MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2849f8e54789388e2464504860329fc6d42ca47879cc61b8960e7297477cc948. 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 2 File information Comments 1

SHA256 hash: 2849f8e54789388e2464504860329fc6d42ca47879cc61b8960e7297477cc948
SHA3-384 hash: aab97d3f5a30725bdf002cbfa10fb5a292e40c968ed27d3d5c6a43866e394510be632a04614ccebe5c1d9d5d168dada9
SHA1 hash: 8739fd497f712161747a6fdb306046a4bfc25605
MD5 hash: 5f79994b00eee718b11111c7dd11f735
humanhash: alpha-georgia-fix-sink
File name:Request for Qoutation For urgent Response For the Month of June rfq00735244.exe
Download: download sample
Signature AgentTesla
File size:584'192 bytes
First seen:2021-05-20 09:21:48 UTC
Last seen:2021-05-20 10:18:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:iF9USm3AXKzizcEh06gMOVsU7pec/evWLa5Z:iFqSm3AaziBMs8ecYWLm
Threatray 5'055 similar samples on MalwareBazaar
TLSH CAC4CF2333A8E7A4E1B9A7758421921083F5F526E735DA4D7E6C109E0962FC487E2FD3
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request for Qoutation For urgent Response For the Month of June rfq00735244.exe
Verdict:
Malicious activity
Analysis date:
2021-05-20 09:57:10 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
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
Multi AV Scanner detection for dropped 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 418388 Sample: Request for Qoutation For u... Startdate: 20/05/2021 Architecture: WINDOWS Score: 100 49 uis.com.mx 2->49 51 mail.uis.com.mx 2->51 61 Found malware configuration 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 Yara detected AgentTesla 2->65 67 11 other signatures 2->67 8 Request for Qoutation For urgent Response For the Month of June rfq00735244.exe 7 2->8         started        12 vaklXcs.exe 5 2->12         started        14 vaklXcs.exe 2->14         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\sozRus.exe, PE32 8->35 dropped 37 C:\Users\user\...\sozRus.exe:Zone.Identifier, ASCII 8->37 dropped 39 C:\Users\user\AppData\Local\...\tmpC6FC.tmp, XML 8->39 dropped 41 Request for Qoutat...rfq00735244.exe.log, ASCII 8->41 dropped 69 Injects a PE file into a foreign processes 8->69 16 Request for Qoutation For urgent Response For the Month of June rfq00735244.exe 2 7 8->16         started        21 schtasks.exe 1 8->21         started        71 Multi AV Scanner detection for dropped file 12->71 73 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->73 75 Machine Learning detection for dropped file 12->75 77 2 other signatures 12->77 23 vaklXcs.exe 4 12->23         started        25 schtasks.exe 1 12->25         started        signatures6 process7 dnsIp8 43 uis.com.mx 204.44.192.31, 49735, 49738, 587 ASN-QUADRANET-GLOBALUS Canada 16->43 45 mail.uis.com.mx 16->45 31 C:\Users\user\AppData\Local\...\vaklXcs.exe, PE32 16->31 dropped 33 C:\Users\user\...\vaklXcs.exe:Zone.Identifier, ASCII 16->33 dropped 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->53 55 Tries to steal Mail credentials (via file access) 16->55 57 Tries to harvest and steal ftp login credentials 16->57 59 3 other signatures 16->59 27 conhost.exe 21->27         started        47 192.168.2.1 unknown unknown 23->47 29 conhost.exe 25->29         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Status:
Malicious
First seen:
2021-05-20 09:22:16 UTC
AV detection:
14 of 47 (29.79%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
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: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 2849f8e54789388e2464504860329fc6d42ca47879cc61b8960e7297477cc948

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-20 10:03:06 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection