MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 655a38b1686aa4f75f6dd4f2b59c8e9e09cde9997b46bafbe4e3dee38d859c99. 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 4 File information Comments

SHA256 hash: 655a38b1686aa4f75f6dd4f2b59c8e9e09cde9997b46bafbe4e3dee38d859c99
SHA3-384 hash: 6c7367415608f3db9ba06b2b3263469634d659a213c1381ec7f0b159b96d72f589bdb7c85ef29c70a30239e500ac72df
SHA1 hash: 379c013437d1f2956eb40772281754545a6ad124
MD5 hash: 861b8fa009a52d4a2a0484b8c2673fb3
humanhash: uniform-crazy-six-earth
File name:Ferrecsa D701163.pdf.exe
Download: download sample
Signature AgentTesla
File size:1'241'600 bytes
First seen:2024-08-18 16:34:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (60 x Formbook, 23 x AgentTesla, 20 x RemcosRAT)
ssdeep 24576:jiUmSB/o5d1ubcv7HAUJDeRSCJvYDxsHWaNL5ZUPNZjk9WtI5CtbXosz67:j/mU/ohubcv77qRNBSMNLgPNYWi5Ctzc
Threatray 3'806 similar samples on MalwareBazaar
TLSH T16C45332686D0D520D222D3F6D8368DA006597961CD9A3BBD43DCF26EADB5387DC02F4E
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
326
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
Ferrecsa D701163.pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-08-18 16:41:53 UTC
Tags:
netreactor stealer agenttesla ftp

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Stealth Malware
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit lolbin masquerade microsoft_visual_cc packed packed packed shell32 upx
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Binary is likely a compiled AutoIt script 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 sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Suspicious Double Extension File Execution
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-08-08 17:50:37 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla credential_access discovery keylogger spyware stealer trojan upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Unpacked files
SH256 hash:
7bf201dc252bf98628c26a679e59a24865b78f111e1787d68b3859d4b851ad75
MD5 hash:
e22fff61fc74627ec2646681f9203ec8
SHA1 hash:
f9c37c40c325eda335f14675564bd18cf2092802
Detections:
win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 MALWARE_Win_AgentTeslaV2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
1feba65bd2aa62dc3cad4b386b25e5a5922cfaaa4f0c1aecff536bf10f54dc12
MD5 hash:
21ca6aa79257797cfcf81faf284a9f89
SHA1 hash:
bb55c21f04bd9a0d6fbd40f7129ec68344bd524e
SH256 hash:
5a060a703d97e8fc790dd5a904cd481b21f83ed158d4deb89d11aa9d58e5d6e3
MD5 hash:
60d3b81d44f116b490fd4bb338b1d005
SHA1 hash:
a38674132e57ac27fcb3d9bdd72beff3aa146015
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
25b5214317428b6661d063585c9de0ceb173e0cbf529069873599ac09f179ae9
MD5 hash:
a09ba49a164d02715cea9498b85dadb3
SHA1 hash:
5cb0c737d9fb738c36ca64082b53cd2d816b6e8b
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
cf266b1b5c417e23996b1420d91f82b720e7f1da6818f4c8b76ff4b74daabafe
MD5 hash:
e4af556908f7daeb3fdfbfb67878a333
SHA1 hash:
32cb66d1228a53bbaddc85db18354083b8b8952b
SH256 hash:
ae5b8f943a55f38a69cab9d15a5c21a24216fbc57b8d321cb763d597df92d90f
MD5 hash:
9685f8ca41bec85bb6798104f5154828
SHA1 hash:
389232cb73de8061ed800318399610c75635f17c
Detections:
AutoIT_Compiled
SH256 hash:
655a38b1686aa4f75f6dd4f2b59c8e9e09cde9997b46bafbe4e3dee38d859c99
MD5 hash:
861b8fa009a52d4a2a0484b8c2673fb3
SHA1 hash:
379c013437d1f2956eb40772281754545a6ad124
Please note that we are no longer able to provide a coverage score for Virus Total.

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_detect_tls_callbacks
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:upx_largefile
Author:k3nr9

File information


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

  
Delivery method
Other

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA

Comments