MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152
SHA3-384 hash: 1e02dca686c7d6a63bdb7da1fd0a7e9e9595528f4f19ec848f1255f8da7dc9c37d428de911f821f6dfd40e5ad60b07a4
SHA1 hash: d4323f393b3173b659d7a0ad141f3bf20bf6fab9
MD5 hash: 4cc5d0fb63f2bbfd66092a041342d045
humanhash: black-may-johnny-batman
File name:Bright Instrument INQUIRY PO21019612.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:678'912 bytes
First seen:2023-07-21 07:23:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:YWc/bUYIsYolnJ4wEEx4PlVwJTQy0vXKRraRLNocRotFRSOcUqfflJY7gLNJSf06:TiXrYoXZEwglVUTQy0v6RraRGcRcaOc0
Threatray 524 similar samples on MalwareBazaar
TLSH T181E4131232685DD3E4A95EF14462A11447B5A214312BC3DC8CF236C63EE73C6BAA5FDB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 8e336969f071338e (7 x AgentTesla, 3 x SnakeKeylogger, 2 x Formbook)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
278
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Bright Instrument INQUIRY PO21019612.exe
Verdict:
Malicious activity
Analysis date:
2023-07-21 07:23:45 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/27078f72-17ae-4123-bac0-b276ada31e05

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/427351/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.37311.15260.24318.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e914b220-5506-4122-ab21-76c1e26d69d7
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1277304
Signature
Adds a directory exclusion to Windows Defender
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1277304 Sample: Bright_Instrument_INQUIRY_P... Startdate: 21/07/2023 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Sigma detected: Scheduled temp file as task from temp location 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 3 other signatures 2->49 7 Bright_Instrument_INQUIRY_PO21019612.exe 7 2->7         started        11 CiTVoCjY.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\Roaming\CiTVoCjY.exe, PE32 7->31 dropped 33 C:\Users\...\CiTVoCjY.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp6220.tmp, XML 7->35 dropped 37 Bright_Instrument_..._PO21019612.exe.log, ASCII 7->37 dropped 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 55 Adds a directory exclusion to Windows Defender 7->55 13 Bright_Instrument_INQUIRY_PO21019612.exe 2 7->13         started        17 powershell.exe 19 7->17         started        19 schtasks.exe 1 7->19         started        57 Multi AV Scanner detection for dropped file 11->57 59 Machine Learning detection for dropped file 11->59 61 Injects a PE file into a foreign processes 11->61 21 CiTVoCjY.exe 2 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 39 us2.smtp.mailhostbox.com 208.91.198.143, 49700, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->39 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        41 208.91.199.225, 49701, 587 PUBLIC-DOMAIN-REGISTRYUS United States 21->41 63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->63 65 Tries to steal Mail credentials (via file / registry access) 21->65 67 Tries to harvest and steal browser information (history, passwords, etc) 21->67 29 conhost.exe 23->29         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-20 20:03:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wxzymtkdf54i76lw6fbqzlrwf2bosbxc4mtaylkpuovt3c7qifja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
AgentTesla
45bebb479e4a722bfb0c85d398ff1c0372e1dc28acf05ecd21cf3a548cb4b79b
AgentTesla
5516bb55a913a6b1603ef303e563b22ede0bf361be46f37f3b22f66670079790
AgentTesla
58f4506f8082cd93f9f94cdc8c9b7ac1ee8a4eb19f3195fff2aea87c6949ca6e
AgentTesla
62b09bf1931ef9545b10b0bae3eb45a9896fec6add45690ddf95074378e71528
AgentTesla
830b93cdc24c1d75ee7ba0afcaddb58690f9d3ff96ded60ea5657768b188d301
AgentTesla
9d31c9cc465643be87d49f2b8be2a4500e8f5ab048e6327f407942fd8f02da53
AgentTesla
b9cecf45cfc96014113cba345c3f917d598fb372f7b86e23d36f3ff3851d504a
AgentTesla
bfde4e4d95b159f2567c39229e702fc4bba9c53dbd579855ce487794a6759aa0
AgentTesla
fd36434871eb55ee3d9f78ee0fd63f26c915f8d5a7d3848ef6ffddcac75893cc
AgentTesla
+ 514 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230721-h8dpcsdb7y/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
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:
3f68cc843eb3b2a764dc02355e2e3f97dce8f1164d6f18a4f77e850410dfc137
MD5 hash:
60126f10641986bbcefca9ed6159994b
SHA1 hash:
df584155d49b10805f1f0d81a758e98b23990815
Link:
https://www.unpac.me/results/f4309b4e-d791-4ba3-8de6-dac58326559c/
SH256 hash:
63b26f1c186a61dfa8133b82c4896d58510d96902f97cf4763ca89359b716f7f
MD5 hash:
86e18345b0326adf4a8db48277d2f08b
SHA1 hash:
7ed41f9908c3d1df3ce92370e24a34d5d294d8ad
Link:
https://www.unpac.me/results/f4309b4e-d791-4ba3-8de6-dac58326559c/
SH256 hash:
060b2a654bda88d45f073f73fac8a4884093506344493bfe2819eca5b407aba8
MD5 hash:
0202cfd26b7f97dd862f2dcd0ef2402f
SHA1 hash:
5d9055f254ce3ab4d3a936919154811822c0453e
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/f4309b4e-d791-4ba3-8de6-dac58326559c/
Parent samples :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 hash:
6cc9ff37f5c5910f476ba7229c7630fc85104b7388d96b144ba636cac5f0ac26
MD5 hash:
019a3a0dc701af7997908e7f6c882f2a
SHA1 hash:
347889244b82aa9b4448649409de969b68b7f0e3
Link:
https://www.unpac.me/results/f4309b4e-d791-4ba3-8de6-dac58326559c/
SH256 hash:
b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152
MD5 hash:
4cc5d0fb63f2bbfd66092a041342d045
SHA1 hash:
d4323f393b3173b659d7a0ad141f3bf20bf6fab9
Link:
https://www.unpac.me/results/f4309b4e-d791-4ba3-8de6-dac58326559c/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b5f3864d432f/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/b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe b5f3864d432f788ff976f1430cae362e82e906e2e3260c2d4fa3ab3d8bf04152

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/427351/

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