MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0ffa441a13f140ff08492899f44d4d30288f193e68a1affcc0d62e617d1532cd. 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: 18


Intelligence 18 IOCs 1 YARA 18 File information Comments 1

SHA256 hash: 0ffa441a13f140ff08492899f44d4d30288f193e68a1affcc0d62e617d1532cd
SHA3-384 hash: 046a5cd6554e613cfc29f97fd0a308f562a21798f63a8a8020c1514796b8e05d1ee00118e00749a8192df360b9c6ed4b
SHA1 hash: fea20780c2b137ecea31544aa089f67ba4672ffd
MD5 hash: aebbee96c927750b5c6eec97940acc19
humanhash: winner-don-bravo-solar
File name:Client-built.exe
Download: download sample
Signature QuasarRAT
File size:514'048 bytes
First seen:2025-01-17 05:12:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'839 x AgentTesla, 19'772 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 6144:hTEgdc0Y2X7IxUpGREW8MIdTEDdKbDkQfocEiOb8F9rd9wkbIcTR3C:hTEgdfYXxUe2DkSpxwkbIcdC
TLSH T1E0B47D4067F8862BE1AF577AE871042597F4F407B2ABEF4F4A40A1F82D66706AD40773
TrID 40.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
31.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
9.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
5.7% (.EXE) Win64 Executable (generic) (10522/11/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
Reporter lontze7
Tags:exe QuasarRAT

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
93.177.102.208:1337 https://threatfox.abuse.ch/ioc/1384715/

Intelligence


File Origin
# of uploads :
1
# of downloads :
514
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Client-built.exe
Verdict:
Malicious activity
Analysis date:
2025-01-17 05:19:05 UTC
Tags:
rat quasar remote

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
infosteal autorun quasar
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
Creating a process from a recently created file
Creating a file
Connection attempt
Sending a custom TCP request
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm explorer infostealer keylogger lolbin obfuscated obfuscated quasarrat rat remote runonce schtasks stealer stealer vermin
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Suricata IDS alerts 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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1593391 Sample: Client-built.exe Startdate: 17/01/2025 Architecture: WINDOWS Score: 100 41 tools.keycdn.com 2->41 43 api.ipify.org 2->43 59 Suricata IDS alerts for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 8 other signatures 2->65 9 Client-built.exe 5 2->9         started        13 Client-built.exe 2 2->13         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 9->37 dropped 39 C:\Users\user\...\Client-built.exe.log, CSV 9->39 dropped 67 Uses schtasks.exe or at.exe to add and modify task schedules 9->67 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->69 15 Client.exe 8 9->15         started        19 schtasks.exe 1 9->19         started        21 Client.exe 14 8 13->21         started        23 schtasks.exe 1 13->23         started        signatures6 process7 dnsIp8 45 93.177.102.208, 1337, 49731, 49732 ONLINENETTR Turkey 15->45 51 Antivirus detection for dropped file 15->51 53 Multi AV Scanner detection for dropped file 15->53 55 Machine Learning detection for dropped file 15->55 25 schtasks.exe 1 15->25         started        27 conhost.exe 19->27         started        47 tools.keycdn.com 185.172.148.96, 443, 49734 PROINITYPROINITYDE Germany 21->47 49 api.ipify.org 104.26.12.205, 443, 49735 CLOUDFLARENETUS United States 21->49 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->57 29 schtasks.exe 1 21->29         started        31 conhost.exe 23->31         started        signatures9 process10 process11 33 conhost.exe 25->33         started        35 conhost.exe 29->35         started       
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Status:
Malicious
First seen:
2025-01-17 05:13:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
quasarrat
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Looks up external IP address via web service
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
93.177.102.208:1337
Verdict:
Malicious
Tags:
rat quasar_rat vermin stealer Win.Malware.Bulz-9823462-0
YARA:
malware_windows_quasarrat win_quasar_rat_client MAL_QuasarRAT_May19_1 Vermin_Keylogger_Jan18_1 MALWARE_Win_Quasarstealer
Unpacked files
SH256 hash:
0ffa441a13f140ff08492899f44d4d30288f193e68a1affcc0d62e617d1532cd
MD5 hash:
aebbee96c927750b5c6eec97940acc19
SHA1 hash:
fea20780c2b137ecea31544aa089f67ba4672ffd
Detections:
QuasarRAT
Malware family:
QuasarRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MALWARE_Win_QuasarStealer
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
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
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:quasarrat
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Author:jeFF0Falltrades
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
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:win_quasar_rat_client
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information


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

Web download

QuasarRAT

Executable exe 0ffa441a13f140ff08492899f44d4d30288f193e68a1affcc0d62e617d1532cd

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments



Avatar
commented on 2025-01-17 05:15:48 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "0ffa441a13f140ff08492899f44d4d30288f193e68a1affcc0d62e617d1532cd",
"yara_possible_family": "quasarrat",
"key": "d8779496becfc67216ccb680f153aa885bcff5cae6aa1408666d3f0841f05bd5",
"salt": "bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941",
"config": {
"\u0b03\ub61e\u7f4e\ud1fb\u9511\ud7d4\u509c\ud5f6\u96d3\uce5d\u736a\u5dda\ub2ca\ue83d\u2c35\u41f9\u27c3\u28e7\u3e4a\uc4eb": "1.4.0",
"\u258f\uee68\u837d\u4743\u292f\uff88\ub284\u43dd\u7f4f\u6177\uaa10\u981b\u8437\u421d\ua12c\u70e1\uf7a0\u7029\ufd56\ud250": "93.177.102.208:1337;",
"\u7002\ubad9\ue864\ufec4\u3a31\u176d\u7b24\u354d\ucc5a\uf8c0\ufffd\uce92\uc7c9\uf08f\u88c8\ufffd\u94fa\ue68c\ue17e\uc4bc": 3000,
"\u87e4\u8122\u8424\u1166\u8ee7\u7404\ud396\uc795\ua9e7\ud440\ud485\u79a3\u6a15\ubdfb\u0209\ua7b6\u604a\u8d86\u80cf\uc7a9": "APPLICATIONDATA",
"\ua20f\uad86\u1170\u0f65\u919b\u0721\u91c9\uf604\ue726\uaef7\u415d\u8921\u794e\u457f\ua99c\ud224\ud3d7\u9928\ubbeb\u1ba4": "SubDir",
"\u2490\ueb59\ufe3c\ucd1b\ub5ce\u47ff\u67a4\u1725\u0f68\ufef0\u7cf1\u7255\ufffd\u53d6\ua811\u67ce\u752e\u0703\uc6c9\ubb31": "Client.exe",
"\u6fe4\ue6f5\u5952\u55e1\u997c\u0bcc\u8c5a\u815e\u398f\ua31f\u73fe\u6705\uab1e\uae69\ub7e3\u1aff\u2229\ube58\u8ba8\u03bd": true,
"\ub4bc\uad9f\u01c9\u329d\u2f46\u4092\uf52a\ub523\ucf5f\ueb8d\u157d\u94ea\uf79e\u450e\ud78c\u2645\ub3d5\uc11f\u8ede\u3ace": true,
"\u20e0\u7848\u2e21\ua95e\u08a6\u88d4\uf493\u5da3\uc5c8\ub251\ucfc2\u1d5a\u2ecc\ucdc9\u88b38\ua19f\u9787\u9496\u0359": "b1f80fe6-27eb-4a1c-bb91-851d5cd8d500",
"\u3c1c\u52ce\u3c54\u3729\u8c17\u82a7\ufa00\u50a7\u9c24\u3bc4\ucb94\u8d8a\ub339\u09b9\u53af\uecb9\u2af1\u2f59\u3068\u30c7": "Java Updater",
"\uc6d1\u7f54\u759c\u290a\u7a79\u94da\u2255\u92a8\u5ebb\uc236\u4b8b\ua3fd\u83bc\u3c55\u2a5c\u6d3c\u9d82\u96ab\ue163\u653a": false,
"\ud4ed\u3a30\u237e\ubaa8\u5cc3\u6028\u5503\ubc2c\ucde0\u920a\u5c27\ufffd\u8ca2\u8a56\u632a\u0756\ufdf4\ubb83\u3112\u260a": false,
"\ud052\u4632\ub23e\u4baa\u6892\u3ca3\u2de3\ube92\u2ac9\ufffd\u6111\u04b7\ua35a\ucf41\u833f\u6121\u5811\ua462\uf967\u89da": "9C554DBE5929DA2C3E389A9DF35A30153D68038C",
"\u28d0\uf2a2\u2629\u2878\ue8e7\u7b69\u83c7\uc8be\ue29b\u786b\ud0c1\ufffd\u0579\u0b33\ub3de\u0df1\u2744\u79ce\u3df5\ue5bc": "Office04",
"\u7cc6\u1a96\u8837\ua084\u9e5f\u6456\u7333\ue422\u5019\ucf41\u75d0\u3ead\u9906\u6c62\u5b3d\u3ee3\ueb84\u9036\ud26a\ufd97": "Logs",
"\u882d\ub9e2\ua4a4\u98c5\ue2af\u1aa0\u9dc3\uc2eb\uff7e\ubcc0\u612d\ufffd\u6490\u081a\ufffd\u4ced\u9a62\u9601\uc55d\ufc09": "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",
"\uc63c\ud2b0\ue396\ub11c\u8be7\u0e6f\u4406\uaf7e\u9f95\ubbe6\u09ad\ue530\uf277\u7055\u766b\uc167\u91f7\u62f6\u2898\u802e": "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",
"\uff8e\u0d25\u997f\uecb3\u1e01\u277b\ucc43\u3571\uc059\u8e03\u5614\u162d\u8534\uf505\ud494\ub37b\uf4fd\u885d\u263f\u9f81": false,
"\u134b\u0dd2\u3874\ufa4c\ud62d\u0cf1\ud18a\uaeeb\ucdbb\u8786\u7475\u073c\ua661\uff51\u6fe2\u0aad\u70fa\uc495\u6d6f\uf708": false,
"\u9d89\ub65d\u6804\u05d3\uc0ab\uc929\u212e\u0b2d\u309f\u8a05\uecf0\u34f3\u5a0e\u67ee\u756e\u17ba\u33ad\u311b\u7cbc\u5ae8": "",
"\u04af\u0627\ud560\u7b30\uec1d\u4fe5\u7c25\ua038\uced3\u7e04\uf456\ua473\ufffd\ub5eb\u9f45\u6372\ud451\ucb16\uba0d\u6240": "",
"\uc840\u11de\u7f5a\uafee\ua5dc\u0bc2\u9abd\u25a3\u2bd7\u3d12\u6b25\u7e6a\u80f2\u8efe\u7777\u17cf\uafbb\u52b2\u3d74\u9082": false
}
}