f37df491fc4f9865cd58b4ac28d115f4508d209cf30e937fb23179d18f16162b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/164320/

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