MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d. 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: 12


Intelligence 12 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d
SHA3-384 hash: 3664d9abf09c1ca0a06d68b145c442453785add92c31e524f0f1f83a2c80c9c0a37fb4c2e0d6369e11ce289f1c2f036e
SHA1 hash: 044502e7191827a44a580c7665d7a013141f2774
MD5 hash: 7f8c68dc83369e4da501359183e53a47
humanhash: berlin-bakerloo-sad-carbon
File name:7f8c68dc83369e4da501359183e53a47.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:578'048 bytes
First seen:2021-08-14 07:00:09 UTC
Last seen:2021-08-14 07:57:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:l8wczx37qSmnAOSratYcoNlnR6p8xdrQRytGbuPc8p1r1Awywx5T4H0bMeo/s3O:l8wEp705q8Yc2lnuqFNhPrJV50Ue
Threatray 119 similar samples on MalwareBazaar
TLSH T1E8C437908EEFDECEC26F663FA04A0C8215DED3060757A2E58F465E35B3845239C664E7
dhash icon 0cd2c1c4d0c1f20c (18 x AsyncRAT, 9 x QuasarRAT, 8 x RedLineStealer)
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7f8c68dc83369e4da501359183e53a47.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-14 07:06:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7d319f08-3257-4afc-8001-5ceb23626cb7

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/179184/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.19820.75.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Verdict:
UNKNOWN
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:
Loki
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5efb4934-eadc-4aaf-a8e9-b0f3e9c2b990
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/832801
Signature
.NET source code contains potential unpacker
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 465233 Sample: FVi7vHSOUL.exe Startdate: 14/08/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 4 other signatures 2->46 6 FVi7vHSOUL.exe 1 7 2->6         started        9 NVA.exe 5 2->9         started        12 NVA.exe 2 2->12         started        process3 file4 26 C:\Users\user\AppData\...\FVi7vHSOUL.exe, PE32 6->26 dropped 28 C:\Users\user\AppData\Local28VA.exe, PE32 6->28 dropped 30 C:\Users\...\FVi7vHSOUL.exe:Zone.Identifier, ASCII 6->30 dropped 36 2 other malicious files 6->36 dropped 14 FVi7vHSOUL.exe 2 6->14         started        32 C:\Users\user\AppData\Local\Temp32VA.exe, PE32 9->32 dropped 34 C:\Users\user\...34VA.exe:Zone.Identifier, ASCII 9->34 dropped 48 Multi AV Scanner detection for dropped file 9->48 50 Machine Learning detection for dropped file 9->50 18 NVA.exe 2 9->18         started        20 NVA.exe 12->20         started        22 NVA.exe 12->22         started        24 NVA.exe 12->24         started        signatures5 process6 dnsIp7 38 societyf500.ddns.net 37.238.146.69, 5490 EARTHLINK-ASIQ Iraq 14->38 52 Multi AV Scanner detection for dropped file 18->52 54 Machine Learning detection for dropped file 18->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->56 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-08-14 07:00:13 UTC
AV detection:
11 of 47 (23.40%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gfiv7yteglluqqfdvklwnw2egzhc7gqguhgum2onh342nw73tygq._file
Verdict:
malicious
Similar samples:
1b7d7515f98891cf08164a7469bb9c9f3133e7834cfe99d55094594ca330e982
QuasarRAT
6aa2fe6952b62b82e1dfba07382351d3d29ba21838d7cc7ddaf131aa9ee445d0
QuasarRAT
7bfa1a2593f74120d8f9ad1cdae68a06f22c86fdcc58eb9ecb3471b500330867
QuasarRAT
92e66be0b7c24b96cfa89154c5ddf622ef8cfdf189fd7653c794ec03635f731c
QuasarRAT
9965e241e8be54aad4bf1aacb31a9170a9c9a7cd60a44d4056b5b8aad495b316
QuasarRAT
a484efc646ba0e97435959b7f4e87cf9a716d69623b13bc490a41e140dd296b7
QuasarRAT
c0eee6869cb1d1b6c8309151b45795b8866f7171b365dc29f7610cf385264239
QuasarRAT
d2d3f197a13bdd19a00bc0a2e1de1704f3103142d723b0a6a0ab522aa0bd4524
QuasarRAT
e5daabcee417a3138938c563a3bb420cf9817cac24ec380b7fbe00614aaa8e9a
QuasarRAT
+ 109 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office04w persistence spyware trojan
Link:
https://tria.ge/reports/210814-7zl9tsszkx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
societyf500.ddns.net:5490
Unpacked files
SH256 hash:
10ee051a6280fe112476c86a3b0b5e390b446a7ebe40ed96fb571fbb1d0f8bcb
MD5 hash:
ce4fbc463a2ff37c9993a8dd6e6bba2a
SHA1 hash:
c10979b1c4e617b2572ddda3fb45a8932cfc2426
Link:
https://www.unpac.me/results/c7f93fc7-65ef-4099-8975-7a08b8803fe7/
SH256 hash:
8cf6a7b913e716f665a595c3ec239cc43eb818c820ca3255355a73e1c1777750
MD5 hash:
0e5c92b04a97ab7861bad2952bcd840d
SHA1 hash:
9f7fe55e488d2a2a3155b72a64d7aaf1606ee244
Link:
https://www.unpac.me/results/c7f93fc7-65ef-4099-8975-7a08b8803fe7/
SH256 hash:
e94b8438f115e08a03a6bd462a39db153a0da74a48496110b9ada09e6fa57135
MD5 hash:
4707a3cb427cc8d93c5364d58957f49c
SHA1 hash:
0ace65e855b0c14ed068999ed9a3ba511db737c8
Link:
https://www.unpac.me/results/c7f93fc7-65ef-4099-8975-7a08b8803fe7/
SH256 hash:
31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d
MD5 hash:
7f8c68dc83369e4da501359183e53a47
SHA1 hash:
044502e7191827a44a580c7665d7a013141f2774
Link:
https://www.unpac.me/results/c7f93fc7-65ef-4099-8975-7a08b8803fe7/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/31515fe26432/report/overview.html
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/31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d

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_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
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:pe_imphash
Create hunting rule
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
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/

File information

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

Web download

QuasarRAT

Executable exe 31515fe26432d74840a3aa9766db44364e2f9a06a1cd4669cd3ef9a6dbfb9e0d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/179184/
  
URLhaus
https://urlhaus.abuse.ch/url/1392911/
  
Delivery method
Distributed via web download

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