MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ec6cce510d69c335c5be169b3919181d7c785d48759a89a2051cbadb522c337. 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: 11


Intelligence 11 IOCs 1 YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5ec6cce510d69c335c5be169b3919181d7c785d48759a89a2051cbadb522c337
SHA3-384 hash: c022e8e732ab22339665e165737b964978e527ce0c66512ee030a8a4152f8c2e0ac03e5f0bdb2a75d3ffbfea0bd1f4b3
SHA1 hash: 70221f55d2ef65ac6ff94b36a4b9c6b9e11dfeff
MD5 hash: b0b7de58bb0c405811b93c53484389ea
humanhash: table-rugby-pasta-lactose
File name:b0b7de58bb0c405811b93c53484389ea.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:40'448 bytes
First seen:2022-05-07 19:32:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:6qVRJROv5ejQM4OqXkHhS3fzUAAeTSvh0iiFQxUAAtJar+8DjcOz6Ev78nqh4r+G:g5ejzA2vbMJa6ijcG6kwrI
Threatray 751 similar samples on MalwareBazaar
TLSH T150038D4A7768C725C59D0B31D8B7C7F40B78AC05EC149B0F6696B62F3C71390AB936A8
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 79a486868eb6f2e0 (2 x AgentTesla, 2 x Fabookie, 1 x QuasarRAT)
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
37.48.117.136:4782

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
37.48.117.136:4782 https://threatfox.abuse.ch/ioc/548860/

Intelligence

File Origin
# of uploads :
1
# of downloads :
367
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
b0b7de58bb0c405811b93c53484389ea.exe
Verdict:
Malicious activity
Analysis date:
2022-05-07 19:34:36 UTC
Tags:
trojan rat quasar asyncrat
Link:
https://app.any.run/tasks/76fc9f20-3072-41b2-95f9-bfcb1a7e736b

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/269269/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6276c973be0219041a7cdb8d/reports/7904205f-52fe-4f24-a9b7-eff01da96123/overview
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:
Unknown
Link:
https://analyze.intezer.com/analyses/a1339cf0-2e4b-490c-a37e-bd1ee5297168
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/989546
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 622042 Sample: Okp6giatTx.exe Startdate: 07/05/2022 Architecture: WINDOWS Score: 100 49 tools.keycdn.com 2->49 51 api.ipify.org.herokudns.com 2->51 53 api.ipify.org 2->53 67 Snort IDS alert for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 6 other signatures 2->73 8 Okp6giatTx.exe 16 7 2->8         started        13 Qmcxgvko.exe 14 3 2->13         started        15 Qmcxgvko.exe 3 2->15         started        signatures3 process4 dnsIp5 55 cdn.discordapp.com 162.159.134.233, 443, 49740 CLOUDFLARENETUS United States 8->55 39 C:\Users\user\AppData\...\Qmcxgvko.exe, PE32 8->39 dropped 41 C:\Users\user\AppData\...\Okp6giatTx.exe.log, ASCII 8->41 dropped 75 Writes to foreign memory regions 8->75 77 Injects a PE file into a foreign processes 8->77 17 InstallUtil.exe 14 2 8->17         started        21 cmd.exe 1 8->21         started        57 162.159.129.233, 443, 49804 CLOUDFLARENETUS United States 13->57 79 Multi AV Scanner detection for dropped file 13->79 23 cmd.exe 13->23         started        59 162.159.135.233, 443, 49805 CLOUDFLARENETUS United States 15->59 25 cmd.exe 15->25         started        file6 signatures7 process8 dnsIp9 43 37.48.117.136, 4782, 49789, 49834 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 17->43 45 tools.keycdn.com 185.172.148.96, 443, 49797, 49835 PROINITYPROINITYDE Germany 17->45 47 3 other IPs or domains 17->47 61 May check the online IP address of the machine 17->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->65 27 conhost.exe 21->27         started        29 timeout.exe 1 21->29         started        31 conhost.exe 23->31         started        33 timeout.exe 23->33         started        35 conhost.exe 25->35         started        37 timeout.exe 25->37         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5ec6cce510d69c335c5be169b3919181d7c785d48759a89a2051cbadb522c337/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-03 15:17:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
23 of 42 (54.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l3dmzziq22odgxc34fu3hemrqhl4pbouq5m2rgrakhf23njcym3q._file
Verdict:
malicious
Similar samples:
089c37a0afa3e281d1784c54442e67572690496a7795f28d93fa9cc3284e93c4
QuasarRAT
3664c59f198b6e3ec2bc254b9758fe20046b4cddd0a35f3e9c8fbf631c5a8a50
QuasarRAT
37e3a3e4a0b161fbfd16602bb993ceeb34a7f25f2fc6d36459cc35afbff92363
QuasarRAT
791b2bf682699cf97e3925dee40ddd5c2cb728e80f798225a7fb0b713c1b1544
QuasarRAT
9213771d3c5189ae487f47c552a34856d2298ed22aac305bc5f29c03212312ea
QuasarRAT
f366cb892570b264ce73bd7c818ee214f0e5f00dc008a4dac5fa5cdc095ddab7
QuasarRAT
+ 741 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04 persistence spyware suricata trojan
Link:
https://tria.ge/reports/220507-x9hf9sfehm/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Quasar Payload
Quasar RAT
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (Quasar CnC)
Malware Config
C2 Extraction:
37.48.117.136:4782
Unpacked files
SH256 hash:
5ec6cce510d69c335c5be169b3919181d7c785d48759a89a2051cbadb522c337
MD5 hash:
b0b7de58bb0c405811b93c53484389ea
SHA1 hash:
70221f55d2ef65ac6ff94b36a4b9c6b9e11dfeff
Link:
https://www.unpac.me/results/ea523844-ff57-47d6-af96-3b2310e428a2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/5ec6cce510d69c335c5be169b3919181d7c785d48759a89a2051cbadb522c337

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

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/269269/

Comments