MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99
SHA3-384 hash: f9644d20de591ddadfca8d3c69aa6ea1a50383775b13072881063846f94d590ad9e7bc7d02fe7c2efe3221b824eaa3eb
SHA1 hash: eff57bef43b0c76d0f8b772cccbece31bf8bbcac
MD5 hash: 79ba55f8203c55bb41ed3c0d275b60b5
humanhash: robert-sink-mississippi-ten
File name:review.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:500'736 bytes
First seen:2022-04-26 08:25:06 UTC
Last seen:2022-04-26 12:36:35 UTC
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:qoMhXl2lCIArcsVQ3zmmBNkqh6b9r5rI1nJG7tWAGjKZ/:SX/VvVQSmwqQFAJG
Threatray 16'293 similar samples on MalwareBazaar
TLSH T1FAB47CD8725172EFCD53D9338BDC5EA4A6202576832BF703521723E85A0E96F9F241E2
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/266687/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.23971.12160.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6267ac9b79c6c1e67d303419/reports/83829292-6b5a-4d0e-a6a5-ce25e96ab12f/overview
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c3b8fbd-8407-459d-9bba-ab2758354ac2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/983046
Signature
.NET source code contains very large array initializations
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 615529 Sample: review.exe Startdate: 26/04/2022 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 8 other signatures 2->42 7 review.exe 6 2->7         started        process3 file4 22 C:\Users\user\AppData\...\HHIKvHNOtgPtf.exe, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\Temp\tmpC42.tmp, XML 7->24 dropped 26 C:\Users\user\AppData\...\review.exe.log, ASCII 7->26 dropped 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->46 48 Uses schtasks.exe or at.exe to add and modify task schedules 7->48 50 Injects a PE file into a foreign processes 7->50 11 review.exe 4 7->11         started        16 schtasks.exe 1 7->16         started        18 review.exe 7->18         started        signatures5 process6 dnsIp7 30 mail.orchidexports.biz 192.185.145.93, 49774, 587 UNIFIEDLAYER-AS-1US United States 11->30 32 x1.i.lencr.org 11->32 34 windowsupdatebg.s.llnwi.net 11->34 28 C:\Windows\System32\drivers\etc\hosts, ASCII 11->28 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->52 54 Tries to steal Mail credentials (via file / registry access) 11->54 56 Tries to harvest and steal ftp login credentials 11->56 58 2 other signatures 11->58 20 conhost.exe 16->20         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-26 06:31:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rebjbicv5ju5ptro2wchstna4jrtm5htbg47sfr5utbytqhnxwmq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
29cb6bc05ceec1f61c6505393a38615ecd94794ac9641cb533a943fd22734cc7
AgentTesla
43cf99ef6eeef41b54212c4efc1dc64f9a783830ecc22bfd0488321702f59659
AgentTesla
5bbe20646d38c2bb4bc38650649633c5a78522a6ea2f09f04cb6be0f3075544e
AgentTesla
5e1e2ce82b5fbcf65e9b5253453f4288dc8510fb30451f7f06258d7753bee9b0
AgentTesla
f0a060d7e0bea0121e790c9998cd93c141d66e5126bbc490102d6bf74dd42515
AgentTesla
fbe3fd310bbc132fe455bc66020c3e1327b65d0b0deb661b4402ed10fe62a36c
AgentTesla
+ 16'283 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220426-kbvbysbfe7/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
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
Unpacked files
SH256 hash:
04cd0fe13ad8388a6b7085cd56ea5cbefd7ca49459f06752fe8b6e806a482f17
MD5 hash:
f58b35ec6d4b2cb857bdcb89859dac31
SHA1 hash:
7d2bb5df2434d2dc0ebdf5b8c090c738226c8996
Link:
https://www.unpac.me/results/d03cad77-5cff-4008-9ce4-53e6b4619157/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/d03cad77-5cff-4008-9ce4-53e6b4619157/
SH256 hash:
9764022563ba379c6b34c17d2c679d44b447b50a41fb2f4fb7e546be2e11bc9a
MD5 hash:
def5d72af3386f269cd483b80aeee715
SHA1 hash:
2c0e16efa0d667ac39091ebfd822890aea974938
Link:
https://www.unpac.me/results/d03cad77-5cff-4008-9ce4-53e6b4619157/
SH256 hash:
890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99
MD5 hash:
79ba55f8203c55bb41ed3c0d275b60b5
SHA1 hash:
eff57bef43b0c76d0f8b772cccbece31bf8bbcac
Link:
https://www.unpac.me/results/d03cad77-5cff-4008-9ce4-53e6b4619157/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99

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: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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 890290a055ea69d7ce2ed584794da0e2633674f309b9f9163da4c389c0edbd99

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/266687/

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