MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af
SHA3-384 hash: e0077d72da64f2838d1e2d1a4a4c240cfaab56f98317f4ecc1a95e1bdcef13d42270758f160e8f0c309e7f7fa214b64c
SHA1 hash: 10516eb3ed753b9f224f2170da50cde5f0e32d2c
MD5 hash: a6c317dcb5b9f43c26d53121a696eadb
humanhash: potato-earth-vermont-finch
File name:a6c317dcb5b9f43c26d53121a696eadb.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2023-05-27 13:10:32 UTC
Last seen:2023-05-27 13:26:47 UTC
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:bvyI22SsaNYfdPBldt698dBcjHsRu6nBxHOoGdG5MbOTHHB72eh2NT:bvf22SsaNYfdPBldt6+dBcjHf6q
Threatray 155 similar samples on MalwareBazaar
TLSH T1ECE56B0437F85E33E56BD2B3D5B05022A3F1E82AF363EB1B519167BE1C53B5488426A7
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:
147.135.165.27:4782

Intelligence

File Origin
# of uploads :
2
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
a6c317dcb5b9f43c26d53121a696eadb.exe
Verdict:
Malicious activity
Analysis date:
2023-05-27 13:11:14 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/d712d357-5e6c-427b-9bf3-d4ecbfaedee8

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/392501/
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
Creating a window
Сreating synchronization primitives
Creating a file in the system32 subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm infostealer keylogger lolbin quasar quasarrat rat stealer stealer
Link:
https://www.filescan.io/uploads/64720167d4390c516a7ed82e/reports/06fb1dd1-c4e0-45b5-aa80-8dde6371ac05/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af
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/61f98c50-19a1-4157-86c8-5ecc79db0886
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1243796
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
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
Sigma detected: Quasar
Snort IDS alert for network traffic
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/a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2023-05-20 17:38:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7t5adn47xwygrieeqilgywqim4pum66u4akttprqz4vpd3nkgxq._file
Verdict:
malicious
Similar samples:
3a62c18261a8f899c82eaed7aeb78c2d284788e55dd6c37cad57701a44df9a86
QuasarRAT
3cea3eed68e11a7775d7ee3d3b1f3718127a0926cf3e36dd316b7e56b15f2462
QuasarRAT
4a23db5ce6616e586397a0ac25de51cc1450f4217009715f8ac809b20d377b39
QuasarRAT
6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263
QuasarRAT
787eef5b064487f1e731171de212a2b2a7974a4e8776cd78493c02e1c9592a66
QuasarRAT
8a69059cb39f960058cba45dd63b1b33eba4011bff0cc3e374e4d844393f3acc
QuasarRAT
9f788e07cb6b288c2650fa817d823425dbdfec3476a4683718ba2f351e9fa8b3
QuasarRAT
d6d76fa5c46ce88e8def28ab03889c00078284de39865f0b00b6b5dce603ce16
QuasarRAT
e57f004cdd5d2da92e0429a1fdba612f17852781f389dc855c217341e28dc35b
QuasarRAT
+ 145 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/230527-qex5xacc8y/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Drops file in System32 directory
Executes dropped EXE
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
147.135.165.27:4782
Unpacked files
SH256 hash:
a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af
MD5 hash:
a6c317dcb5b9f43c26d53121a696eadb
SHA1 hash:
10516eb3ed753b9f224f2170da50cde5f0e32d2c
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/2502f09c-b665-4f43-9e3f-78a5099be03c/
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/a7e7d00dbcfded8345042410b362d04338fa33dea700a9cdf18679578f6d51af

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
Description:Detects QuasarRAT malware
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/392501/

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