MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91db81cd38b9f713767e35c4012057b99734e8e0e889af77935c6a0b47eedcbb. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 91db81cd38b9f713767e35c4012057b99734e8e0e889af77935c6a0b47eedcbb
SHA3-384 hash: 525fb283af20283a4e5818872a497342c45da60a578bae236b4409490e7b5e58c07af76a2e6d85952f05ea0319bee144
SHA1 hash: 22a645961d6bbf81628fa16b4b4453192ca6eda5
MD5 hash: 45133015e30368bb6c8ef7dab0bcc675
humanhash: india-early-batman-hydrogen
File name:CIF Specification.exe
Download: download sample
Signature AgentTesla
File size:453'667 bytes
First seen:2022-03-28 09:19:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:BGizepOs/T1eMg4DP0hThgbBhUJkXl7m4KJOU81kjfDX3MGNKiiyPGAl:Nelbd2hWBhBJm4oOM7L3MGNl
Threatray 19'757 similar samples on MalwareBazaar
TLSH T10FA4D08372AF9BEEC228053128D64237E3125C1546D38E5733AD367F66F2824965ED2F
File icon (PE):PE icon
dhash icon 1290a08688911284 (1 x AgentTesla)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Changes security center settings (notifications, updates, antivirus, firewall)
Found malware configuration
Malicious sample detected (through community Yara rule)
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598148 Sample: CIF Specification.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Yara detected AgentTesla 2->43 7 CIF Specification.exe 18 2->7         started        10 svchost.exe 2->10         started        13 svchost.exe 1 1 2->13         started        16 6 other processes 2->16 process3 dnsIp4 29 C:\Users\user\AppData\Local\...\rxzymcscs.exe, PE32 7->29 dropped 18 rxzymcscs.exe 7->18         started        57 Changes security center settings (notifications, updates, antivirus, firewall) 10->57 21 MpCmdRun.exe 1 10->21         started        37 127.0.0.1 unknown unknown 13->37 file5 signatures6 process7 signatures8 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->45 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->47 23 rxzymcscs.exe 2 5 18->23         started        27 conhost.exe 21->27         started        process9 dnsIp10 31 akinaluminyum.com.tr 5.180.186.11, 49733, 587 DBT-ASTR Turkey 23->31 33 mail.akinaluminyum.com.tr 23->33 35 3 other IPs or domains 23->35 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->49 51 Tries to steal Mail credentials (via file / registry access) 23->51 53 Tries to harvest and steal ftp login credentials 23->53 55 Tries to harvest and steal browser information (history, passwords, etc) 23->55 signatures11
Threat name:
Win32.Infostealer.DarkStealer
Status:
Malicious
First seen:
2022-03-28 10:24:29 UTC
AV detection:
17 of 42 (40.48%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
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
Adds Run key to start application
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
AgentTesla
Unpacked files
SH256 hash:
0087b3a43c9c4171b22c2351184a54454f78a80e83df4d5034b14b342ca0ffc2
MD5 hash:
eec446954ca01600886574c60521f72c
SHA1 hash:
8d5702b17adc4d17f8522ba0d87498abc68a3768
SH256 hash:
7d5473f76dfaf357338667ad63a7224c787104af64be638c013d72fac778c854
MD5 hash:
e52046eb772f44fb4bd6582440f71707
SHA1 hash:
6b6191c273dc02d0a58abef3209070d127f1a2c7
SH256 hash:
f11fc97632fcee22f14127048281136837d7f43c7fcf4bab2eaca15ab0ce140c
MD5 hash:
a0ff0529622f60cf4292777111ea558f
SHA1 hash:
3bd44be91a943b4e14e91c77813c426a510c78ae
SH256 hash:
91db81cd38b9f713767e35c4012057b99734e8e0e889af77935c6a0b47eedcbb
MD5 hash:
45133015e30368bb6c8ef7dab0bcc675
SHA1 hash:
22a645961d6bbf81628fa16b4b4453192ca6eda5
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 91db81cd38b9f713767e35c4012057b99734e8e0e889af77935c6a0b47eedcbb

(this sample)

  
Delivery method
Distributed via e-mail attachment

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