MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 636f2b1624573965b7fc093117d8927ebffdbc0d852c241aede59fe81fece84f. 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
QuasarRAT
Vendor detections: 15
| SHA256 hash: | 636f2b1624573965b7fc093117d8927ebffdbc0d852c241aede59fe81fece84f |
|---|---|
| SHA3-384 hash: | 1a527fbdb9085e11d0c2add477875326426cda66c5913931ede9880abc976461525ae66506265f64677d3902f41863ab |
| SHA1 hash: | c8f1fc586c61c93b9cb2d9ab3401ac548e3d10e7 |
| MD5 hash: | 41b5953e5d8016a817f4f793f7eb708c |
| humanhash: | california-friend-indigo-comet |
| File name: | 41b5953e5d8016a817f4f793f7eb708c |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 549'888 bytes |
| First seen: | 2024-03-26 17:21:13 UTC |
| Last seen: | 2024-03-26 17:47:40 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | faf16be05abc0234db15c73412fc4a90 (1 x QuasarRAT) |
| ssdeep | 6144:ScBUcxlczk0VXhumbeBJ1UW04tWu1lTWVwzYGK8zm4vK3JQErTw6f:xxlMVXhFbsVEujTWG8GTzqrTw6f |
| Threatray | 21 similar samples on MalwareBazaar |
| TLSH | T1AEC4AE11B3D40C72E9AB467885A35B06E7FABC121674DB4F53909E9A1F33342BB29353 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe QuasarRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
302
Origin country :
FRVendor Threat Intelligence
Malware family:
bitrat
ID:
1
File name:
q.7z
Verdict:
Malicious activity
Analysis date:
2024-03-26 19:43:47 UTC
Tags:
stealer bitrat evasion xworm
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug anti-vm carberp control crypto darkvnc evasive eventvwr explorer fingerprint keylogger keylogger lolbin miner shell32
Verdict:
Malicious
Labled as:
Trojan.ExplorerHijack.Generic
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:
DarkVNC
Verdict:
Malicious
Result
Threat name:
Ramnit
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains VNC / remote desktop functionality (version string found)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Ramnit VNC Module
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.ExplorerHijack
Status:
Malicious
First seen:
2024-03-11 20:19:18 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
31 of 37 (83.78%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 11 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
6/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Unpacked files
SH256 hash:
6594da78e285722e6f4c2d2889e89764eaf65ed3825ac0b12b23459e39c82eb9
MD5 hash:
d291715acc4a881f1339cb6b77de1a97
SHA1 hash:
8f7588999793b23b0960d64f3bafaed08be0f632
Detections:
HVNC
HiddenVNC
crime_win32_hvnc_banker_gen
SH256 hash:
73b5c8781c94014d2dfc093a4b464a797d0c6599b50e61ff70e3eced2148d21a
MD5 hash:
01d7ab5623c959b666c635f7cf083e22
SHA1 hash:
1ea0882e5a716306f3b6642e4ed24eaa0e0b7a19
Detections:
HVNC
HiddenVNC
crime_win32_hvnc_banker_gen
SH256 hash:
636f2b1624573965b7fc093117d8927ebffdbc0d852c241aede59fe81fece84f
MD5 hash:
41b5953e5d8016a817f4f793f7eb708c
SHA1 hash:
c8f1fc586c61c93b9cb2d9ab3401ac548e3d10e7
Detections:
HVNC
HiddenVNC
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Quasar
Score:
0.90
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: | crime_win32_hvnc_banker_gen |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects malware banker hidden VNC |
| Reference: | https://twitter.com/VK_Intel/status/1247058432223477760 |
| Rule name: | crime_win32_hvnc_zloader1_hvnc_generic |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Zloader hidden VNC |
| Reference: | https://twitter.com/malwrhunterteam/status/1240664014121828352 |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | HiddenVNC |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies HiddenVNC, which can start remote sessions. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| KERNEL_API | Manipulates Windows Kernel & Drivers | ntdll.dll::ZwClose |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::OpenProcess KERNEL32.dll::VirtualAllocEx KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::LoadLibraryA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileA |
Comments
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