MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037
SHA3-384 hash: 537f483e2f19f4f06eaeae4bad114bcb3ef5049916c95fba30615fefef685d23a1d915e1381aec2b9afa73dc5e068c74
SHA1 hash: 13d283931f3e43d9249a9006f5595cd759fcf8bc
MD5 hash: 7379781cc4f036054a368f924bf9fe68
humanhash: carolina-september-alaska-idaho
File name:me4.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:11'849'728 bytes
First seen:2023-06-28 21:21:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 196608:AhTb9B0BPrDz4pxgZZPy5RmStgxb/z6FDiSJXqeUh4mTo805udHXWGQoOcMbY:uTb9epDz4MZZ4RmxYDiScfhH080jNvfb
Threatray 5 similar samples on MalwareBazaar
TLSH T1B8C633684EE4F7EDE7629C7225F416178BDE71A38756CE9FCA8862300122BC4FB2551C
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter ULTRAFRAUD
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
337
Origin country :
LU LU
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
me4.exe
Verdict:
Malicious activity
Analysis date:
2023-06-28 21:26:40 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/b1e2f713-bf14-4ef0-b26f-a2b7ee65aff3

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/403643/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.11766.6199.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/649ca47c41f56e3443acf93f/reports/c625e71a-3878-4fdc-878c-e43fec98e97d/overview
Verdict:
Malicious
Labled as:
Variadic.A.348.Generic
Link:
https://www.hybrid-analysis.com/sample/a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037
Result
Verdict:
MALICIOUS
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3cb3580b-83ab-4584-9183-e906c502f9be
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1262953
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
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 Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037/
Threat name:
ByteCode-MSIL.Trojan.Variadic
Create hunting rule
Status:
Malicious
First seen:
2023-06-28 21:22:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcuf435k5vvd3rlipuc3sku7dapa3gdovynu4hltdqrbteesaa3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0c64b59284544f5b6999190a45541c39fb90eedb648a28825d02e06b939055ea
QuasarRAT
2658355af06f2bd5c9bb325e856723a362efcd9d9a8ee6a7c7f6ae5f85214e88
QuasarRAT
44de3cda2390b20b694a4121a3fcf1f940e2c5d50e5bcb8f13ce975c7fc962d9
QuasarRAT
480f481f15179f3009791744f5e16f0fd4868da9b1e68cbeeab729d12f3ddd3d
QuasarRAT
9c17ba1f31d3c5a41d0437818a7d6512775ba991a1d8a03e49f29fc982191190
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Link:
https://tria.ge/reports/230628-z7w8raca8t/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
Unknown2131-55332.portmap.io:55332
Unpacked files
SH256 hash:
e81398fe27661647e7b8e210d9c35696fa77e50e138c4d1cf2f8a31fdf132eed
MD5 hash:
11cbe386c19f7b05be4da4c6768fe0d3
SHA1 hash:
3cbabd947af7ca7865f9afd7dc4aa2bc0d32fc21
Link:
https://www.unpac.me/results/74f82061-b51a-4c8a-a7f3-7883a538eced/
SH256 hash:
a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037
MD5 hash:
7379781cc4f036054a368f924bf9fe68
SHA1 hash:
13d283931f3e43d9249a9006f5595cd759fcf8bc
Link:
https://www.unpac.me/results/74f82061-b51a-4c8a-a7f3-7883a538eced/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8a85e6faaed/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a8a85e6faaed6a3dc5687d05b92a9f181e0d986eae1b4e1d731c221990920037

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: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/403643/

Comments