MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd
SHA3-384 hash: 6d5cd138ed7798e8728e157de73fa8769e47274efe13c8fea31a21e0b27307740aa8fff833635dfabb0c51e33406e372
SHA1 hash: 532685443c2bea0957cb94b9f05f94690504122a
MD5 hash: 2a445c368e9bda81aea6705d3e013a83
humanhash: neptune-iowa-autumn-alpha
File name:Purchase and Sales Contract.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:632'320 bytes
First seen:2023-05-01 07:19:41 UTC
Last seen:2023-05-13 22:55:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:nhaK7z3PMw/RZyZgklXrZHEApslEKpxrxW0EulnR7ILy0:zn3PMwDyZdVEApwHrrxWuR7ILD
Threatray 666 similar samples on MalwareBazaar
TLSH T1C5D49D63F139CADFED7137A5C159E795BE60D016E090F0A07E0A24C8DAA57E21F8C17A
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)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
431
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase and Sales Contract.exe
Verdict:
Malicious activity
Analysis date:
2023-05-01 07:21:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e8b82edb-3274-45e6-bc7c-b01343a22557

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/385779/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys comodo lokibot packed
Link:
https://www.filescan.io/uploads/644f6823463eacbc57db2fac/reports/35d4e40e-8a83-451a-a9b5-268b72ee255f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd
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/bf107738-3744-4884-b19e-faaccbddf047
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1223891
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
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: 856844 Sample: Purchase_and_Sales_Contract.exe Startdate: 01/05/2023 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 5 other signatures 2->47 7 Purchase_and_Sales_Contract.exe 7 2->7         started        11 GzCGBWg.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\RoamingbehaviorgraphzCGBWg.exe, PE32 7->31 dropped 33 C:\Users\user\...behaviorgraphzCGBWg.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp609A.tmp, XML 7->35 dropped 37 C:\...\Purchase_and_Sales_Contract.exe.log, ASCII 7->37 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 7->51 53 Adds a directory exclusion to Windows Defender 7->53 13 Purchase_and_Sales_Contract.exe 2 7->13         started        17 powershell.exe 19 7->17         started        19 schtasks.exe 1 7->19         started        55 Multi AV Scanner detection for dropped file 11->55 57 Machine Learning detection for dropped file 11->57 21 GzCGBWg.exe 2 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 39 us2.smtp.mailhostbox.com 208.91.199.223, 49697, 49698, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->39 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->59 61 Tries to steal Mail credentials (via file / registry access) 21->61 63 Tries to harvest and steal browser information (history, passwords, etc) 21->63 29 conhost.exe 23->29         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-04-30 16:56:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 37 (59.46%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zjp3rrs23mepuzizdsgj7umijs5xgcx475wjemlijppwwoq3n7oq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
2736bb21fab5703708ab49c3f24660ff1e8f2fc8745ae19bc422f5e6aff5f5d8
AgentTesla
3104fa64c32a8333437eecd7781d4617f221d12975b4167338dfff37a1022177
AgentTesla
326bfca24194b50bc52e6059290e9167fff08d742e07b6bee5209cbee4e87c50
AgentTesla
4d05e5393501f1ad0b8ef7afae8f786dd464cb527f541e2f7a4aec03ff7af34c
AgentTesla
69dcb21b36f6de65c945422621bc55badbebb0312518bd7f38b704d5a1ae7930
AgentTesla
6f661b49b6b38585c93365e01f17a50c585ac3ce7400f582c5c4541658cfe4f6
AgentTesla
8d41a5c262bd9bcdde87d6ee9322abebe831a18a143089576b7be05b985aff0e
AgentTesla
d77497cc30720ab4a1b768d7f20e4e3697fe53c06bd151b6c988ee903e0b6cff
AgentTesla
fdafe32c0a60e82305426118d16b5181852cb37f95b9bc1a15f1797357f7548b
AgentTesla
+ 656 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/230501-h53t3sef96/
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:
022de27797ad907f38356d85bfba612515f93fdcc357377e918e3c0fa19a82f5
MD5 hash:
e626eed502220e346217a6a67102899c
SHA1 hash:
f022a910ff2b1bc2282c216af70ce7ef826a139f
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
Parent samples :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 hash:
af0925e4c632166ff87032bc43ea4f85a3805db3782a49724d125f44c0731114
MD5 hash:
b9897ba5e468e516e162fd3790a9ddbc
SHA1 hash:
db264c796e4a36a45af11e8a7bf71cf0dadce0f0
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
SH256 hash:
f079b3c80f1497423e90833ccd982cf42bb424bb29dd031752b4f48dda1419c1
MD5 hash:
250e96147c3ee7dc984a59ec6bab0582
SHA1 hash:
c5efbb05e3d800738cad79f1becfbe7bd66926da
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
SH256 hash:
7c2f9cd9169d7a7c0fb2cefd2aaa98043dc0a3e6fac30d37c6f890a8fdd15646
MD5 hash:
d46ba8d91b4c14e7303ff45fded8d14c
SHA1 hash:
92279cbac081414c8eab8f01431925e0c6c3df0e
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
SH256 hash:
c8808b69b0f4d52c253e35b001da94086786b34162fd51daa3f17eda94bac7f0
MD5 hash:
da56041df789c24cb2a36a364431f766
SHA1 hash:
876e6c579d1092a76ce90c500c43af0cf11724a4
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
SH256 hash:
ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd
MD5 hash:
2a445c368e9bda81aea6705d3e013a83
SHA1 hash:
532685443c2bea0957cb94b9f05f94690504122a
Link:
https://www.unpac.me/results/5e44d3d2-4d96-425f-84a6-2ed9a3e9284e/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca5fb8c65adb/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/ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 ca5fb8c65adb08fa65191c8c9fd1884cbb730afcff6c9231684bdf6b3a1b6fdd

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/385779/

Comments