MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 903f140844764deeace11cb4295a020389de51b5bb69f3205b32d0c1d828ffa7. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 903f140844764deeace11cb4295a020389de51b5bb69f3205b32d0c1d828ffa7
SHA3-384 hash: 9e6f28eaab72a25621e42de9cfad6091c94a67a985468f8b8255ea1ffa3a3ac2bdb7c6794406a2a3d793f0b65249729f
SHA1 hash: 33c20dbae45201d460f07176551d3336b5b632d5
MD5 hash: b3cdcb90203d3da019e6ea1e61904f86
humanhash: carpet-nebraska-potato-spaghetti
File name:INV BL.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:906'752 bytes
First seen:2021-09-27 13:18:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:clpkU8iqSTiUryXbLUrMjgY6WDWAx/4darHujnoaLOAZ1saYe1L+DQnmLDMhhPsi:7gSIFmF+9QtiOjCF5+V5k8G
Threatray 10'300 similar samples on MalwareBazaar
TLSH T11815AD18A2589A0ED5BF8BFAA013101813BEEF767E4DD6049DC530E81E767BE09474B7
File icon (PE):PE icon
dhash icon cce4c4d8c8d0d0d0 (7 x AgentTesla, 2 x Formbook)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV BL.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 13:19:05 UTC
Tags:
keylogger stealer agenttesla
Link:
https://app.any.run/tasks/98776114-a5a5-42c8-860a-31a96126d151

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/192104/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c7a108e5-80d7-46c2-9ab2-381a39d247c3
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858998
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 491427 Sample: INV BL.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 46 mail.cubasa.com.mx 2->46 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Yara detected AgentTesla 2->60 62 7 other signatures 2->62 8 INV BL.exe 7 2->8         started        12 newapp.exe 5 2->12         started        14 newapp.exe 3 2->14         started        signatures3 process4 file5 40 C:\Users\user\AppData\Roaming\dUiebTJ.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpC938.tmp, XML 8->42 dropped 44 C:\Users\user\AppData\...\INV BL.exe.log, ASCII 8->44 dropped 64 Injects a PE file into a foreign processes 8->64 16 INV BL.exe 2 5 8->16         started        20 schtasks.exe 1 8->20         started        22 INV BL.exe 8->22         started        66 Multi AV Scanner detection for dropped file 12->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->70 24 schtasks.exe 1 12->24         started        26 newapp.exe 2 12->26         started        28 newapp.exe 12->28         started        30 newapp.exe 12->30         started        signatures6 process7 file8 36 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 16->36 dropped 38 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 16->38 dropped 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->48 50 Tries to steal Mail credentials (via file access) 16->50 52 Tries to harvest and steal ftp login credentials 16->52 54 2 other signatures 16->54 32 conhost.exe 20->32         started        34 conhost.exe 24->34         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/903f140844764deeace11cb4295a020389de51b5bb69f3205b32d0c1d828ffa7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 02:23:54 UTC
AV detection:
22 of 45 (48.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sa7ricceozg65lhbds2cswqcaoe54unvxnu7gic3glimdwbi76tq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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7f3f988d6ca1f6799c89ed9bdc4e890e0a4b8eb63b08ef424049fdf94514e431
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c240aec0fb05be2be43cb8880214259fc3a2a65e97b20f3e5256f5e5931c3352
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ed1b609945dd2a5897a22521443e85dea1310bcfd421e5f4c7eedf837197800c
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AgentTesla
+ 10'290 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/210927-qkh8yahag2/
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
Adds Run key to start application
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:
1b03aa52709bd908a6d94fb3138373b650def946ad0f18f56dbfb8116dbcf038
MD5 hash:
755b352ba393047d4b577b8762c1f9dd
SHA1 hash:
be08d4465d7732c367be3c9f39dc1f374df3ca19
Link:
https://www.unpac.me/results/44e43dc5-41dc-49b1-ab77-6bea14534e14/
SH256 hash:
bd4abd25974769ecf12ee949cfbf1ef1283379b3155abda6dd25951c74461344
MD5 hash:
513a5a10123a1960ec99dfb07660e377
SHA1 hash:
6936b9f6b106ea63ff9d208f410f221b029f0228
Link:
https://www.unpac.me/results/44e43dc5-41dc-49b1-ab77-6bea14534e14/
SH256 hash:
64e071202be54f78835c6f00bef3715faec10a3c13c2c1b6ac21a59ac7d1b6d5
MD5 hash:
966557b167fac5fdb3ad1fdd049515af
SHA1 hash:
625a77016cfdb013c9dd20ea3ef493bf993fba83
Link:
https://www.unpac.me/results/44e43dc5-41dc-49b1-ab77-6bea14534e14/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/44e43dc5-41dc-49b1-ab77-6bea14534e14/
SH256 hash:
903f140844764deeace11cb4295a020389de51b5bb69f3205b32d0c1d828ffa7
MD5 hash:
b3cdcb90203d3da019e6ea1e61904f86
SHA1 hash:
33c20dbae45201d460f07176551d3336b5b632d5
Link:
https://www.unpac.me/results/44e43dc5-41dc-49b1-ab77-6bea14534e14/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/903f14084476/report/overview.html
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/903f140844764deeace11cb4295a020389de51b5bb69f3205b32d0c1d828ffa7

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/192104/

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