MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00
SHA3-384 hash: 90d1b3cddb0cbf4bdf819187620c4fa0bc05d7e198b11fa0390bfceb96efe7998913bf0de2c1c1528642c8bc03d83bd1
SHA1 hash: 0ee599b3ec8fb544e099ebb5ec46cc48c603e757
MD5 hash: 7234a58b3e3d25448386af685b6ddfb5
humanhash: mexico-yankee-zulu-summer
File name:004102023-edocument-pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:658'944 bytes
First seen:2023-10-04 06:41:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:8q8zS55mFzyEM+3Llm+moXKQl/+Wi61IloWVlVZXgmI4BQm:8qf55qV7lm+moHDKoWVrVf/
Threatray 37 similar samples on MalwareBazaar
TLSH T1E8E4120532701B41CF3C87F75E761F5243B20A7BA166F914ADEAA0CA963EF4487A174B
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
342
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
004102023-edocument-pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-04 06:55:20 UTC
Tags:
stealer agenttesla trojan
Link:
https://app.any.run/tasks/c9410cb1-6a90-482e-9e55-a35e5592c3cc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.21940.12965.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/651d093dbe42b2ac8e59dcdb/reports/898608a5-6311-47c2-aeb3-f0411a471a5a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00
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:
Malicious
Link:
https://analyze.intezer.com/analyses/ad909258-005b-44d5-8f1d-b8676002e698
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319228
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1319228 Sample: 004102023-edocument-pdf.exe Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Found malware configuration 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 10 other signatures 2->49 7 DuzFCZbZCY.exe 5 2->7         started        10 004102023-edocument-pdf.exe 7 2->10         started        process3 file4 51 Antivirus detection for dropped file 7->51 53 Multi AV Scanner detection for dropped file 7->53 55 Machine Learning detection for dropped file 7->55 61 2 other signatures 7->61 13 RegSvcs.exe 2 7->13         started        17 schtasks.exe 1 7->17         started        19 RegSvcs.exe 7->19         started        35 C:\Users\user\AppData\...\DuzFCZbZCY.exe, PE32 10->35 dropped 37 C:\Users\user\AppData\Local\...\tmp7858.tmp, XML 10->37 dropped 57 Uses schtasks.exe or at.exe to add and modify task schedules 10->57 59 Adds a directory exclusion to Windows Defender 10->59 21 RegSvcs.exe 2 10->21         started        23 BackgroundTransferHost.exe 10->23         started        25 powershell.exe 21 10->25         started        27 schtasks.exe 1 10->27         started        signatures5 process6 dnsIp7 63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->63 65 Tries to steal Mail credentials (via file / registry access) 13->65 67 Tries to harvest and steal browser information (history, passwords, etc) 13->67 29 conhost.exe 17->29         started        39 cp7nl.hyperhost.ua 185.174.172.194, 49723, 49724, 49725 ITLDC-NLUA Ukraine 21->39 41 192.168.2.1 unknown unknown 21->41 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->69 31 conhost.exe 25->31         started        33 conhost.exe 27->33         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00/
Threat name:
ByteCode-MSIL.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 05:36:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dcsiomnrjdsz5t72owzzfvzjmpi2py4geapjorpld4dbnhgtpuaa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
00dc35f39503924bff98f40ac52100ab2882ed22cdf8a3e4a9ec2f1797736aaa
AgentTesla
09cab28b90799facd47c9a949855955c635efef849dd8896110e8376ff7f1458
AgentTesla
0e84afe68234f625e08be5460e469a3cd13eb24d28f0a371539d93728bacbd87
AgentTesla
43b81d0ca2373e9f8746005bff03564656b711c3a0d9e81a632f703a420e1cd6
AgentTesla
6d8070624c9a9acdd20093644d4baa5481bb5a3e9ccc113e6a140bd721808585
AgentTesla
7266208dc8fb418f47fef760b7c35196336e8f2e3822108df59636d125d3568d
AgentTesla
8192f84102d9071fc922c436f69660b5be0bdb300adaa212295f84f985bbc5ea
AgentTesla
af5181b58209a8a6e973d806ba6e2321e7aba08b3bd56012d4f159a7b2f51ac2
AgentTesla
eded555a7a575a6335ccc1c59ac51b58eb00ba3f43a0d5ed66f2af28f4d3bcf6
AgentTesla
f171f8699ea2ebefdf7cdf2665d344cb46d0095c3fd89da5ed3c2bc0bdb3aaf3
AgentTesla
+ 27 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/231004-hgcb8ahe9z/
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
AgentTesla
Unpacked files
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/c7a2300e-6c15-4fdd-9def-96c2e0473758/
SH256 hash:
e82de6cd63d0f704ccb5b5461bfff3d9ad6f3bc4476ff9bf7728dca5358b141b
MD5 hash:
683cd83dd96788b23766385ac11795ac
SHA1 hash:
cffe4920a1d9410ce39c335736d3d88880881c0b
Link:
https://www.unpac.me/results/c7a2300e-6c15-4fdd-9def-96c2e0473758/
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
Link:
https://www.unpac.me/results/c7a2300e-6c15-4fdd-9def-96c2e0473758/
SH256 hash:
fede5de7ba021a4161b0e9f54450a001e7bf3fe8b57ec121a1d865bab2686a5e
MD5 hash:
2787233bd6ac7ce901deaa0723caf57c
SHA1 hash:
0fdab9f0628b1c6d2d17fd6ee368cf85c3869224
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/c7a2300e-6c15-4fdd-9def-96c2e0473758/
Parent samples :
50e4835850ee29165da0e08a40f53e94040152eab0989ef09805cb8517f92467
18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00
024304e93204137109cf964f3453fdbccd0519dd3c7b5817f655590b070a80e8
SH256 hash:
18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00
MD5 hash:
7234a58b3e3d25448386af685b6ddfb5
SHA1 hash:
0ee599b3ec8fb544e099ebb5ec46cc48c603e757
Link:
https://www.unpac.me/results/c7a2300e-6c15-4fdd-9def-96c2e0473758/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/18a48731b148/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/18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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

File information

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

Malspam

AgentTesla

Executable exe 18a48731b148e59ecffa75b392d72963d1a7e386201e9745eb1f06169cd37d00

(this sample)

  
Delivery method
Distributed via e-mail attachment

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