MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35a8d03f86ae6f92424d6424fe0805d338eccedff177b400182102685299022c. 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



CoinMiner


Vendor detections: 16


Intelligence 16 IOCs YARA 22 File information Comments

SHA256 hash: 35a8d03f86ae6f92424d6424fe0805d338eccedff177b400182102685299022c
SHA3-384 hash: 024926995e6349a319c42c5e7340427b8a05b5c51df223a60353513cfbf8fd936dad77d9b84c86f666e665fbd5bf8a94
SHA1 hash: 33e536c5b4bdb6f6042f93445dffd8a3ad488e8b
MD5 hash: 990a3f3b1273510f210fb9b541da219f
humanhash: oregon-kansas-winter-queen
File name:gem2.exe
Download: download sample
Signature CoinMiner
File size:2'876'416 bytes
First seen:2025-01-10 09:14:37 UTC
Last seen:2025-01-10 10:01:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash de41d4e0545d977de6ca665131bb479a (85 x CoinMiner)
ssdeep 49152:lYul8CapE2jLY0vFhbkQbIptv1xZ4ayOIYDIGC3FYKjPgz+WWrS2sWioLyVQGMNx:lYLCGYYbkQbytvVeOIerC1zPgSWW/pio
Threatray 255 similar samples on MalwareBazaar
TLSH T129D523E536CE4726C8143C71F4A6898918EF7A8AD3BBB1B7644483736A747B34DB7048
TrID 49.9% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
31.8% (.EXE) Win64 Executable (generic) (10522/11/4)
6.1% (.EXE) OS/2 Executable (generic) (2029/13)
6.0% (.EXE) Generic Win/DOS Executable (2002/3)
6.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter Joker
Tags:CoinMiner exe Jalapeno malware trojan

Intelligence


File Origin
# of uploads :
2
# of downloads :
475
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
gem2.exe
Verdict:
Malicious activity
Analysis date:
2025-01-10 09:15:20 UTC
Tags:
miner

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
xmrig mint
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for the window
Running batch commands
Deleting a system file
Launching a process
Creating a service
Creating a file
Launching a service
Creating a process from a recently created file
Creating a file in the Windows subdirectories
Searching for synchronization primitives
Creating a file in the system32 subdirectories
Setting browser functions hooks
Enabling autorun for a service
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
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.
Result
Threat name:
Detection:
malicious
Classification:
spyw.evad.mine
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Detected Stratum mining protocol
Found strings related to Crypto-Mining
Hooks files or directories query functions (used to hide files and directories)
Hooks processes query functions (used to hide processes)
Hooks registry keys query functions (used to hide registry keys)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs new ROOT certificates
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies power options to not sleep / hibernate
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sample is not signed and drops a device driver
Sigma detected: Disable power options
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Stop EventLog
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1587388 Sample: gem2.exe Startdate: 10/01/2025 Architecture: WINDOWS Score: 100 57 pool.supportxmr.com 2->57 59 pool-fr.supportxmr.com 2->59 61 3 other IPs or domains 2->61 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 Yara detected Xmrig cryptocurrency miner 2->71 73 10 other signatures 2->73 8 Lightshot.exe 1 2->8         started        12 gem2.exe 1 2 2->12         started        signatures3 process4 file5 51 C:\Windows\Temp\yycjbdwxjaoe.sys, PE32+ 8->51 dropped 75 Multi AV Scanner detection for dropped file 8->75 77 Modifies the context of a thread in another process (thread injection) 8->77 79 Adds a directory exclusion to Windows Defender 8->79 81 Sample is not signed and drops a device driver 8->81 14 dialer.exe 8->14         started        17 dialer.exe 8->17         started        20 powershell.exe 8->20         started        28 11 other processes 8->28 53 C:\ProgramData\Screenshots\Lightshot.exe, PE32+ 12->53 dropped 83 Uses powercfg.exe to modify the power settings 12->83 85 Modifies power options to not sleep / hibernate 12->85 22 dialer.exe 1 12->22         started        24 powershell.exe 23 12->24         started        26 cmd.exe 1 12->26         started        30 13 other processes 12->30 signatures6 process7 dnsIp8 87 Injects code into the Windows Explorer (explorer.exe) 14->87 89 Creates a thread in another existing process (thread injection) 14->89 91 Injects a PE file into a foreign processes 14->91 41 4 other processes 14->41 55 141.94.96.144, 49704, 80 DFNVereinzurFoerderungeinesDeutschenForschungsnetzese Germany 17->55 93 Query firmware table information (likely to detect VMs) 17->93 95 Found strings related to Crypto-Mining 17->95 97 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 17->97 32 conhost.exe 20->32         started        99 Contains functionality to inject code into remote processes 22->99 101 Writes to foreign memory regions 22->101 103 Allocates memory in foreign processes 22->103 105 Contains functionality to compare user and computer (likely to detect sandboxes) 22->105 34 lsass.exe 22->34 injected 37 winlogon.exe 22->37 injected 43 2 other processes 22->43 107 Loading BitLocker PowerShell Module 24->107 39 conhost.exe 24->39         started        45 2 other processes 26->45 47 11 other processes 28->47 49 13 other processes 30->49 signatures9 process10 signatures11 63 Installs new ROOT certificates 34->63 65 Writes to foreign memory regions 34->65
Threat name:
Win64.Trojan.MintZard
Status:
Malicious
First seen:
2025-01-10 09:15:05 UTC
File Type:
PE+ (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion evasion execution persistence
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Power Settings
Checks BIOS information in registry
Executes dropped EXE
Indicator Removal: Clear Windows Event Logs
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Creates new service(s)
Sets service image path in registry
Stops running service(s)
Modifies security service
Verdict:
Malicious
Tags:
Win.Packed.Zusy-10017005-0
YARA:
n/a
Unpacked files
SH256 hash:
35a8d03f86ae6f92424d6424fe0805d338eccedff177b400182102685299022c
MD5 hash:
990a3f3b1273510f210fb9b541da219f
SHA1 hash:
33e536c5b4bdb6f6042f93445dffd8a3ad488e8b
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MALWARE_Win_R77
Author:ditekSHen
Description:Detects r77 rootkit
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Generic_Threat_e8abb835
Author:Elastic Security
Rule name:Windows_Rootkit_R77_d0367e28
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit

File information


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

Web download

CoinMiner

Executable exe 35a8d03f86ae6f92424d6424fe0805d338eccedff177b400182102685299022c

(this sample)

  
Delivery method
Distributed via web download

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