MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3
SHA3-384 hash: b08cfdf03d615cc05a5deabbbdb2f8dd8f43d046bd6ecf340a593dff7d14d821e99e598e699fab6d8a6a6768a8bfd1ed
SHA1 hash: e5f546d5e6e23d159021935dd1744e0c4bf93683
MD5 hash: ae79eb8131737115a22fd824f7cc18ae
humanhash: seven-papa-seventeen-fruit
File name:2u3OZl79vvVpybeq.pif
Download: download sample
Signature AgentTesla
Create hunting rule
File size:509'440 bytes
First seen:2020-12-07 19:33:56 UTC
Last seen:2020-12-07 21:39:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:OjeGRbgEWo9mDRPWx4MJW+UWwmS3FYbwEdur:vcbRB98oLwmSVawL
Threatray 1'720 similar samples on MalwareBazaar
TLSH 49B4023202566F9BC37E5FB7850822108FB4A43BBB12F7ACBE8454D606D67949E50EF1
Reporter abuse_ch
Tags:AgentTesla pif


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hosted-by.rootlayer.net
Sending IP: 185.222.58.152
From: sales@martinmachinery.com
Reply-To: abdaiian.harrouni@gmail.com
Subject: PAGO FACTURA-065770
Attachment: 2u3OZl79vvVpybeq.zip (contains "2u3OZl79vvVpybeq.pif")

AgentTesla SMTP exfil server:
srvc13.turhost.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2u3OZl79vvVpybeq.pif
Verdict:
Malicious activity
Analysis date:
2020-12-07 20:14:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3384f052-028c-462a-bb01-34bfa11d6645

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/107101/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.14.11712.12547.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/557315
Signature
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Injects a PE file into a foreign processes
May check the online IP address of the machine
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: Scheduled temp file as task from temp location
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 327754 Sample: 2u3OZl79vvVpybeq.pif Startdate: 07/12/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 6 other signatures 2->37 7 2u3OZl79vvVpybeq.exe 6 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\BgyXga.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmp2C48.tmp, XML 7->21 dropped 23 C:\Users\user\...\2u3OZl79vvVpybeq.exe.log, ASCII 7->23 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 45 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 7->45 11 2u3OZl79vvVpybeq.exe 15 4 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 elb097307-934924932.us-east-1.elb.amazonaws.com 50.19.252.36, 443, 49750 AMAZON-AESUS United States 11->25 27 srvc13.turhost.com 37.230.107.16, 49751, 587 AEROTEK-ASTR Turkey 11->27 29 2 other IPs or domains 11->29 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2020-12-07 19:34:10 UTC
AV detection:
11 of 29 (37.93%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=edfkto5lp32bwn3gut6jyfuqxbfzijnbcbplky3hhjiab4bjg2zq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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6c172122db5af54bec6f1a6255169ff95ddebce78bc550814c701ef7e2664f58
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98fb18db59cb89a6d332a223c7b2d547bad41cf3b06ed2eaa75f6894049b5358
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ca6c0702ac45a81d1971f4411e553a85a5372c21d38638e5af8322f5605120f3
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cc8de0f68549d84a62dcd11df6625b2bfe08a6cfaea102f4710e28969a60f689
AgentTesla
+ 1'710 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/201207-w6kg7j5zkn/
Behaviour
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3
MD5 hash:
ae79eb8131737115a22fd824f7cc18ae
SHA1 hash:
e5f546d5e6e23d159021935dd1744e0c4bf93683
Link:
https://www.unpac.me/results/1cc4c0eb-fc4c-4059-b458-69f9c915436a/
SH256 hash:
086ff3937fe6b8c6e811ec04d5782eda59221be993483f64e8e4dbcea2e6d237
MD5 hash:
33a9109d94172201160049009bfabe21
SHA1 hash:
224d678de6849127e7af68ed18b3bf743fb082e1
Link:
https://www.unpac.me/results/1cc4c0eb-fc4c-4059-b458-69f9c915436a/
SH256 hash:
dac09db00b9e61e6d8bba7dee8e1d3c63d3cdc725112fabe35cf4b393c9aa246
MD5 hash:
6aefebaa168a9828d436a271aa0096cc
SHA1 hash:
ab7cf88bc0a831ebc9835acd924b5041f451638e
Link:
https://www.unpac.me/results/1cc4c0eb-fc4c-4059-b458-69f9c915436a/
SH256 hash:
78d97faaa009107325f8f4d851b4d1ba8bc9bb0f3f5b6494386cc5492bd0596b
MD5 hash:
937afb74e1723a035ab65c472327a34e
SHA1 hash:
ddaf229e65d93d222499774f3516bcd85424ad2f
Link:
https://www.unpac.me/results/1cc4c0eb-fc4c-4059-b458-69f9c915436a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3

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:SUSP_Reversed_Base64_Encoded_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an base64 encoded executable with reversed characters
Reference:Internal Research
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

zip 0285f474102fd9b19e04a508bfeed848f3c7f325d6604f629477cddf8338db2f

AgentTesla

Executable exe 20caa9bbab7ef41b3766a4fc9c1690b84b9425a1105eb563673a5000f02936b3

(this sample)

  
Dropped by
MD5 4436c0cc153514542ad6a6660a233319
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0285f474102fd9b19e04a508bfeed848f3c7f325d6604f629477cddf8338db2f
Cape
Cape
https://www.capesandbox.com/analysis/107101/

Comments