MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524
SHA3-384 hash: 5c8aa2525aaa8508f8a0c96a21e56c1a2fb42624f1c26a070729a9e014d1e78486e2f6e0e6cf69d959791efbd6568cca
SHA1 hash: f63cf9954016a4fc27e574f6d2465d21c188f6a5
MD5 hash: 76c2c66ad231271e1743d1fb42750d3e
humanhash: nitrogen-kitten-oklahoma-north
File name:monolithhotfix.exe.vir
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2022-06-18 08:31:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:1TEgdc0YSX7IxUpGREW1nLdmATEmPu5Etq4+yw4JUcEhOb8F9y0dKGHAgcTR3W:1TEgdfYrxUwLdzv4lywBxpHHrcdW
TLSH T1A2B45B8123FC851BE1AE57BDE8B14421ABF4F407A6A7EB4F4940A1F92C967429D407F3
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 KdssSupport
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
monolithhotfix.exe
Verdict:
Malicious activity
Analysis date:
2022-06-18 08:18:18 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/1a61f80a-76e2-4290-9a24-1aeb0b84ddca

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/281119/
Detection(s):
Win.Malware.Bulz-9823462-0
Create hunting rule

Win.Malware.Generic-9883082-0
Create hunting rule

Win.Malware.Generic-9883083-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger quasarrat rat vermin
Link:
https://www.filescan.io/uploads/62ad8d9bb42c4b10d8467e5d/reports/6e0bf1e3-3965-4529-b88b-960097b241dd/overview
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/5f707c95-cb40-4a8c-9683-9ccb1aaea590
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1015576
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-06-18 04:04:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ks2mfffkblzxqqqcj5l3ugfpeyxyjbm76noblkfglflut4r4susa._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:runtime broker spyware trojan
Link:
https://tria.ge/reports/220618-ke97ksffek/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
7.tcp.eu.ngrok.io:19456
Unpacked files
SH256 hash:
54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524
MD5 hash:
76c2c66ad231271e1743d1fb42750d3e
SHA1 hash:
f63cf9954016a4fc27e574f6d2465d21c188f6a5
Link:
https://www.unpac.me/results/7402470e-d822-4bee-aab3-cad2db550a93/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/54b4c294aa0af37842024f57ba18af262f84859ff35c15a8a6595749f23c9524

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_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_Lokibot_Stealer
Create hunting rule
Description:Detects Lokibot Stealer Variants
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/281119/

Comments