MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e. 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
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SHA256 hash: c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e
SHA3-384 hash: 2ded79e3d0f02f7bd8f2bd32578003daf4c7d6da803e922f0714954dc9ea7c9926c85117ca38e8b583a9a5ea4ce8a813
SHA1 hash: 9ad65f7f6252c2df5c97b44000d12c988ec7d4a1
MD5 hash: a89dce2412407f0bd1f4b9e575545aeb
humanhash: iowa-white-bravo-purple
File name:rScan_0984829339_PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:220'160 bytes
First seen:2024-10-15 19:30:06 UTC
Last seen:2024-10-17 07:37:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:vt18yO+SfeIWIWUE5fGEgHmUfjPGBTOqAnulg7eQ5RxDkktr/8G1doRb8JJUAJU2:V1z9IWbnhP8QQk41E
TLSH T1E7244A20B79CE567F26AABBAD4E39D86D3F08064E71EE7CE5C0064F925023A0F815357
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
422
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
은행 영수증.pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-10-15 05:43:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/484784e5-fb95-4a11-a466-3e91be2c0af6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.9223.31613.UNOFFICIAL
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Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670ec2f81d4ef219fa630e0d
Tags:
Autorun Exploit Micro Msil
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/670ec2f8273403a3ef0fa968/reports/eb907fdf-14d1-48d9-9546-42ef5eb7006c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e
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.
Malware family:
ScrPacker
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/852dda17-c9b1-4600-bbb1-516cda3f4dd8
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1534432
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 the Telegram API (likely for C&C communication)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1534432 Sample: rScan_0984829339_PDF.exe Startdate: 15/10/2024 Architecture: WINDOWS Score: 100 30 api.telegram.org 2->30 32 rubberpartsmanufacturers.com 2->32 48 Suricata IDS alerts for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 56 11 other signatures 2->56 8 rScan_0984829339_PDF.exe 15 5 2->8         started        13 wscript.exe 1 2->13         started        signatures3 54 Uses the Telegram API (likely for C&C communication) 30->54 process4 dnsIp5 34 rubberpartsmanufacturers.com 103.191.208.122, 443, 49711, 49804 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 8->34 24 C:\Users\user\AppData\Roamingbehaviorgraphuid.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Roaming\...behaviorgraphuid.vbs, ASCII 8->26 dropped 28 C:\Users\user\...behaviorgraphuid.exe:Zone.Identifier, ASCII 8->28 dropped 66 Drops VBS files to the startup folder 8->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->68 15 InstallUtil.exe 14 2 8->15         started        70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->70 19 Guid.exe 14 2 13->19         started        file6 signatures7 process8 dnsIp9 36 api.telegram.org 149.154.167.220, 443, 49739, 49831 TELEGRAMRU United Kingdom 15->36 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->38 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->40 42 Tries to steal Mail credentials (via file / registry access) 15->42 44 Multi AV Scanner detection for dropped file 19->44 46 Machine Learning detection for dropped file 19->46 21 InstallUtil.exe 2 19->21         started        signatures10 process11 signatures12 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->58 60 Tries to steal Mail credentials (via file / registry access) 21->60 62 Tries to harvest and steal ftp login credentials 21->62 64 Tries to harvest and steal browser information (history, passwords, etc) 21->64
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e/
Threat name:
ByteCode-MSIL.Trojan.Generic
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Status:
Suspicious
First seen:
2024-10-15 06:57:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdckb5n4aj4psojkinlkyequldypjuieed3fwruoovllbdee75pa._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Similar samples:
error
AgentTesla
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/241015-x8cvdsxarm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
AgentTesla
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
https://api.telegram.org/bot7162202130:AAHTxdkbyFCUMWCzyf9jutDYYrL6rqEAva4/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a74ff017-5343-42fe-b3c0-7a314f92d301
Unpacked files
SH256 hash:
c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e
MD5 hash:
a89dce2412407f0bd1f4b9e575545aeb
SHA1 hash:
9ad65f7f6252c2df5c97b44000d12c988ec7d4a1
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/de46337b-f1cf-473f-bf27-3d1d540be7b4/
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/c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e

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.

Malspam

AgentTesla

Executable exe c8c4a0f5bc0278f9392a4356ac121458f0f4d10420f65b468e7556b08c84ff5e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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