MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23. 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: 15


Intelligence 15 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23
SHA3-384 hash: 5adfd208b419b3f44eac0da10dbd032329c512f5a13607925a8626783215ff6dcb9432def8d03978394f36cd4934911c
SHA1 hash: 0a0c2cc62132571732b073785907a8dc0cd88b8a
MD5 hash: 9d6e90a6788c6235d297000818821294
humanhash: jupiter-mango-indigo-london
File name:Action.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:1'501'352 bytes
First seen:2024-08-03 18:04:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:F6xWMXDfFFj1H5dyeABiiBGHPRYAJoq39froTkq30yedomxsflXtVF+dpDwm4/:F8TXDfRH5d+IuqtToT1sXxKl9T+dpf
TLSH T10165F14E23152D5ADBF6CA35E863A2081F21C9BAD0C3DB0793C560A6117B3EF2F92751
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter jonozzz
Tags:exe PureLogStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
327
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Action.exe
Verdict:
Malicious activity
Analysis date:
2024-08-03 18:07:16 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/118fc831-fcf4-47c8-83c6-94f30f0d6521

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ae7152b7a04efc7439c242
Tags:
Encryption Static Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Creating a file
Forced system process termination
Creating a process from a recently created file
Deleting a recently created file
Launching a process
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed ransomx
Link:
https://www.filescan.io/uploads/66ae715cdfa8b2fced515754/reports/85281e0c-e7f7-420b-b68c-099cd3a6dbc3/overview
Verdict:
Malicious
Labled as:
Marsilia.Generic
Link:
https://www.hybrid-analysis.com/sample/61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23
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/6dd4b7ec-9f67-408e-bcf5-f78e7abcf03c
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1487308
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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 disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1487308 Sample: Action.exe Startdate: 03/08/2024 Architecture: WINDOWS Score: 100 35 amm.mine.nu 2->35 39 Multi AV Scanner detection for domain / URL 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 11 other signatures 2->45 7 Action.exe 4 2->7         started        10 Action.exe 9 2->10         started        13 powershell.exe 2->13         started        15 2 other processes 2->15 signatures3 process4 file5 47 Antivirus detection for dropped file 7->47 49 Multi AV Scanner detection for dropped file 7->49 51 Machine Learning detection for dropped file 7->51 59 2 other signatures 7->59 17 InstallUtil.exe 4 7->17         started        27 C:\Users\user\AppData\Local\...\Action.exe, PE32 10->27 dropped 29 C:\Users\user\...\Action.exe:Zone.Identifier, ASCII 10->29 dropped 31 C:\Users\user\AppData\...\Action.exe.log, ASCII 10->31 dropped 53 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 10->53 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->55 57 Loading BitLocker PowerShell Module 13->57 21 conhost.exe 13->21         started        23 WmiPrvSE.exe 13->23         started        25 conhost.exe 15->25         started        signatures6 process7 dnsIp8 33 amm.mine.nu 89.39.106.35, 49731, 49732, 49733 WORLDSTREAMNL Netherlands 17->33 37 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 17->37 signatures9
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23/
Threat name:
ByteCode-MSIL.Trojan.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2024-02-08 10:22:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mgrxu4zoqzwgchlcsb4t5zm7kalmzji7qnrj26hjovbdetxsb4rq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/240803-wn55rs1arq/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cfafe353-f0b8-4dec-8bcb-8c097c5d9cbf
Unpacked files
SH256 hash:
984aa1f1907c380646ff751f274a486123e987d23f3850e0395b1b570b477cdb
MD5 hash:
7abdc52f5ff095b4538d76812e7aa44a
SHA1 hash:
aab55b7f67fd1b3f32a656f23011a6c9f1b8f74f
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
ed3b02d15f71311702ce84f5a5bf5263961745d3afb4d230b98b9be8fafa9c6f
MD5 hash:
35a73ea9d3c52fc0f4fc3a4454f23d80
SHA1 hash:
9f14682debd3d0a9fedb0e036ab0f5d729e09dac
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
fa634ed0332bc5b2643d20a4e02557d5f22639edec4a2f71c07920135130bf9b
MD5 hash:
4c0ab945f5b8c90c5de665ec5e5e426d
SHA1 hash:
928c74f1f5523260724d637df2af3f938cfef82f
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
e69524919046a9383e0b2bda2f5b2634ae8a5d36c8f398acb2f9168117ec6738
MD5 hash:
1d84626bb020666d9d8fcc8c46d44e13
SHA1 hash:
7636557b71259c9099a5346ce94b7f9dd7447d86
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
c986dbde26dc6c93a7bb0c02ecaa59d669257075d5b4ec46acf76c6a7c35f1c9
MD5 hash:
599d951af94c648484f20c62328fbb5e
SHA1 hash:
2a24abcbb48e8acc23520af279469dce25e13f0d
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
292195afa1e3e13747bdfd45ed913a02d0af2139213950b2c39f372efd60177c
MD5 hash:
30b062c0fd4011093f14db54c64554b2
SHA1 hash:
260c123a9e4dfa0d16e6dab94904628989967dc0
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
c160aec3093625568f54956bb8a35f55283dc3b058fea34d738cfd430c9b104e
MD5 hash:
cd50116da36a7022484cccb0950b74c9
SHA1 hash:
0f866f51194aa049a0db6bb052bc570b4ec4f5ad
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
SH256 hash:
61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23
MD5 hash:
9d6e90a6788c6235d297000818821294
SHA1 hash:
0a0c2cc62132571732b073785907a8dc0cd88b8a
Detections:
Typical_Malware_String_Transforms
Create hunting rule
SUSP_OBF_NET_Eazfuscator_String_Encryption_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/50d57c6f-3a00-4846-99e9-989d8e24f4cb/
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/61a37a732e866c611d6290793ee59f5016cca51f83629d78e97542324ef20f23

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

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