MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94
SHA3-384 hash: 863ade329342410114fd00b8182fac1197f50e534f6d3a378c1851d18691397fb20934ae4f3445774323a522bcb899d6
SHA1 hash: ea4f70a0efe0cf3ea841a93878387f493b6227fb
MD5 hash: fbb2c0bc1b3a6b515e8dd46be330af00
humanhash: bakerloo-missouri-fish-missouri
File name:2023 Customer Information Export(1).docx.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:704'000 bytes
First seen:2023-10-05 09:22:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:MU+d94SVrrhKI59r/oXsr8YJciAQaZkY/ghOnvb:MU+7XLzrysLXCr/wOvb
Threatray 90 similar samples on MalwareBazaar
TLSH T1E3E47C2176FAEFA2C135E77B43543504CFEEAD328716F95E3C99B6856C30DC18A22612
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 31f098b29298f031 (53 x AgentTesla, 30 x Formbook, 12 x RedLineStealer)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
2023 Customer Information Export(1).docx.exe
Verdict:
Malicious activity
Analysis date:
2023-10-05 09:24:31 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/2864f2d4-2865-4c24-9dda-2665e9e71bb8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.16259.21233.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/651e80797e001f82cf77e06b/reports/a4c5a621-cfeb-4be8-ad0d-52e4e7764d8f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94
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/c0bd667c-c2ed-4f47-a24f-16cda17fad8b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1320150
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320150 Sample: 2023_Customer_Information_E... Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 43 mail.frontierfulfillment.com.my 2->43 45 api4.ipify.org 2->45 47 api.ipify.org 2->47 53 Snort IDS alert for network traffic 2->53 55 Found malware configuration 2->55 57 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->57 59 10 other signatures 2->59 8 2023_Customer_Information_Export(1).docx.exe 6 2->8         started        12 ydCHaLBj.exe 5 2->12         started        14 FndrE.exe 2->14         started        16 FndrE.exe 2->16         started        signatures3 process4 file5 39 C:\Users\user\AppData\Roaming\ydCHaLBj.exe, PE32 8->39 dropped 41 C:\Users\user\AppData\Local\...\tmp7767.tmp, XML 8->41 dropped 71 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->71 73 Uses schtasks.exe or at.exe to add and modify task schedules 8->73 75 Writes to foreign memory regions 8->75 18 RegSvcs.exe 16 4 8->18         started        23 schtasks.exe 1 8->23         started        77 Multi AV Scanner detection for dropped file 12->77 79 Machine Learning detection for dropped file 12->79 81 Injects a PE file into a foreign processes 12->81 25 RegSvcs.exe 3 12->25         started        27 schtasks.exe 1 12->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        signatures6 process7 dnsIp8 49 mail.frontierfulfillment.com.my 14.102.148.26, 49692, 49694, 587 IPSERVERONE-AS-APIPServerOneSolutionsSdnBhdMY Malaysia 18->49 51 api4.ipify.org 173.231.16.77, 443, 49691, 49693 WEBNXUS United States 18->51 37 C:\Users\user\AppData\Roaming\...\FndrE.exe, PE32 18->37 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->61 63 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->63 65 Tries to steal Mail credentials (via file / registry access) 18->65 33 conhost.exe 23->33         started        67 Tries to harvest and steal browser information (history, passwords, etc) 25->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->69 35 conhost.exe 27->35         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 14:30:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
18 of 22 (81.82%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qq4kyv2f6nzjfkodngj24t7qb6z7hzjkxudv2lx3by2ydtq3r2ka._file
Verdict:
malicious
Similar samples:
0a1dcba0bacf1df52c396bb63052e7e867e567067be6785ab057fc9ffe35f2f8
AgentTesla
2bb773e136439075cac3a339b5699b0036a0896c1f2689162d816d673fa72d95
AgentTesla
40d0a5c663f59b7454e4e8535918b57ccba56e5f445d02e384debb16b868ebce
AgentTesla
4a699a693c63228aebd3e0bc98d92fe2d8bb7ae487992e81cfee767f0b9ed1bf
AgentTesla
89bc9fdb7d1d93a49c7cf3ccfff8ec5c174a44dd580e63e3cb47de448e9daefc
AgentTesla
c7825ac17db3d7a4fca371b94a6bc4aa7d22e40bfa10e24b0c3ef063c82de7d5
AgentTesla
e1588fa2fbba71b436afb6df74166ffc100c422257b8c259debb07f3201bffeb
AgentTesla
eded555a7a575a6335ccc1c59ac51b58eb00ba3f43a0d5ed66f2af28f4d3bcf6
AgentTesla
f4467d8859d174c9edf5b596e96c4456a6aa0259bdee1d72697a76aab5f2f899
AgentTesla
f94a62b2332593b4de3797cb1fb3127a682f2623d12e5f731157190526f6ef5c
AgentTesla
+ 80 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231005-lcgb6abh57/
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
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
62206234b0b1d105ce9dfe6ea0c5948f6d7ee18cec2ed5b65b21e7120de565be
MD5 hash:
04b623e012d84b44d58696af4f2476d9
SHA1 hash:
a861bab407bca504c12e57903d398fc2097daf2e
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/50278455-8a83-4baa-92ed-55e3f73d9f8f/
Parent samples :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 hash:
6b6f0d0008346e351a105a7839d85b9aaae5b3c957c28618dcbc347c5c9db77f
MD5 hash:
fc82262057015206c59954e04996f8ac
SHA1 hash:
8650746ca799d0bc8020a5383b03b3d747ee889b
Link:
https://www.unpac.me/results/50278455-8a83-4baa-92ed-55e3f73d9f8f/
SH256 hash:
7829e78c5cc44285e3ead1ff663c1763c31b07ef30611c99ed53efa19af76b3a
MD5 hash:
2529ac63153f35e4a3a119bad08e09f9
SHA1 hash:
68ed47c511c5507333af1641a5f5ba51f88d756d
Link:
https://www.unpac.me/results/50278455-8a83-4baa-92ed-55e3f73d9f8f/
SH256 hash:
8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94
MD5 hash:
fbb2c0bc1b3a6b515e8dd46be330af00
SHA1 hash:
ea4f70a0efe0cf3ea841a93878387f493b6227fb
Link:
https://www.unpac.me/results/50278455-8a83-4baa-92ed-55e3f73d9f8f/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8438ac5745f3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94

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:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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_bytecodes_sep_2023
Create hunting rule
Author:Matthew @embee_research

File information

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

Malspam

AgentTesla

Executable exe 8438ac5745f37292a9c36993ae4ff00fb3f3e52abd075d2efb0e3581ce1b8e94

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments