MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
SHA3-384 hash: c9c59b0a1af3c40cf2f0b113d19e7e2d8b267c91903f1ed43dc75bb2f1d7e8fc6b65f1589176421b5182dabd4babbe04
SHA1 hash: 8f52cbf4905d0e1fa88d603cb02785107f6c06b8
MD5 hash: 8a35b10f431e16c1a30d5c837df343e5
humanhash: virginia-bulldog-ten-nine
File name:1.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:832'664 bytes
First seen:2024-05-20 08:10:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4dc3fe6326749d7464f4c796c8662bb3 (4 x AgentTesla, 2 x Formbook, 1 x XWorm)
ssdeep 12288:XHboTxwbed/QIA8Em9D+7m5BXIz1xYCp6IEJ9eHyg6EtF9/wDfbGRS:38TFQBe9QzgC6PcBdT/wzkS
TLSH T17D059D87E1B530A5D5F780788902E12BF671787BDB14A7AF35E009962B13AE16F3DB40
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Reporter petrovic
Tags:exe PureLogStealer signed

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-05-17T13:58:33Z
Valid to:2025-05-17T13:58:33Z
Serial number: 1f470346d19d3dd9ae3bec4f19edc340
Thumbprint Algorithm:SHA256
Thumbprint: b259b9746cb3cc4d7a379940cfe1cb0f08a01e8294c3d3d666b12ec60939fc23
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
352
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
xmrig
Create hunting rule
ID:
1
File name:
winbox.exe
Verdict:
Malicious activity
Analysis date:
2024-05-19 13:31:40 UTC
Tags:
opendir loader evasion privateloader miner adware neoreklami xmrig
Link:
https://app.any.run/tasks/aa740191-33b6-4bbb-bf58-ae302fa9b48e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
Encryption Execution Network Static Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
Creating a window
Connection attempt to an infection source
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Link:
https://www.filescan.io/uploads/664b059c30ff7b27da610416/reports/e371424e-ceae-45bc-a3a4-7bc889f03873/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
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/b1fecf9c-87b8-4718-bf36-ee7bfb7fb750
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1444180
Signature
Adds a directory exclusion to Windows Defender
Adds extensions / path to Windows Defender exclusion list (Registry)
Antivirus detection for URL or domain
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to infect the boot sector
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Disable Windows Defender real time protection (registry)
Disables Windows Defender (deletes autostart)
Drops PE files to the document folder of the user
Drops script or batch files to the startup folder
Encrypted powershell cmdline option found
Exclude list of file types from scheduled, custom, and real-time scanning
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Modifies Group Policy settings
Modifies the hosts file
Modifies Windows Defender protection settings
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Suspicious execution chain found
Suspicious powershell command line found
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Uses cmd line tools excessively to alter registry or file data
Uses schtasks.exe or at.exe to add and modify task schedules
Very long command line found
Writes many files with high entropy
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1444180 Sample: 1.exe Startdate: 20/05/2024 Architecture: WINDOWS Score: 100 168 Multi AV Scanner detection for domain / URL 2->168 170 Antivirus detection for URL or domain 2->170 172 Multi AV Scanner detection for dropped file 2->172 174 11 other signatures 2->174 13 1.exe 2 2->13         started        17 svchost.exe 32 2->17         started        19 cmd.exe 2->19         started        21 3 other processes 2->21 process3 file4 140 C:\Users\user\AppData\...\file-19533.putik, data 13->140 dropped 228 Very long command line found 13->228 230 Encrypted powershell cmdline option found 13->230 232 Writes many files with high entropy 13->232 23 powershell.exe 15 13->23         started        26 conhost.exe 13->26         started        234 Tries to delay execution (extensive OutputDebugStringW loop) 17->234 28 WerFault.exe 17->28         started        30 conhost.exe 19->30         started        signatures5 process6 signatures7 184 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 23->184 186 Writes to foreign memory regions 23->186 188 Suspicious execution chain found 23->188 192 2 other signatures 23->192 32 RegAsm.exe 15 303 23->32         started        37 WerFault.exe 23->37         started        39 conhost.exe 23->39         started        41 2 other processes 23->41 190 Adds a directory exclusion to Windows Defender 28->190 process8 dnsIp9 142 189.245.43.194 UninetSAdeCVMX Mexico 32->142 144 185.18.245.58 UNINETAZ Azerbaijan 32->144 148 19 other IPs or domains 32->148 114 C:\Users\...\zUFS5DvCpnHUzkXXZGPXoHhW.exe, MS-DOS 32->114 dropped 116 C:\Users\...\zNu4jCUcmVL2yKNTrT2pCVbC.exe, PE32 32->116 dropped 118 C:\Users\...\ydleL2VsEzxtwTEch9MP1xAR.exe, PE32 32->118 dropped 120 198 other malicious files 32->120 dropped 176 Drops script or batch files to the startup folder 32->176 178 Creates HTML files with .exe extension (expired dropper behavior) 32->178 180 Modifies Windows Defender protection settings 32->180 182 Writes many files with high entropy 32->182 43 UxE6AGny5Pkq9AViTZCz2Ip7.exe 32->43         started        48 R1BF5lbkGjSGOFgzusROZRI6.exe 32->48         started        50 RmU9fUGT2ybLEoUKeRBOoNgq.exe 32->50         started        54 10 other processes 32->54 146 104.208.16.94 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 37->146 52 powershell.exe 37->52         started        file10 signatures11 process12 dnsIp13 150 176.111.174.109 WILWAWPL Russian Federation 43->150 152 87.240.132.67 VKONTAKTE-SPB-AShttpvkcomRU Russian Federation 43->152 158 19 other IPs or domains 43->158 122 C:\Users\...\xmWCsN50RYaIGGK6hkWYxmEl.exe, PE32 43->122 dropped 124 C:\Users\...\sWqRCULuMNjKwRyllPjB5MWO.exe, PE32 43->124 dropped 126 C:\Users\...\sNcsRIMFwTb45yjTVHD2DXm9.exe, PE32+ 43->126 dropped 134 25 other malicious files 43->134 dropped 202 Query firmware table information (likely to detect VMs) 43->202 204 Drops PE files to the document folder of the user 43->204 206 Creates HTML files with .exe extension (expired dropper behavior) 43->206 226 10 other signatures 43->226 136 3 other malicious files 48->136 dropped 56 Install.exe 48->56         started        208 Detected unpacking (changes PE section rights) 50->208 210 Tries to detect sandboxes and other dynamic analysis tools (window names) 50->210 212 Tries to evade debugger and weak emulator (self modifying code) 50->212 214 Found direct / indirect Syscall (likely to bypass EDR) 50->214 216 Loading BitLocker PowerShell Module 52->216 59 conhost.exe 52->59         started        154 104.192.108.17 QIHOOBeijingQihuTechnologyCompanyLimitedCN United States 54->154 156 104.192.108.21 QIHOOBeijingQihuTechnologyCompanyLimitedCN United States 54->156 160 4 other IPs or domains 54->160 128 C:\Users\user\Pictures\360TS_Setup.exe.P2P, PE32 54->128 dropped 130 C:\Users\user\AppData\Local\...\360P2SP.dll, PE32 54->130 dropped 132 C:\Users\user\AppData\Local\...\changepk.exe, PE32+ 54->132 dropped 138 13 other malicious files 54->138 dropped 218 Contains functionality to infect the boot sector 54->218 220 Modifies the hosts file 54->220 222 Adds a directory exclusion to Windows Defender 54->222 224 Contains functionality to compare user and computer (likely to detect sandboxes) 54->224 61 Install.exe 54->61         started        63 Install.exe 54->63         started        file14 signatures15 process16 signatures17 194 Uses schtasks.exe or at.exe to add and modify task schedules 56->194 196 Modifies Windows Defender protection settings 56->196 65 cmd.exe 56->65         started        68 forfiles.exe 56->68         started        70 schtasks.exe 56->70         started        72 cmd.exe 61->72         started        74 forfiles.exe 61->74         started        process18 signatures19 162 Suspicious powershell command line found 65->162 164 Uses cmd line tools excessively to alter registry or file data 65->164 166 Modifies Windows Defender protection settings 65->166 76 forfiles.exe 65->76         started        79 forfiles.exe 65->79         started        81 conhost.exe 65->81         started        83 cmd.exe 68->83         started        85 conhost.exe 68->85         started        87 forfiles.exe 72->87         started        91 2 other processes 72->91 89 cmd.exe 74->89         started        93 2 other processes 74->93 process20 signatures21 198 Modifies Windows Defender protection settings 76->198 95 cmd.exe 76->95         started        98 cmd.exe 79->98         started        200 Suspicious powershell command line found 83->200 100 powershell.exe 83->100         started        102 cmd.exe 87->102         started        104 powershell.exe 89->104         started        process22 signatures23 236 Uses cmd line tools excessively to alter registry or file data 95->236 106 reg.exe 95->106         started        108 reg.exe 98->108         started        110 WMIC.exe 100->110         started        112 reg.exe 102->112         started        process24
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e/
Threat name:
Win64.Trojan.Operaloader
Create hunting rule
Status:
Malicious
First seen:
2024-05-20 08:11:05 UTC
File Type:
PE+ (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gx52jluwn7qsyg44lx64yw3jykmruqjkb4pfo5arryls3pkavvxa._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:privateloader family:xmrig bootkit discovery evasion execution loader miner persistence ransomware spyware stealer themida trojan upx
Link:
https://tria.ge/reports/240520-j29nwsbb34/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks for any installed AV software in registry
Checks installed software on the system
Checks whether UAC is enabled
Drops Chrome extension
Drops desktop.ini file(s)
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Writes to the Master Boot Record (MBR)
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
Reads user/profile data of web browsers
Registers COM server for autorun
Themida packer
UPX packed file
Unexpected DNS network traffic destination
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Creates new service(s)
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Installed Components in the registry
Sets service image path in registry
Stops running service(s)
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Modifies boot configuration data using bcdedit
XMRig Miner payload
Modifies firewall policy service
PrivateLoader
xmrig
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ee63f9b0-1436-41fa-9630-c1d1876d800d
Unpacked files
SH256 hash:
35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e
MD5 hash:
8a35b10f431e16c1a30d5c837df343e5
SHA1 hash:
8f52cbf4905d0e1fa88d603cb02785107f6c06b8
Link:
https://www.unpac.me/results/b3e4767d-5dc3-4632-95ac-32800857ad7f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/35fba4ae966f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
StrelaStealer
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/35fba4ae966fe12c1b9c5dfdcc5b69c2991a412a0f1e5774118e172dbd40ad6e

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::GetTempPathA

Comments