MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 aac2a46338d7fc35f813863709d2622e53fa1a66facefd6133fa69f4d74e1b3b. 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
MassLogger
Vendor detections: 15
| SHA256 hash: | aac2a46338d7fc35f813863709d2622e53fa1a66facefd6133fa69f4d74e1b3b |
|---|---|
| SHA3-384 hash: | d6af95d842000ca70517a62dcee51626e32657a76c045042084313d3344074732af38658c1d83c7fb56a4a51bb3dbef4 |
| SHA1 hash: | 12a86907ae9bf3064a4e585bb88a54ca9c4517bd |
| MD5 hash: | a3780d1acea7799523939341e3e2b329 |
| humanhash: | michigan-sodium-louisiana-victor |
| File name: | xr7cLQMx2Alb.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 938'496 bytes |
| First seen: | 2022-09-16 06:34:31 UTC |
| Last seen: | 2022-09-16 06:34:59 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 24576:tNNzGTYAZN0gGkaoOsiwW0ZzELusJLK1lk6QLP:BGTYAZN0gGkaoOsiwW0Zzek1lk |
| Threatray | 327 similar samples on MalwareBazaar |
| TLSH | T184151914F7F855A5F06EBF30747099054A39BE43697DD74A2BA690890F6B3808CB1FA3 |
| TrID | 53.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 12.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 9.6% (.SCR) Windows screen saver (13101/52/3) 7.7% (.EXE) Win64 Executable (generic) (10523/12/4) 4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) |
| Reporter |  pmelson |
| Tags: | exe MassLogger VoidRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
339
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
xr7cLQMx2Alb.exe
Verdict:
Malicious activity
Analysis date:
2022-09-16 06:35:47 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a window
Sending a custom TCP request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Verdict:
Malicious
Threat level:
10/10
Confidence:
83%
Tags:
anti-vm cmd.exe cmstp.exe evasive explorer.exe fingerprint fingerprint greyware keylogger netsh.exe packed packed regasm.exe schtasks.exe stealer update.exe
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:
Quasar RAT
Verdict:
Malicious
Result
Threat name:
Clipboard Hijacker, Quasar
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to hide user accounts
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Yara detected AntiVM3
Yara detected Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Status:
Malicious
First seen:
2022-09-16 06:35:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
23 of 26 (88.46%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 317 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar botnet:rclient spyware trojan
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Checks computer location settings
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
blackid-4782.portmap.io:4782
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
aac2a46338d7fc35f813863709d2622e53fa1a66facefd6133fa69f4d74e1b3b
MD5 hash:
a3780d1acea7799523939341e3e2b329
SHA1 hash:
12a86907ae9bf3064a4e585bb88a54ca9c4517bd
Detections:
win_masslogger_w0
win_agent_tesla_g1
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
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: | INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse |
|---|---|
| Author: | ditekSHen |
| Description: | Detects file containing reversed ASEP Autorun registry keys |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing URLs to raw contents of a Github gist |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables embedding command execution via IExecuteCommand COM object |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | malware_Quasar_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect QuasarRAT in memory |
| Rule name: | MALWARE_Win_DLAgent09 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects known downloader agent |
| Rule name: | MALWARE_Win_DLAgent10 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects known downloader agent |
| Rule name: | MALWARE_Win_QuasarRAT |
|---|---|
| Author: | ditekSHen |
| Description: | QuasarRAT payload |
| Rule name: | masslogger_gcch |
|---|---|
| Author: | govcert_ch |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | pe_imphash |
|---|
| Rule name: | RansomwareTest4 |
|---|---|
| Author: | Daoyuan Wu |
| Description: | Test Ransomware YARA rules |
| Rule name: | RansomwareTest5 |
|---|---|
| Author: | Daoyuan Wu |
| Description: | Test Ransomware YARA rules |
| Rule name: | RansomwareTest6 |
|---|---|
| Author: | Daoyuan Wu |
| Description: | Test Ransomware YARA rules |
| Rule name: | RDPWrap |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies RDP Wrapper, sometimes used by attackers to maintain persistence. |
| Reference: | https://github.com/stascorp/rdpwrap |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Typical_Malware_String_Transforms |
|---|---|
| Author: | Florian Roth |
| Description: | Detects typical strings in a reversed or otherwise modified form |
| Reference: | Internal Research |
| Rule name: | Typical_Malware_String_Transforms_RID3473 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects typical strings in a reversed or otherwise modified form |
| Reference: | Internal Research |
| Rule name: | win_masslogger_w0 |
|---|---|
| Author: | govcert_ch |
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
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