MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39
SHA3-384 hash: be60e8adfea61d8d717cd1b7587e1efe5f5302b3f2478b8c05884f0fcd13ea71d32339ef84381a7e1822dc5eeb8b0c25
SHA1 hash: 05c2b455aa833d30e72f344da84fb1f0cc180bcb
MD5 hash: 01b694e73ae67576d5960eef85a9ad2f
humanhash: hotel-north-single-maine
File name:01b694e73ae67576d5960eef85a9ad2f.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2023-03-29 19:45:24 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 49152:3vCG42pda6D+/PjlLOlg6yQipVrCj1JnooGdo8THHB72eh2NT:3vl42pda6D+/PjlLOlZyQipVrCk
TLSH T1A1E54A1437F85E23E1BBE273D5B0041267F1EC2AB3A3FB5B6181677A1C53B505841AAB
TrID 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.5% (.SCR) Windows screen saver (13097/50/3)
7.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
193.161.193.99:48452

Intelligence

File Origin
# of uploads :
1
# of downloads :
360
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
01b694e73ae67576d5960eef85a9ad2f.exe
Verdict:
Malicious activity
Analysis date:
2023-03-29 19:47:21 UTC
Tags:
quasar asyncrat
Link:
https://app.any.run/tasks/59e40bd5-9b9c-4f05-82b1-d52e68403090

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/378606/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
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
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm keylogger quasarrat rat stealer
Link:
https://www.filescan.io/uploads/6424957c8e162174987d6bae/reports/235664ad-af29-43af-afba-097e139e7e10/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39
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/6c6734c8-89be-402a-b7bf-76bd4a7f001a
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1204659
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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/4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-03-25 23:32:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jir5wxhgmfxfqy4xucwclxsrzqkfb5bboaexcx4kzae3edjxpm4q._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:alex spyware trojan
Link:
https://tria.ge/reports/230329-ygys8ahf72/
Behaviour
Uses Task Scheduler COM API
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
AlexDaProphet-48452.portmap.host:48452
AlexDaProphet-48452.portmap.host:5555
Unpacked files
SH256 hash:
4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39
MD5 hash:
01b694e73ae67576d5960eef85a9ad2f
SHA1 hash:
05c2b455aa833d30e72f344da84fb1f0cc180bcb
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/70cf783d-cc24-4fe9-ae00-e514822f9321/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a23db5ce661/report/overview.html
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/4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39

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_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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

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/378606/

Comments