MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425. 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


PureLogsStealer


Vendor detections: 16


Intelligence 16 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425
SHA3-384 hash: a96bf837d91068e1bb57564a5a5dbc5cc753534a195d5cbe123481aafa7657b5617424dc08348ce29410f433ead1e208
SHA1 hash: e3b026118d0b5e7675184ac910c6b98c6d448a4f
MD5 hash: d2ca2afd7678f1fbfabb3cbe3b9ac6f8
humanhash: video-beryllium-vegan-saturn
File name:ELtUoxWwke.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:379'432 bytes
First seen:2024-08-11 23:14:07 UTC
Last seen:2024-08-12 13:40:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:8XUj9ZYkUc4jts4nizqgrRJ/6hGOrxmvHtPawrrctF83XZEibv4OjCw2EO:ddUcIO4izqeIrxmkwctIFfjl2EO
TLSH T17684010776C483A2C99440F9D1EB951503E2A88737B3C5863B8582F61E727A5DE8DFCE
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter aachum
Tags:exe PureLogStealer

Intelligence

File Origin
# of uploads :
3
# of downloads :
380
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-10 20:58:10 UTC
Tags:
stealer redline evasion lefthook metastealer opendir lumma loader rat asyncrat remote netreactor purehvnc
Link:
https://app.any.run/tasks/6cd8a9b4-06f0-4a21-a052-484e11a6c411

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10034516-0
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66b945f8aa5b40be0aa0070b
Tags:
Encryption Static Gensteal
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor overlay packed packed
Link:
https://www.filescan.io/uploads/66b945f7e565ee98cf3ece6d/reports/cf967e9d-a737-492b-b79d-28f94ff65928/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425
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.
Gathering data
Result
Threat name:
PureCrypter, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1491366
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Detected PureCrypter Trojan
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for 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)
Tries to harvest and steal Bitcoin Wallet information
Writes to foreign memory regions
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1491366 Sample: ELtUoxWwke.exe Startdate: 12/08/2024 Architecture: WINDOWS Score: 100 20 Multi AV Scanner detection for submitted file 2->20 22 Yara detected PureLog Stealer 2->22 24 .NET source code contains potential unpacker 2->24 26 4 other signatures 2->26 6 ELtUoxWwke.exe 1 2->6         started        process3 file4 16 C:\Users\user\AppData\...LtUoxWwke.exe.log, ASCII 6->16 dropped 28 Found many strings related to Crypto-Wallets (likely being stolen) 6->28 30 Contains functionality to inject code into remote processes 6->30 32 Writes to foreign memory regions 6->32 34 2 other signatures 6->34 10 RegAsm.exe 6->10         started        13 RegAsm.exe 2 6->13         started        signatures5 process6 dnsIp7 36 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 10->36 38 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 10->38 40 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 10->40 42 Queries memory information (via WMI often done to detect virtual machines) 10->42 18 15.235.137.198, 49714, 56001 HP-INTERNET-ASUS United States 13->18 44 Found many strings related to Crypto-Wallets (likely being stolen) 13->44 46 Tries to harvest and steal Bitcoin Wallet information 13->46 48 Detected PureCrypter Trojan 13->48 signatures8
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-08-11 00:01:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vbq37tqeupdtnwi6zod2qnxk5kqd4qn7b4u74uuu5gsg6ryqaqsq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/240811-28jp6ayama/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ee0bf0df-9978-4e60-9c4a-448dc1c514be
Unpacked files
SH256 hash:
43abc0aa24e30c857b710889d1a6188fd9d00900641c13d19a899dbfd076a2e9
MD5 hash:
7755c65921a65511b3f77fdbaa95c159
SHA1 hash:
1ee49d8bbc23b7b6f927c1c60faaa386af4a3e7a
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/44487227-8feb-4128-b6db-548b0849dd39/
SH256 hash:
a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425
MD5 hash:
d2ca2afd7678f1fbfabb3cbe3b9ac6f8
SHA1 hash:
e3b026118d0b5e7675184ac910c6b98c6d448a4f
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/44487227-8feb-4128-b6db-548b0849dd39/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a861bfce04a3/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/a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
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.

Web download

LummaStealer

Executable exe 3fb9c7fb6ce102e9e8f7eef037e9b0b120f69b5f4d3dbcf4ca84cba17f655ec8

PureLogsStealer

Executable exe a861bfce04a3c736d91ecb87a836eaeaa03e41bf0f29fe5294e9a46f47100425

(this sample)

  
Link
https://tria.ge/240811-23gcvaxfrh
  
Dropped by
SHA256 3fb9c7fb6ce102e9e8f7eef037e9b0b120f69b5f4d3dbcf4ca84cba17f655ec8
  
Dropped by
MD5 265b45d7a9d3f51b3b8512f3088c2e01

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