MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d5a8ba6e3442a460c4edef925eced1f1ac00e4a200b82df436c5af9dccd1d7f3. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: d5a8ba6e3442a460c4edef925eced1f1ac00e4a200b82df436c5af9dccd1d7f3
SHA3-384 hash: cc5b08dc4f9db7f645edf41e6fdd50cd39802ae4c1125990dad09bab9a9af9691b377e7de9ff8fdfe13da589f42f7f23
SHA1 hash: b4ed10d6cc085f959dc11151e68b94f83a2aeb03
MD5 hash: f3d960b76d76be6d720e97ff408eac3f
humanhash: bulldog-two-minnesota-wisconsin
File name:99 (1).exe
Download: download sample
Signature AgentTesla
File size:872'000 bytes
First seen:2023-06-16 15:54:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:E/125wkFrqGXRE32i1nZMLVTxiOaBRWS55V1h8+Dd7jN6LJMKxa5uYw07bJFOja7:E/1sNqGXREmEuTxAbWjLxa0R0BF77
TLSH T1D905125377E91A21C4114A7A91EB903413F2F69BB2B7DA187BA8C0D40F337C15E4EB29
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
373
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
99 (1).exe
Verdict:
Malicious activity
Analysis date:
2023-06-16 15:55:46 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Creating a file in the %AppData% subdirectories
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
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 method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains functionality to register a low level keyboard hook
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
May check the online IP address of the machine
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
Win64.Spyware.Negasteal
Status:
Malicious
First seen:
2023-06-14 08:27:04 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
d5a8ba6e3442a460c4edef925eced1f1ac00e4a200b82df436c5af9dccd1d7f3
MD5 hash:
f3d960b76d76be6d720e97ff408eac3f
SHA1 hash:
b4ed10d6cc085f959dc11151e68b94f83a2aeb03
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:MSIL_SUSP_OBFUSC_XorStringsNet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
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 d5a8ba6e3442a460c4edef925eced1f1ac00e4a200b82df436c5af9dccd1d7f3

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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