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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f
SHA3-384 hash: 37bcb0751517f77ac069560dd1d40285673da9687889747135e13d3926430d2022032ee9b8047d25c03fba3f42d49536
SHA1 hash: eff123e882c01bfafabc2764a54acded1edcf543
MD5 hash: c82fa8804c0897f9864202f15fed43b3
humanhash: london-ceiling-maryland-winter
File name:Produccion.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:239'536 bytes
First seen:2024-08-26 05:46:12 UTC
Last seen:2024-08-26 06:24:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 17b7d61bda0f7478e36d9ce3d4170680 (23 x GuLoader, 7 x AgentTesla, 6 x njrat)
ssdeep 6144:1iucV67eej6hjGTjjMJUH35XW2vT/FAjTcpYmuFvPvtrkI:1iuLeNhjGbMaX5XPr/CWYzFvPvtII
TLSH T1A134122035D498ABF2EB9F720E7BF6BDEDB3D7407815065F5360AE186A3138B500D15A
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:AgentTesla exe signed

Code Signing Certificate

Organisation:Autoklav
Issuer:Autoklav
Algorithm:sha256WithRSAEncryption
Valid from:2023-09-23T07:46:20Z
Valid to:2026-09-22T07:46:20Z
Serial number: 1ef0414ffcd5aba6d3dea5feb86950623ab14769
Thumbprint Algorithm:SHA256
Thumbprint: 655b8894c7a51793fcfa4eee70b1cdd5f1510eba6c31714201d47bef05b57f5a
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
407
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Produccion.rar
Verdict:
Malicious activity
Analysis date:
2024-05-15 12:11:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2c7a8085-520b-43b8-8ce1-27bbd9d33b34

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.MulDrop27.20915.7486.31872.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66cc16d7e7ff3f5a063bf9eb
Tags:
Encryption Execution Network Static Variant
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Creating a file in the %AppData% subdirectories
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Verdict:
Malicious
Labled as:
Tedy.Generic
Link:
https://www.hybrid-analysis.com/sample/88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/d0da9228-5686-4460-8f77-b94366cff8ff
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1498873
Signature
Antivirus / Scanner detection for submitted sample
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Obfuscated command line found
Query firmware table information (likely to detect VMs)
Switches to a custom stack to bypass stack traces
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1498873 Sample: Produccion.exe Startdate: 26/08/2024 Architecture: WINDOWS Score: 96 42 drive.usercontent.google.com 142.250.31.132, 443, 49787 GOOGLEUS United States 2->42 44 drive.google.com 172.253.122.139, 443, 49786 GOOGLEUS United States 2->44 46 3 other IPs or domains 2->46 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected GuLoader 2->54 8 Produccion.exe 3 91 2->8         started        signatures3 process4 file5 34 C:\Users\user\...\Photogrammeter.Fde18, OpenPGP 8->34 dropped 36 C:\Users\user\AppData\Local\...\nsn39AE.tmp, data 8->36 dropped 38 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\System.dll, PE32 8->40 dropped 56 Obfuscated command line found 8->56 58 Mass process execution to delay analysis 8->58 60 Switches to a custom stack to bypass stack traces 8->60 12 MoUsoCoreWorker.exe 8->12         started        15 cmd.exe 1 8->15         started        17 cmd.exe 1 8->17         started        19 277 other processes 8->19 signatures6 process7 dnsIp8 62 Query firmware table information (likely to detect VMs) 12->62 22 conhost.exe 15->22         started        24 conhost.exe 17->24         started        48 ax-0001.ax-msedge.net 150.171.27.10, 443, 49759, 49760 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->48 26 conhost.exe 19->26         started        28 conhost.exe 19->28         started        30 conhost.exe 19->30         started        32 266 other processes 19->32 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2024-05-14 21:49:10 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rc7t3wzzk47p3mgdkqgfkfwqtqrw57wh6nq7rg4hu26gdl63cbxq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240826-ggvywsyake/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6d04fa64-60d9-4e0a-bd92-c5d1593a627e
Unpacked files
SH256 hash:
5494025d21648fdb824a9f4c66d539b17283c7301bb1acbce62af8445173eee1
MD5 hash:
635a4d7f264997f031324ffb27c7abae
SHA1 hash:
99e86ddd2c896790dc4273b37bcb1d7d8ec2c390
Link:
https://www.unpac.me/results/bdac9583-003f-4cfe-878b-d0cb29be0972/
SH256 hash:
852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
MD5 hash:
be2621a78a13a56cf09e00dd98488360
SHA1 hash:
75f0539dc6af200a07cdb056cddddec595c6cfd2
Link:
https://www.unpac.me/results/bdac9583-003f-4cfe-878b-d0cb29be0972/
SH256 hash:
d1598ff69dffada008b80dc853f1ad043a343c3709155bbabd9c99d29e8b7702
MD5 hash:
d02dd688e9d32ec04300a04e49a1860c
SHA1 hash:
85be0111573fd80a0a0b782b319eed88cb3ecc97
Link:
https://www.unpac.me/results/bdac9583-003f-4cfe-878b-d0cb29be0972/
SH256 hash:
88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f
MD5 hash:
c82fa8804c0897f9864202f15fed43b3
SHA1 hash:
eff123e882c01bfafabc2764a54acded1edcf543
Link:
https://www.unpac.me/results/bdac9583-003f-4cfe-878b-d0cb29be0972/
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/88bf3ddb39573efdb0c3540c5516d09c236efec7f361f89b87a6bc61afdb106f

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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetWindowsDirectoryW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments