MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f. 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 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f
SHA3-384 hash: b6330554d3ae730fd2758d83f5dd3ec2f99411d8d0297711344d349eb6556ad64c31e9b35993393a158b89aa7dc5842b
SHA1 hash: 124cadc03fe408b868decb4de411dc050e4ebecc
MD5 hash: d6ed103ce4e021dada76e7af5c11c9ad
humanhash: butter-asparagus-quebec-moon
File name:REQUEST FOR PRICE QUOTE - URGENT.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:964'608 bytes
First seen:2021-05-08 19:35:07 UTC
Last seen:2021-05-09 08:10:57 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 24576:4ANv+4urDD3FxewOI9v5EvNCDVUEwwT8+:xv+4GQM9NVUE
Threatray 5'073 similar samples on MalwareBazaar
TLSH D325F1765340AF64E4BE0BBB88A6942007F6FC19D772C51E6CF8349F25B3BE151A2607
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/153332/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.624-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/719173
Signature
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal ftp login credentials
Uses an obfuscated file name to hide its real file extension (double extension)
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: 408515 Sample: REQUEST FOR PRICE QUOTE - U... Startdate: 08/05/2021 Architecture: WINDOWS Score: 100 69 Found malware configuration 2->69 71 Multi AV Scanner detection for dropped file 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 13 other signatures 2->75 7 REQUEST FOR PRICE QUOTE - URGENT.pdf.exe 7 2->7         started        11 pGKuRU.exe 2->11         started        13 pGKuRU.exe 2->13         started        process3 file4 53 C:\Users\user\AppData\...OVdiUxqNkNL.exe, PE32 7->53 dropped 55 C:\Users\...OVdiUxqNkNL.exe:Zone.Identifier, ASCII 7->55 dropped 57 C:\Users\user\AppData\Local\...\tmp35AA.tmp, XML 7->57 dropped 59 REQUEST FOR PRICE ... URGENT.pdf.exe.log, ASCII 7->59 dropped 77 Adds a directory exclusion to Windows Defender 7->77 79 Injects a PE file into a foreign processes 7->79 15 REQUEST FOR PRICE QUOTE - URGENT.pdf.exe 7->15         started        19 powershell.exe 21 7->19         started        21 powershell.exe 20 7->21         started        31 2 other processes 7->31 81 Multi AV Scanner detection for dropped file 11->81 83 Machine Learning detection for dropped file 11->83 23 powershell.exe 11->23         started        25 schtasks.exe 11->25         started        27 powershell.exe 11->27         started        29 pGKuRU.exe 11->29         started        33 4 other processes 13->33 signatures5 process6 file7 61 C:\Users\user\AppData\Roaming\...\pGKuRU.exe, PE32 15->61 dropped 63 C:\Users\user\...\pGKuRU.exe:Zone.Identifier, ASCII 15->63 dropped 65 Tries to harvest and steal ftp login credentials 15->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->67 35 conhost.exe 19->35         started        37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        47 conhost.exe 31->47         started        49 conhost.exe 33->49         started        51 2 other processes 33->51 signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-08 10:40:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m4oeg33xgvlv7vfmnrulrdpyxii2v4yubgrgqkvsasb7jbqy6m7q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
075d98e62c3f5fcbff5c865c72ca862087052e56f0bca4d564595be759f5f2cd
AgentTesla
08ae3a735881e41099740e2e79fcd4107d5e94fe9267e28d6bf8bd9fd80a7ce6
AgentTesla
19949d4abee41c81c343543fc5e71de14f297440940bceb3a8f2451c7edb7d9c
AgentTesla
38cf806ecaf30b5209ebce1a41e7ac877d3201cec05f4a665fe85797a7069bbc
AgentTesla
428b4819734a979d5685b235d190ab9e07bfd6e5098e22ee9195cd386dc701d0
AgentTesla
782e217ec684944693a03a56d29675c879b31fb570c5f9956552ba5968295463
AgentTesla
9bc94d701cc45f74ee489efe7d99e84017d17a71e0232b0d14cf82c005a1ae1c
AgentTesla
9e33ca4eee3b2499f384dcfd926f97675258157bbdbeaa5c6720abc746c77d2c
AgentTesla
b4d96af292dd978e092a783a3a68d13f937d1ec67504fefb8922df68f5734086
AgentTesla
ea86beebc5237d00ee6fd3cffbbb07e0e625da940cc056e07ff26b9f47ed9a5f
AgentTesla
+ 5'063 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210508-8jc6aferkj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/77fe320f-2254-4839-968b-7eab5edd831d/
SH256 hash:
671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f
MD5 hash:
d6ed103ce4e021dada76e7af5c11c9ad
SHA1 hash:
124cadc03fe408b868decb4de411dc050e4ebecc
Link:
https://www.unpac.me/results/77fe320f-2254-4839-968b-7eab5edd831d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f

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
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

rar 3fffb3c52121210995e11b68b6892df762cd11970f9ec2f672f8718fe2cd79ac

AgentTesla

Executable exe 671c436f7735575fd4ac6c68b88df8ba11aaf31409a2682ab20483f48618f33f

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/153332/
  
Dropped by
SHA256 3fffb3c52121210995e11b68b6892df762cd11970f9ec2f672f8718fe2cd79ac

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-08 19:59:34 UTC

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