MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0. 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 20 File information Comments
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SHA256 hash: c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0
SHA3-384 hash: efcacbbfa272bb2d76a5829b530cf86269028b3f5ae98b74be9829e26fb1760ee39e2965f9429cd515a72296b171bb1a
SHA1 hash: 6ca4db6b3dfde588b8454192c4a6aa5c7f3915fe
MD5 hash: a8a6182341c07e476d3b2e4ae24fbb14
humanhash: rugby-lamp-august-four
File name:kdnfkjs.sfx.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:892'416 bytes
First seen:2023-03-06 18:02:21 UTC
Last seen:2023-03-06 19:28:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:ADX8QgHpIE80Lk6FJM3E0BoZjfu1eLLz055uc:ADSHpX80LHnN0iRfuS8Q
Threatray 348 similar samples on MalwareBazaar
TLSH T11E1522493258B3CECC77C5B2EBA85D90AB10307B53074213E55B21E9AE0DB82DF5A5B7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon ecd292d2ecd2d2de (3 x QuasarRAT)
Reporter TeamDreier
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
246
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
kdnfkjs.sfx.exe
Verdict:
Malicious activity
Analysis date:
2023-03-06 18:04:20 UTC
Tags:
evasion quasar
Link:
https://app.any.run/tasks/d19987c3-7b92-437a-b9eb-bcca32968701

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/372097/
Detection(s):
PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a window
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
confuserex net packed quasar
Link:
https://www.filescan.io/uploads/64062ad766e79c93ba0e4be2/reports/a527c0bc-933f-4614-b1c0-6bd610a1d17d/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0
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.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/26ff99bd-c7ae-4aba-9c68-374869f39e02
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1188029
Signature
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)
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)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 820905 Sample: kdnfkjs.sfx.exe Startdate: 06/03/2023 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 6 other signatures 2->58 10 kdnfkjs.sfx.exe 1 2->10         started        14 kdnfkjs.sfx.exe 2->14         started        process3 file4 42 C:\Users\user\AppData\...\kdnfkjs.sfx.exe.log, ASCII 10->42 dropped 70 May check the online IP address of the machine 10->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 10->72 74 Injects a PE file into a foreign processes 10->74 16 kdnfkjs.sfx.exe 15 4 10->16         started        21 kdnfkjs.sfx.exe 14->21         started        signatures5 process6 dnsIp7 44 ip-api.com 208.95.112.1, 49719, 49720, 80 TUT-ASUS United States 16->44 40 C:\Users\user\AppData\Roaming\mvi\msi.exe, PE32 16->40 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->60 23 msi.exe 1 16->23         started        26 schtasks.exe 1 16->26         started        28 WerFault.exe 21->28         started        file8 signatures9 process10 signatures11 62 Multi AV Scanner detection for dropped file 23->62 64 May check the online IP address of the machine 23->64 66 Machine Learning detection for dropped file 23->66 68 Injects a PE file into a foreign processes 23->68 30 msi.exe 14 2 23->30         started        34 conhost.exe 26->34         started        process12 dnsIp13 46 dnuocc.com 185.254.37.238, 49721, 49722, 49723 NETERRA-ASBG Germany 30->46 48 www.dnuocc.com 30->48 50 2 other IPs or domains 30->50 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->76 36 schtasks.exe 1 30->36         started        signatures14 process15 process16 38 conhost.exe 36->38         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2023-03-06 13:48:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdiljst34uovrw7uzfkeca6rk4zqa7hptzkrk4yngv6slxdxg6ya._file
Verdict:
malicious
Similar samples:
051851a940f92112ddf290124d2cea4acd2d0d1f2522c8e942faef9ed6fff244
QuasarRAT
0579f660e3087207714180f271bd21e9ecaea4e7103e1a140ebadf378473416f
QuasarRAT
100f14bd43501076a1b9dc89bdbc702aadbe65054c05e4bdf9ad8f0000d1c699
QuasarRAT
126a6947bb766d06e7f1eb176b6fa573e72c72dd0f705a99df1e335b7839b134
QuasarRAT
3d76f59c4dceb13546eb9c72a7c0f03fd335093583d326de9a314f3dbd5a77cc
QuasarRAT
52807927efca34144cfa56a3868a913858fa0fc74aeb0b370964688ec49f1312
QuasarRAT
60cc9c3bdd9a4317b29e7b28c1ecdda262630c52174fbf133b08a6cc1c982747
QuasarRAT
b9d9a182e7f6f1afaf0f5058def2ca3e4e65f71a387c228c0a098b6c41b6d319
QuasarRAT
e1993021c0575594ff63f2685d56f1e80c60d6fc67e5e86ff1c5ef7b25f773d5
QuasarRAT
+ 338 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:swl spyware trojan
Link:
https://tria.ge/reports/230306-wm1hwsdh2y/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
www.dnuocc.com:64577
dnuocc.com:64577
Unpacked files
SH256 hash:
b1d7f8f577082a3d1cbf437a80a0850fc8de8c0dea95b6da1446c7dc703ddc79
MD5 hash:
1d5184241b79757452630c198a9bd056
SHA1 hash:
870be6ecf84227c20ec4862e7b7eaaf8f9db4188
Link:
https://www.unpac.me/results/862fecf8-af1e-4d9b-aef7-e2e9501e5868/
SH256 hash:
c7fafb2aac353223a59c1e3788e46e0e6132c7434d0a7017b78533e3fa479f05
MD5 hash:
5cd6368414849cb25fe05567ee29a3c6
SHA1 hash:
5a8717e5fa5044660c7de74ca265764c57bdbb62
Link:
https://www.unpac.me/results/862fecf8-af1e-4d9b-aef7-e2e9501e5868/
SH256 hash:
c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0
MD5 hash:
a8a6182341c07e476d3b2e4ae24fbb14
SHA1 hash:
6ca4db6b3dfde588b8454192c4a6aa5c7f3915fe
Link:
https://www.unpac.me/results/862fecf8-af1e-4d9b-aef7-e2e9501e5868/
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/c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0

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:CN_disclosed_20180208_KeyLogger_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
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:Quasar_RAT_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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 (Nextron Systems)
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Trojan_Quasarrat_e52df647
Create hunting rule
Author:Elastic Security
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information

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

Web download

QuasarRAT

Executable exe c8d0b4ca7be51d58dbf4c9544103d15733007cef9e5515730d357d25dc7737b0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2560055/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/372097/

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