MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe
SHA3-384 hash: ca9fbc1e07243ade51e8454d18efe4085a9655272a9afd24dcdd8bd16c0c5afccf54f16b1fd42475d5f5fcc96338f944
SHA1 hash: b9d760d9d4bdcd243764ea860e3968e4f3aca942
MD5 hash: 9535f77699d58f860627e0588fac2a83
humanhash: coffee-white-potato-minnesota
File name:INV CONFIRMATION.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:535'552 bytes
First seen:2021-07-02 11:07:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:hBxiN7L0kAfPdFt3X2CnJekJDT28HzwRLdPgf3Hiv2a+Q8l6P0P3XV4TeI:hmNPVyt3/nJnJDrHkPgf3HFQ8l6P0
TLSH 09B4122C3BE9B09ED037DE7A66E53CA6A725B1326707411E5053438E1A1FD82CDB187B
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV CONFIRMATION.exe
Verdict:
Malicious activity
Analysis date:
2021-07-02 11:09:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b901ba25-e839-4c0f-9d8b-232a08e92387

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/169330/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.900-1.UNOFFICIAL
Create hunting rule

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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0046a5e3-d48d-4516-b1a4-640ba113e919
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811038
Signature
.NET source code contains very large array initializations
Found malware configuration
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 443449 Sample: INV CONFIRMATION.exe Startdate: 02/07/2021 Architecture: WINDOWS Score: 100 25 Found malware configuration 2->25 27 Multi AV Scanner detection for dropped file 2->27 29 Multi AV Scanner detection for submitted file 2->29 31 10 other signatures 2->31 7 INV CONFIRMATION.exe 6 2->7         started        process3 file4 19 C:\Users\user\AppData\...\RtDzNjQrmdxt.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpC030.tmp, XML 7->21 dropped 23 C:\Users\user\...\INV CONFIRMATION.exe.log, ASCII 7->23 dropped 33 Injects a PE file into a foreign processes 7->33 11 schtasks.exe 1 7->11         started        13 INV CONFIRMATION.exe 2 7->13         started        15 INV CONFIRMATION.exe 7->15         started        signatures5 process6 process7 17 conhost.exe 11->17         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-02 08:53:39 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xddfnnwf2w6rihkkrqwdlc5ocosnjzfg67rwh56qmcucq6xdts7a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210702-x89pm7f4rn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
3f336d3ebf1ba28ca541b7ff6bed05ca86a977b1636c7912741cd78251204b27
MD5 hash:
a7369728d1343aec94bb3921f7775441
SHA1 hash:
72607fa58fda6c3ce725bf13dd98ff69e47266a8
Link:
https://www.unpac.me/results/41661686-95c1-42a8-8dc5-b38613085ef0/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/41661686-95c1-42a8-8dc5-b38613085ef0/
SH256 hash:
a751b42b7da5a43b62930938bb32c51a93ee6a8e31493edb1eadf41ebf369f6f
MD5 hash:
1e4fdd9910ac913889a1cdc3eea7f695
SHA1 hash:
1e02a561001d263f110990e86b65bc7f0ff92e18
Link:
https://www.unpac.me/results/41661686-95c1-42a8-8dc5-b38613085ef0/
SH256 hash:
b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe
MD5 hash:
9535f77699d58f860627e0588fac2a83
SHA1 hash:
b9d760d9d4bdcd243764ea860e3968e4f3aca942
Link:
https://www.unpac.me/results/41661686-95c1-42a8-8dc5-b38613085ef0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe b8c656b6c5d5bd141d4a8c2c358bae13a4d4e4a6f7e363f7d060a8287ae39cbe

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/169330/

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