MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263
SHA3-384 hash: dd1e4290d2c0e967d7623fb228b2e48ee4aa867d8aee7401ed17f0f581d2eaa2362f822701d5583716b56c5cd8693dd8
SHA1 hash: a58772db16fbd89e84fd9f156a6c0950f78bf129
MD5 hash: 21513b5044ffb1aed307d1d45a93b968
humanhash: zebra-mirror-enemy-florida
File name:tmp
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'737'152 bytes
First seen:2023-05-14 18:42:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 49152:M4NipEsPd2Sq2jbQ0p3N9b6wMbAkVgIYXmTsWfE5zDmK5iEo/12LeedJyc0:MBzVz3X6TbDT3hE5zSKsxtoJyc
Threatray 145 similar samples on MalwareBazaar
TLSH T1F5C5334D978859CDF2CDDAFA1E99CCBA05976F382911D92848D7AC83B87332849D3473
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)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter JaffaCakes118
Tags:QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
tmp
Verdict:
Malicious activity
Analysis date:
2023-05-14 19:40:47 UTC
Tags:
rat quasar trojan asyncrat
Link:
https://app.any.run/tasks/30062afa-a5a1-4f30-85ae-e089ca582818

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/389831/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.66994455.32090.1741.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Searching for the window
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dde obfuscated packed packed
Link:
https://www.filescan.io/uploads/64612bbeca26a28d5b916186/reports/cbd13085-f2e0-4a17-9268-a34a9ab61bb6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/36493f53-3bb4-4eb8-ba73-44af0c4cbe5d
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232916
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 865896 Sample: tmp.exe Startdate: 14/05/2023 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 6 other signatures 2->63 7 tmp.exe 1 4 2->7         started        11 alertservice.exe 1 2->11         started        13 alertservice.exe 2->13         started        process3 file4 47 C:\Users\user\AppData\...\alertservice.exe, PE32 7->47 dropped 49 C:\Users\user\AppData\Local\...\tmp.exe.log, ASCII 7->49 dropped 51 C:\Users\...\alertservice.exe:Zone.Identifier, ASCII 7->51 dropped 65 Encrypted powershell cmdline option found 7->65 67 Writes to foreign memory regions 7->67 69 Allocates memory in foreign processes 7->69 71 Injects a PE file into a foreign processes 7->71 15 cmd.exe 1 7->15         started        18 aspnet_compiler.exe 15 8 7->18         started        21 cmd.exe 1 7->21         started        27 3 other processes 7->27 73 Multi AV Scanner detection for dropped file 11->73 75 Machine Learning detection for dropped file 11->75 23 powershell.exe 11->23         started        25 powershell.exe 13->25         started        signatures5 process6 dnsIp7 77 Encrypted powershell cmdline option found 15->77 79 Uses ipconfig to lookup or modify the Windows network settings 15->79 29 conhost.exe 15->29         started        31 ipconfig.exe 1 15->31         started        53 38.242.128.85, 49704, 5559 NATIXISUS United States 18->53 55 ipwho.is 195.201.57.90, 443, 49706 HETZNER-ASDE Germany 18->55 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->81 33 powershell.exe 16 21->33         started        35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        43 conhost.exe 27->43         started        45 ipconfig.exe 1 27->45         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2023-05-10 19:17:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=no76nuwkoja6ocyg4r7yqzwrevw6qmqudnxf7nvcagpc64ez2jrq._file
Verdict:
malicious
Similar samples:
28229a2ce2ed4265f4389b7228fb0065ef8656502ca833ef77fe2927a9f85fd8
QuasarRAT
3a62c18261a8f899c82eaed7aeb78c2d284788e55dd6c37cad57701a44df9a86
QuasarRAT
6529401bd18baaa7666ac93568a0f729eb5ac129ad7df7156fc48f3e1d697609
QuasarRAT
787eef5b064487f1e731171de212a2b2a7974a4e8776cd78493c02e1c9592a66
QuasarRAT
8a69059cb39f960058cba45dd63b1b33eba4011bff0cc3e374e4d844393f3acc
QuasarRAT
b97e0964a0dd3ce75ef979e0b95e2aefdf94e9e4f6a7b3cf352a14c0a8d77360
QuasarRAT
d6d76fa5c46ce88e8def28ab03889c00078284de39865f0b00b6b5dce603ce16
QuasarRAT
e3dc423684976ae02183ff7156153303f75d3961decb3215213faa46d0926c69
QuasarRAT
e57f004cdd5d2da92e0429a1fdba612f17852781f389dc855c217341e28dc35b
QuasarRAT
+ 135 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 persistence spyware trojan
Link:
https://tria.ge/reports/230514-xcpjbafd6y/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
38.242.128.85:5559
Unpacked files
SH256 hash:
6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263
MD5 hash:
21513b5044ffb1aed307d1d45a93b968
SHA1 hash:
a58772db16fbd89e84fd9f156a6c0950f78bf129
Link:
https://www.unpac.me/results/4b5833f8-40e7-465e-b2cd-9ce7486a066a/
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/6bbfe6d2ca7241e70b06e47f8866d1256de832141b6e5fb6a2019e2f7099d263

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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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/389831/

Comments