MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a
SHA3-384 hash: 6adef54dacb93bef269c73ae2f911c59645940ecf0b9626de9800a479c6dd41cd226e6040df181c2a3c728dcf420fee7
SHA1 hash: 86e0269b21c64ffdc344ef0792fbaaaeb058d416
MD5 hash: 9773f17f57d5a69d3a69eec6def1a8a3
humanhash: blue-eighteen-bulldog-freddie
File name:rCHARTERREQUEST.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:149'112 bytes
First seen:2025-01-13 02:00:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 1536:xqvP1g8HjZfTiLX82GFmnGtGfIIcDjp31lDKqWIqHOVdh2iIC/m8:xqn1g8DNOM21nGtQdGNFlDKjId2pC/j
Threatray 2'953 similar samples on MalwareBazaar
TLSH T1F4E3EC1AE3D1E8CFCC80767674A366173321AD82699FCD07AE5672CC1D723D269DB089
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 b04e484c4c484eb0 (5 x AgentTesla, 3 x SnakeKeylogger, 1 x Formbook)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
655
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
rCHARTERREQUEST.exe
Verdict:
Malicious activity
Analysis date:
2025-01-13 02:00:39 UTC
Tags:
evasion stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/26446b7a-00f5-4613-baa1-406d6deb6a1a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.15542.5420.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678473dfaa9c8e7858de708f
Tags:
autorun virus zusy msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% directory
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Unauthorized injection to a recently created process
Stealing user critical data
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
finger lolbin net_reactor packed
Link:
https://www.filescan.io/uploads/678473e1bf34a5831fca63dd/reports/8e39090c-f7b3-4f54-a899-2d186b9449e2/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a
Result
Verdict:
UNKNOWN
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/63f717b0-4546-410b-ace4-8b7c64cc01a8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1589737
Signature
AI detected suspicious sample
Drops VBS files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1589737 Sample: rCHARTERREQUEST.exe Startdate: 13/01/2025 Architecture: WINDOWS Score: 100 34 oshi.at 2->34 36 api.ipify.org 2->36 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 8 other signatures 2->64 8 rCHARTERREQUEST.exe 15 7 2->8         started        13 wscript.exe 1 2->13         started        signatures3 process4 dnsIp5 38 oshi.at 194.15.112.248, 443, 49732, 49739 INTERNATIONAL-HOSTING-SOLUTIONS-ASEUDCrouteGB Ukraine 8->38 26 C:\Users\user\AppData\Roaming\ilsucsfth.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\Local\Temp\ckuv.exe, PE32 8->28 dropped 30 C:\Users\...\ilsucsfth.exe:Zone.Identifier, ASCII 8->30 dropped 32 C:\Users\user\AppData\...\ilsucsfth.vbs, ASCII 8->32 dropped 74 Drops VBS files to the startup folder 8->74 76 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->76 78 Writes to foreign memory regions 8->78 80 Injects a PE file into a foreign processes 8->80 15 InstallUtil.exe 14 2 8->15         started        19 ckuv.exe 14 2 8->19         started        82 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->82 21 ilsucsfth.exe 14 2 13->21         started        file6 signatures7 process8 dnsIp9 40 162.254.34.31, 49741, 49846, 587 VIVIDHOSTINGUS United States 15->40 42 api.ipify.org 104.26.12.205, 443, 49740, 49836 CLOUDFLARENETUS United States 15->42 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->46 48 Tries to steal Mail credentials (via file / registry access) 15->48 50 Multi AV Scanner detection for dropped file 21->50 52 Machine Learning detection for dropped file 21->52 54 Writes to foreign memory regions 21->54 56 Injects a PE file into a foreign processes 21->56 23 InstallUtil.exe 21->23         started        signatures10 process11 signatures12 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->66 68 Tries to steal Mail credentials (via file / registry access) 23->68 70 Tries to harvest and steal ftp login credentials 23->70 72 Tries to harvest and steal browser information (history, passwords, etc) 23->72
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-01-13 01:32:28 UTC
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g753rkvrd7xim5dnzjbpg7gd4h4k6zdnlfonfew4asld3hecxcna._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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2f9639175e04906207564913e4c0493b196f59dd4bc8f62deea0ececb4346891
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e97247599a336032a86ea5cb42b3b9c971567977e245b689d87c3f2ef3d200e4
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error
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f3ff932bd931ee266567cd0422a067fd38281164c534026b57d740658aa056c3
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fd19e12aebfd870dcc7fe04359e6e7a53daeeb281c2dfc21f7740f8e65edd264
AgentTesla
+ 2'943 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250113-ce2lfasqdq/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
AgentTesla
Agenttesla family
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5314e3a4-4e3f-483a-9bfc-3cfbea2f0b33
Unpacked files
SH256 hash:
37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a
MD5 hash:
9773f17f57d5a69d3a69eec6def1a8a3
SHA1 hash:
86e0269b21c64ffdc344ef0792fbaaaeb058d416
Link:
https://www.unpac.me/results/cd756327-a269-47d5-8e9d-12a788a88d5f/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37fbb8aab11f/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/37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

AgentTesla

Executable exe 37fbb8aab11fee86746dca42f37cc3e1f8af646d595cd292dc04963d9c82b89a

(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