MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5
SHA3-384 hash: 63a47c5cba10ff4cf37f278ca4a18dedc7a98c3a042b43b2e2e9b5082207a0b9187a71c0f8a5bc23c785398d29486b5a
SHA1 hash: 79a18d1b71c42504e8f59ec08f7b20971b2eaf12
MD5 hash: b3d8c1bfd2a6eb14db84eb4e88be99da
humanhash: lion-lamp-sixteen-north
File name:PO321456.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:628'736 bytes
First seen:2021-10-04 04:17:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ZfoVljQMCAdtoX/CQjM1lnNLwoZfZa3190+ANJp932JT6YashlM0JT6YashlM:9sNCAdOX/rM1lnNlo190nd3S9ashlV9H
Threatray 10'595 similar samples on MalwareBazaar
TLSH T1F0D4F1AD23AB9900FDBB47F5787591908BB1B8171416C73C9F9428ED0D637E48AE0B63
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO321456.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 04:18:05 UTC
Tags:
keylogger stealer agenttesla trojan rat
Link:
https://app.any.run/tasks/ba4be2bd-063f-4ebe-9900-3333c70c0eee

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/194406/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c2f93b95458900cdc640c/reports/a1ebccb2-52e4-4e1b-aedb-479f83408d6f/overview
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/10fd10b4-e300-44b0-bf72-39e8ab5a991d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/863630
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Contains functionality to register a low level keyboard hook
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
Multi AV Scanner detection for domain / URL
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)
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 AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 496058 Sample: PO321456.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 6 other signatures 2->45 6 PO321456.exe 3 2->6         started        10 newapp.exe 3 2->10         started        12 newapp.exe 2 2->12         started        process3 file4 23 C:\Users\user\AppData\...\PO321456.exe.log, ASCII 6->23 dropped 47 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 51 Contains functionality to register a low level keyboard hook 6->51 14 PO321456.exe 17 9 6->14         started        53 Multi AV Scanner detection for dropped file 10->53 55 Injects a PE file into a foreign processes 10->55 19 newapp.exe 2 10->19         started        21 newapp.exe 2 12->21         started        signatures5 process6 dnsIp7 29 ftp.northsrockusa.com 67.220.183.18, 21, 49822, 49823 24SHELLSUS United States 14->29 25 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->25 dropped 27 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 14->27 dropped 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->31 33 Tries to steal Mail credentials (via file access) 14->33 35 Tries to harvest and steal ftp login credentials 14->35 37 3 other signatures 14->37 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-04 04:17:10 UTC
AV detection:
8 of 45 (17.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sd3ikwlkkbk26avispliotjkphz2tibstpqeynrakleimwfc5w2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0cf2c83a922e75556e9612e1639b50f71697b5e79dccbb050218369e31aab445
AgentTesla
1b5f7e3c38243fb9d77e6ae12cc72f1aabcbf9cc083ef585f24ee9e898c19a88
AgentTesla
20649a9922f5fbcc070cf6d8455621b0891217ce1167f89c23ab6964abb90aaa
AgentTesla
39540a67e127cb27a4082b5e63f7d3d82963fec9f56e5a739f9f2b1a1e854baa
AgentTesla
acb631e0a0d57e6469fbf28e7183ca73ad169047a836accb025cd7b847e6c31b
AgentTesla
aff05449760ff99e902971d68c62bc5b86affd5f1cb40d6c911ae4c691943bec
AgentTesla
b4025880723d527625c1ee4b831574ff16492dc7027c89c4039eaf3f3f753545
AgentTesla
ca7beb7680e56c787ab0e04634f813dbeda9ce2ac1469b86ac50ba97a797180b
AgentTesla
cb91007ee0220d30de02d0ff07546aae9d149cefd5c5780a6f8fa3601cd1138c
AgentTesla
e60c96af9c671afb6096d78d825d9e28d969ed94f25376300eb97f64b25bdde5
AgentTesla
+ 10'585 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/211004-ewdbaafgf7/
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
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
f3ca720972fb9c9cb5271f62d9d538a02d74062b900e5ae248aec8c0cff0e29d
MD5 hash:
f47ae68af34a810131339906b7740e3b
SHA1 hash:
d146c9e09e5741906243033cc7d978418413a2ba
Link:
https://www.unpac.me/results/23876993-5b21-4200-95ed-8aa59c859a90/
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
Link:
https://www.unpac.me/results/23876993-5b21-4200-95ed-8aa59c859a90/
SH256 hash:
fba7eb5921e05f878c4ffeef62915c9aa9290b2e14f9cc4e9333038461fbf589
MD5 hash:
19f0a039b5f5025fb2127c0eeb9ea9f8
SHA1 hash:
25becef99e150ad9c5260bf0fd091383f479a673
Link:
https://www.unpac.me/results/23876993-5b21-4200-95ed-8aa59c859a90/
SH256 hash:
90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5
MD5 hash:
b3d8c1bfd2a6eb14db84eb4e88be99da
SHA1 hash:
79a18d1b71c42504e8f59ec08f7b20971b2eaf12
Link:
https://www.unpac.me/results/23876993-5b21-4200-95ed-8aa59c859a90/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/90f685596a50/report/overview.html
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/90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
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 90f685596a5055af02a893d6874d2a79f3a9a0329be04c362052c88658a2edb5

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194406/

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