MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842
SHA3-384 hash: e9fd9d0015ec84efecb489dba300bd5d63c071db75d3efc32d76be051b7d4b1b0f52724c4ef934c56c870b1560f62f97
SHA1 hash: d34260f61c9924d5b930500793cb26790fc1f71e
MD5 hash: 7b2a0af9c2e205c94e844ad81f8a5e28
humanhash: grey-two-friend-fruit
File name:Bestar Steel RFQ 0100423(MECH)NBI April-1423.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:761'344 bytes
First seen:2023-04-18 10:44:55 UTC
Last seen:2023-04-18 12:22:42 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 12288:y/MiJO0BLWwL/Gl6uldjwUyhhUh/GsE0C3OWQqpiHHsYsr9ws7LB:ytI04YnulW3CO7hOW5SHsYsZwCLB
Threatray 160 similar samples on MalwareBazaar
TLSH T1C3F49D39399F0226E47AC7738A57F020E3BDAC2BB11DF9192CD3218446E798774E526D
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 13332f0f0f3b3333 (12 x AgentTesla, 1 x VIPKeylogger)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
233
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Bestar Steel RFQ 0100423(MECH)NBI April-1423.exe
Verdict:
Malicious activity
Analysis date:
2023-04-18 10:48:01 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/a27cf6d8-61d4-4aac-9253-69cf52e36f9e

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/382980/
Detection(s):
SecuriteInfo.com.Trojan.Olock.1.25909.9946.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys comodo lokibot packed
Link:
https://www.filescan.io/uploads/643e74af48716a65fb204a9a/reports/2a41f474-f682-4d3f-a91c-31bde50b314a/overview
Verdict:
Malicious
Labled as:
Trojan.Olock.Generic
Link:
https://www.hybrid-analysis.com/sample/856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e78d56aa-6a47-4ae7-858c-2a0c29626095
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1215853
Signature
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 848777 Sample: Bestar_Steel_RFQ_0100423(ME... Startdate: 18/04/2023 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 7 Bestar_Steel_RFQ_0100423(MECH)NBI_April-1423.exe 6 2->7         started        11 mDCsLcbtJNBW.exe 5 2->11         started        process3 dnsIp4 31 C:\Users\user\AppData\...\mDCsLcbtJNBW.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmpEF7F.tmp, XML 7->33 dropped 35 Bestar_Steel_RFQ_0..._April-1423.exe.log, ASCII 7->35 dropped 49 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->51 53 Uses schtasks.exe or at.exe to add and modify task schedules 7->53 14 Bestar_Steel_RFQ_0100423(MECH)NBI_April-1423.exe 15 2 7->14         started        18 schtasks.exe 1 7->18         started        37 192.168.2.1 unknown unknown 11->37 55 Machine Learning detection for dropped file 11->55 57 Injects a PE file into a foreign processes 11->57 20 mDCsLcbtJNBW.exe 14 2 11->20         started        23 schtasks.exe 1 11->23         started        file5 signatures6 process7 dnsIp8 39 api.telegram.org 149.154.167.220, 443, 49695, 49697 TELEGRAMRU United Kingdom 14->39 59 Moves itself to temp directory 14->59 25 conhost.exe 18->25         started        29 C:\Users\user\AppData\...\tmpG667.tmp (copy), PE32 20->29 dropped 61 Tries to steal Mail credentials (via file / registry access) 20->61 63 Tries to harvest and steal browser information (history, passwords, etc) 20->63 65 Installs a global keyboard hook 20->65 27 conhost.exe 23->27         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842/
Threat name:
ByteCode-MSIL.Trojan.Olock
Create hunting rule
Status:
Malicious
First seen:
2023-04-18 10:45:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
11 of 37 (29.73%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvwixn24foghtom7sje4eaosba4ckguuut4dbl5htfndv4evfbba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
145ac60ec975bb0a649e3b056fba500a2877dad80ee5453c947413c7d5218caa
AgentTesla
22e3090c5432ccc3c56e3b99a751860fee379b076884c809b3b2aee878a5b8b7
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24c69122ace7d707b1838376111192f2bcdbd02531521b656536773b8bc4710c
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99f8b58cc35942ee1263c39d53425a6317ca0ded571c82539398e7f1822d20c4
AgentTesla
bf670829499b37ad382f284f9dfdcc58df3862f419f070b0c13ec3377f0dfb88
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bf8367d58b9a68f0158e3cf13ab1f8f4d1d0f5ff915f31ab8fc0c659bcb90757
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c7f0e4ce6d95ce821671196d361bcd2eb1ac9f6837fd4693968fda7b4f926eac
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e243d0a700da6bff5f3e2d6c2394b569d1c3bbcfbda8c78893cee08f40536e9a
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f030a4a82db3734a227b011d76767f6f8b9031ea4666aff7b42d8e0d69d6acea
AgentTesla
+ 150 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230418-mtds2aah54/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5409839916:AAEYUYZy0IhJQAm4VXi620si4okGW8FDL2w/
Unpacked files
SH256 hash:
8ee80621e6405d276617121c1b35b15ffd496228a004add8656f376286a1b2ef
MD5 hash:
5122094eecf664d70af0cbdf125f7d38
SHA1 hash:
ee7adcb2acf4ebda679e198ac21b2728253a1bec
Link:
https://www.unpac.me/results/80161e5b-8484-4897-b9d1-0e7db3f1290c/
SH256 hash:
10fbf76f5b6f715fc3c136103b5e4b757d184fd2b77d64fc5304c36eaea063d1
MD5 hash:
6894612b52ce435495ea7e5ee9415add
SHA1 hash:
bd772aaee326db17ff27df0359f77c8091c2914a
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/80161e5b-8484-4897-b9d1-0e7db3f1290c/
Parent samples :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 hash:
ea8d4c91ec5bba5e1db6c17730d7ba5cdbb5ff3c1a777f70c90e91ce599d9b5d
MD5 hash:
27f5124bf8f451bca8d8a15c73c4f521
SHA1 hash:
5fd557e109b8fd1c3b362b64f0ba9f1600c07211
Link:
https://www.unpac.me/results/80161e5b-8484-4897-b9d1-0e7db3f1290c/
SH256 hash:
856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842
MD5 hash:
7b2a0af9c2e205c94e844ad81f8a5e28
SHA1 hash:
d34260f61c9924d5b930500793cb26790fc1f71e
Link:
https://www.unpac.me/results/80161e5b-8484-4897-b9d1-0e7db3f1290c/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/856c8bb75c2b/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/856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842

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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_d3ac2b2f
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 856c8bb75c2b8c79b99f9249c201d20838251a94a4f830afa7995a3af0952842

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/382980/

Comments