MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd
SHA3-384 hash: ca89f43bd9cd94ac7e5915d1337e983dbf774fcf495151faa5861d12e24f7d3554f276b7fcfe864e8a725f564d6a532c
SHA1 hash: fd00676430e5f4c107faee2173a83872ed989837
MD5 hash: 06e150b7b00941b0998fbbd1061b4740
humanhash: stream-emma-undress-magazine
File name:Solicitud de presupuesto_____________________________.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:188'416 bytes
First seen:2024-06-15 02:15:28 UTC
Last seen:2024-06-18 13:37:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:eVC4kSBeMTFCpV2B6CQSoMjWc5FCqqT7wSdwyku:qC4kSNSV239jWcn
Threatray 1'549 similar samples on MalwareBazaar
TLSH T1AE04C47873A576CDF1B6CA35ABF0A5408675742E5A0AC24D0F87009908F6BC6FD53E2B
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
584
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd.exe
Verdict:
Malicious activity
Analysis date:
2024-06-15 02:18:53 UTC
Tags:
evasion smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/392b6f42-a78f-4385-85ef-c3417eafb143

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10017859-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666cfb3e0f85a8479dc7d573win7simulatehigh_evasion
Tags:
Agent
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a26ae008-4503-4d69-a413-278e2d4a5a03
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1457685
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus detection for URL or domain
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
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 domain / URL
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: Suspicious Double Extension File Execution
Snort IDS alert 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)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1457685 Sample: Solicitud de presupuesto___... Startdate: 15/06/2024 Architecture: WINDOWS Score: 100 34 nexoproducciones.cl 2->34 36 mail.afanew.cl 2->36 38 2 other IPs or domains 2->38 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 17 other signatures 2->56 7 Solicitud de presupuesto_____________________________.exe 15 5 2->7         started        12 Parrtqcyjjm.exe 14 3 2->12         started        14 Parrtqcyjjm.exe 2->14         started        signatures3 process4 dnsIp5 40 nexoproducciones.cl 104.21.10.178, 443, 49731, 49732 CLOUDFLARENETUS United States 7->40 24 C:\Users\user\AppData\...\Parrtqcyjjm.exe, PE32 7->24 dropped 26 C:\Users\...\Parrtqcyjjm.exe:Zone.Identifier, ASCII 7->26 dropped 28 Solicitud de presu...___________.exe.log, ASCII 7->28 dropped 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->58 60 Injects a PE file into a foreign processes 7->60 16 Solicitud de presupuesto_____________________________.exe 2 7->16         started        62 Multi AV Scanner detection for dropped file 12->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->64 66 Machine Learning detection for dropped file 12->66 20 Parrtqcyjjm.exe 2 12->20         started        22 Parrtqcyjjm.exe 14->22         started        file6 signatures7 process8 dnsIp9 30 ip-api.com 208.95.112.1, 49733, 49740, 49749 TUT-ASUS United States 16->30 32 afanew.cl 138.255.101.194, 49734, 49735, 49743 GRUPOZGHSPACL Chile 16->32 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->42 44 Tries to steal Mail credentials (via file / registry access) 22->44 46 Tries to harvest and steal ftp login credentials 22->46 48 Tries to harvest and steal browser information (history, passwords, etc) 22->48 signatures10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-06-13 11:44:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xblgdsbnksmhg27x6ynctekoxam3tjquodbpxpllogvf675es3oq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
2b0164c3ecb22bf4c514feef0f9471ab8a206663a3f3f38fc90a806090989f13
AgentTesla
475bf2a23c54406a6f6e4ac69ec99e6f2f7758e994b8b68d6bab71af54a358f2
AgentTesla
5978255ccd6c77df69ec56c2a9777e84e775d5996d935d90e6dd978b94b2e802
AgentTesla
7ecf055419ccb76a13fa53d8f5c5888ea369271ceaad4263f952da6d265c4c41
AgentTesla
8b8d68a47897fc7f8612ad932aec65de7e5523d2ed7619dadb686f1c1adeab80
AgentTesla
a91ca6aaad29b8fa67243ec564545d39653a99b127e0a20a3f9d0ea86283a8c6
AgentTesla
b17bb3acfdbdc750bc117c6e973019d71f6f182b64ed4e680746ac6604158c18
AgentTesla
+ 1'539 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240615-cp45bazclj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd
MD5 hash:
06e150b7b00941b0998fbbd1061b4740
SHA1 hash:
fd00676430e5f4c107faee2173a83872ed989837
Detections:
PureCrypter_Stage1
Create hunting rule
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/22a82607-babb-4242-8609-b8fc8d3077a3/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b85661c82d54/report/overview.html
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/b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:NET
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 b85661c82d5498736bf7f61a29914eb819b9a61470c2fbbd6b71aa5f7fa496dd

(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