MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08
SHA3-384 hash: 5dfeebbaf55808212e0a8b2592ef88b863373db4e801ec9be5e7ee9c8ae79772c86057b8977ad371e4a569de51da349f
SHA1 hash: 5d13aff5b7a667805f0a97a87a30df84b658b00a
MD5 hash: b8b6b845840d9a5a16c8ce3e488961b3
humanhash: oranges-nuts-river-delta
File name:HL-88352588 DOCAU BC ORIGINAL.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'037'312 bytes
First seen:2021-04-16 02:33:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:jLb/zyimtwz4Tbg6ex3SefzmZ6qbanc6qvx5eXcS0Qsp5fKJq6qBp+:D+DTbgXSf6cacFvxyLU4Jq6ip+
Threatray 3'976 similar samples on MalwareBazaar
TLSH CB255B9B22F45E57F0BE5773906330C493FBAC47DB16C2AD3DD150A82D62A81A62DF12
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HL-88352588 DOCAU BC ORIGINAL.exe
Verdict:
Suspicious activity
Analysis date:
2021-04-16 02:47:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4fbb9881-885f-4ea1-bcac-394303e4067b

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/135723/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.646-1.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/679181
Signature
.NET source code contains very large array initializations
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
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 388543 Sample: HL-88352588 DOCAU BC ORIGINAL.exe Startdate: 16/04/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 6 other signatures 2->47 6 HL-88352588 DOCAU BC ORIGINAL.exe 3 2->6         started        9 zUbDt.exe 3 2->9         started        12 zUbDt.exe 2 2->12         started        process3 file4 23 C:\...\HL-88352588 DOCAU BC ORIGINAL.exe.log, ASCII 6->23 dropped 14 HL-88352588 DOCAU BC ORIGINAL.exe 2 9 6->14         started        49 Multi AV Scanner detection for dropped file 9->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->51 53 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->53 19 zUbDt.exe 2 9->19         started        55 Injects a PE file into a foreign processes 12->55 21 zUbDt.exe 2 12->21         started        signatures5 process6 dnsIp7 29 mail.prinutrition.com 192.254.180.165, 49743, 49746, 587 UNIFIEDLAYER-AS-1US United States 14->29 31 192.168.2.1 unknown unknown 14->31 25 C:\Users\user\AppData\Roaming\...\zUbDt.exe, PE32 14->25 dropped 27 C:\Users\user\...\zUbDt.exe:Zone.Identifier, ASCII 14->27 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Tries to steal Mail credentials (via file access) 14->35 37 Tries to harvest and steal ftp login credentials 14->37 39 3 other signatures 14->39 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08/
Threat name:
ByteCode-MSIL.Infostealer.Coins
Create hunting rule
Status:
Malicious
First seen:
2021-04-15 00:50:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
104
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=54eeuag2hrplhha636i5iumhn2ejw5mqh54qecyg5d4cdivvdiea._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
06b4de3d0ea9895ad2d5d1139d3fbc9a671890e8a66c3b7607351ac10fa30562
AgentTesla
0872a1be0db0ddeab0c9d4d52d457d76f5a0a02239bbe31882e5d7493af9992c
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649105b741f01b51a9847e93d24d0024d854429a1de1144738a7348c57a1931a
AgentTesla
6995fbe6e27b74546ac4ab82c7b00fe00884209e62d2b689b9ff3826752ca20e
AgentTesla
74b724569a5927bac6986864470763a88854802f63eb19571569da6276d542d2
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80e3d3585a4c54b56fc56c4c565f85b376363da6f07b4e186e92608846a414d4
AgentTesla
b852dbb19b335378582a2ec131f5a362c51a4d8c63bd832cd9afd4c064d449fa
AgentTesla
cd54e4b043619a391ad6cd9fa99e7c22e8d7321d9a98d1fa3b7ea8526cb688ab
AgentTesla
cfaf2a1e319347dce73ecee82c0d0675caf292b21c91f18d1b6dbbb6d584a246
AgentTesla
e70d1958db5ff44e5bbeb627b3baefcc79a153df4eb262cb9aef56c7ed555d75
AgentTesla
+ 3'966 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210416-c6a3vffpmx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
5e0f3da625a479a5e7e807b5f09c889d95474139410b312ba3a39bcb05976729
MD5 hash:
3d20c2ea9ac04e1707f853bb1780bc18
SHA1 hash:
805e90b023eb92d44bbe11daefce6edbe872cb74
Link:
https://www.unpac.me/results/cb75db50-2d52-44b1-8ce7-99a8e79a6c97/
SH256 hash:
ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08
MD5 hash:
b8b6b845840d9a5a16c8ce3e488961b3
SHA1 hash:
5d13aff5b7a667805f0a97a87a30df84b658b00a
Link:
https://www.unpac.me/results/cb75db50-2d52-44b1-8ce7-99a8e79a6c97/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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 810d682b8fb4a3eb77efdabaa6203c715f5457e61e48736127148c4d44bc2bf9

AgentTesla

Executable exe ef084a00da3c5eb39c1edf91d451876e889b75903f79020b06e8f821a2b51a08

(this sample)

  
Dropped by
MD5 10c36d3b9d51b0b753c4d1c14d38110a
  
Dropped by
SHA256 810d682b8fb4a3eb77efdabaa6203c715f5457e61e48736127148c4d44bc2bf9
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/135723/

Comments