MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97
SHA3-384 hash: 6160b8e9893363641ca549ab1230d667ae6d9d38d985de3d4070f77619e271389502da8a803e56d9935cb5c36a52c797
SHA1 hash: 5fddad35d0a9e2c71b24a7c46cab66a0ad864378
MD5 hash: 5130d6a3aff31805340e69da21b4c20d
humanhash: march-pasta-nitrogen-sink
File name:deffer.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'073'664 bytes
First seen:2025-02-17 09:54:20 UTC
Last seen:2025-02-17 10:31:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:TU9B54qPdYc+kXE3iuNtGpibpPyGyUacX5sZi9:TU5QkXCHNgpiiU/X5s
TLSH T1D235120D776DBD56CA6E6B3EC23990542338E093D303F36E2DD596B00F123A5BE095A6
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 004400cd44004000 (1 x AgentTesla)
Reporter chamindu_x
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
579
Origin country :
LK LK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://91.202.233.154/deffer.exe
Verdict:
Suspicious activity
Analysis date:
2025-02-17 09:26:03 UTC
Tags:
loader
Link:
https://app.any.run/tasks/d997fccc-d3b1-4917-ac03-2ad00491a093

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.17138.5834.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67b3084828ab76d43a5b724c
Tags:
agenttesla virus smtp remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/67b307821195447a80c4826c/reports/cee77a32-3caf-432b-8204-fb3b1f83d82c/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97
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/afe59c2e-1dc5-4ed3-a879-1dd1626ad65f
Result
Threat name:
PureCrypter, AsyncRAT, DarkTortilla, Mic
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1616913
Signature
.NET source code contains very large array initializations
Detected PureCrypter Trojan
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Tries to harvest and steal Bitcoin Wallet information
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected DarkTortilla Crypter
Yara detected MicroClip
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2025-02-17 08:47:59 UTC
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=saovfd2agx7fquksje4rvdl3gls24k6mewyrjmkgkxaowb6av6lq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware discovery persistence privilege_escalation stealer
Link:
https://tria.ge/reports/250217-lxtszsxqhp/
Behaviour
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks installed software on the system
Installs/modifies Browser Helper Object
Event Triggered Execution: Component Object Model Hijacking
Executes dropped EXE
Boot or Logon Autostart Execution: Active Setup
Downloads MZ/PE file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ba8cd409-bd48-4c77-87d7-90aec7427c10
Unpacked files
SH256 hash:
901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97
MD5 hash:
5130d6a3aff31805340e69da21b4c20d
SHA1 hash:
5fddad35d0a9e2c71b24a7c46cab66a0ad864378
Link:
https://www.unpac.me/results/a28385b8-935d-4931-af88-8f92f7ee8170/
SH256 hash:
7f27e9b0997f10e46896835b6193e07596a12eb1a9c74945d983694c3c331a30
MD5 hash:
39676db50a6e07ccfba275d804160de7
SHA1 hash:
686004827932ecb1139a8c8dae92fc911f6d6387
Link:
https://www.unpac.me/results/a28385b8-935d-4931-af88-8f92f7ee8170/
SH256 hash:
da4cb91d96214c7134a9e8799fdf241bd6b8103eecd4efb1b8c228ca3c8e7e91
MD5 hash:
9a06e083cd0531927dcd616b9b601ffa
SHA1 hash:
9584f7e1c8ab7be5900762abcaedf20cb92e4ae7
Link:
https://www.unpac.me/results/a28385b8-935d-4931-af88-8f92f7ee8170/
SH256 hash:
e8b36b699ec20f86c8bff059cdd4e8341af13e2c22132ba99e65ec9fc60deb6b
MD5 hash:
19dc5498d1afdc9b752df40458c0c4f0
SHA1 hash:
b01040f8828d382f8a8af2d05c0fb0102bb346ce
Link:
https://www.unpac.me/results/a28385b8-935d-4931-af88-8f92f7ee8170/
SH256 hash:
2cb5b8fbcd0994c8371837858c1f6dfe8e0de017e86437c7aee38d710209f10a
MD5 hash:
4f5880d558000b383fbb6efb21100997
SHA1 hash:
d2ceb9140d797b0f4db46a0a02c274e4fe89f349
Link:
https://www.unpac.me/results/a28385b8-935d-4931-af88-8f92f7ee8170/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/901d528f4035/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/901d528f4035fe58515249391a8d7b32e5ae2bcc25b114b14655c0eb07c0af97

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: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.

  
URLhaus
http://91.202.233.154/deffer.exe
  
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 (GUARD_CF)high

Comments