MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7840f820c6a51c719f18de44d2f0bfb0f2b7e88c9ab2e3b7a2c310b98180dddb. 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: 13


Intelligence 13 IOCs 2 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7840f820c6a51c719f18de44d2f0bfb0f2b7e88c9ab2e3b7a2c310b98180dddb
SHA3-384 hash: 75221ffd8ae2c4b6809641d441c5b584b8a92e87a3dbcd5bc826fc5da6a8b0a56194c4f1c46d6ac7d225f0b9bc4a67c2
SHA1 hash: a955a0960eeef8b0f61a49f275cfcf50ae0838ae
MD5 hash: d8d7de9a37ba692db22231deefd36e15
humanhash: video-december-high-south
File name:d8d7de9a37ba692db22231deefd36e15.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:514'048 bytes
First seen:2021-09-07 17:54:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:FTEgdc0YNX7IxUpGREW77SS5dYB0gO7VnvCjOcEXOb8J99WAjfMVsarcTR3G:FTEgdfYWxUG7HV/n9WWfMmarcdG
Threatray 141 similar samples on MalwareBazaar
TLSH T1D7B48D4023F8891BE5AF577AE8B29410A7F5E427F22BEB4F5500A1F92D62746CD407B3
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
87.90.86.173:4782 https://threatfox.abuse.ch/ioc/218036/
176.159.113.196:4782 https://threatfox.abuse.ch/ioc/218037/

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d8d7de9a37ba692db22231deefd36e15.exe
Verdict:
Malicious activity
Analysis date:
2021-09-07 17:57:05 UTC
Tags:
trojan rat quasar
Link:
https://app.any.run/tasks/2cad5a70-b247-4caa-a1bf-8c800c322538

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/186103/
Detection(s):
Win.Packed.Downeks-6898097-0
Create hunting rule

Win.Packed.Passwordstealera-9792228-0
Create hunting rule

Win.Malware.Bulz-9823462-0
Create hunting rule

Win.Malware.Generic-9883082-0
Create hunting rule

Win.Malware.Generic-9883083-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for analyzed file
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for recently created files
Sending a custom TCP request
Connection attempt
Setting a keyboard event handler
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/516ae220-f5e6-49dd-a959-a4a01eea25fe
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846844
Signature
.NET source code references suspicious native API functions
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)
Installs a global keyboard hook
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 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 479275 Sample: 1SJ86DhE8d.exe Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 5 other signatures 2->52 8 1SJ86DhE8d.exe 5 2->8         started        12 1SJ86DhE8d.exe 2 2->12         started        process3 file4 36 C:\Users\user\AppData\...\1SJ86DhE8d.exe.log, ASCII 8->36 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 8->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->56 14 operaa.exe 2 8->14         started        17 schtasks.exe 1 8->17         started        38 C:\Users\user\AppData\Roaming\...\operaa.exe, PE32 12->38 dropped 19 operaa.exe 14 2 12->19         started        22 schtasks.exe 1 12->22         started        signatures5 process6 dnsIp7 58 Antivirus detection for dropped file 14->58 60 Multi AV Scanner detection for dropped file 14->60 62 May check the online IP address of the machine 14->62 68 2 other signatures 14->68 24 schtasks.exe 1 14->24         started        26 conhost.exe 17->26         started        40 87.90.86.173, 4782, 49706 BOUYGTEL-ISPFR France 19->40 42 tools.keycdn.com 185.172.148.96, 443, 49708 PROINITYPROINITYDE Germany 19->42 44 3 other IPs or domains 19->44 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->64 66 Installs a global keyboard hook 19->66 28 schtasks.exe 1 19->28         started        30 conhost.exe 22->30         started        signatures8 process9 process10 32 conhost.exe 24->32         started        34 conhost.exe 28->34         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7840f820c6a51c719f18de44d2f0bfb0f2b7e88c9ab2e3b7a2c310b98180dddb/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2021-09-05 14:53:00 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pbapqigguuohdhyy3zcnf4f7wdzlp2emtkzohn5cymiltama3xnq._file
Verdict:
malicious
Similar samples:
04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf
QuasarRAT
06b4062db19ac0017c3f0e32f27559a48aa9c7305f110c3b8485d5faa62d6814
QuasarRAT
1230b290a583361b44a14b0ebf16925f07d7d6ed0d58ecae0bdd2419903d27b0
QuasarRAT
2ba6b9466236aa43a839e4b4c9365dd730cb37ca2ddb009be0f2bcbced0e6d88
QuasarRAT
2c5d00f71931d80367ccae6bdd752ec56ab7647cc5312a0c7ddd24308ff9cc8e
QuasarRAT
3bdfd4cd7aacdefa4ab159a25b056056fd011b9ad60fc2166adbb41c5610b044
QuasarRAT
3fb8ef0e57d3cbad82483cba016a1380698f2efca89d80d29d2cfab35b5c5cce
QuasarRAT
85e13a72f67635d8590b1952332a37371f5f06400cedd60cd8c85415a051c031
QuasarRAT
8be3c7231a1d547531c3e669d380fd00b5b3e773da201b34bed04810062329c0
QuasarRAT
a33be1069f51683e3ef5290bedad88f032df7b67fde8955bf2ad72b2f8d5e647
QuasarRAT
+ 131 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:wallp spyware suricata trojan
Link:
https://tria.ge/reports/210907-whfmxsgcfj/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Executes dropped EXE
Quasar Payload
Quasar RAT
suricata: ET MALWARE Observed Malicious SSL Cert (Quasar CnC)
Malware Config
C2 Extraction:
87.90.86.173:4782
Unpacked files
SH256 hash:
7840f820c6a51c719f18de44d2f0bfb0f2b7e88c9ab2e3b7a2c310b98180dddb
MD5 hash:
d8d7de9a37ba692db22231deefd36e15
SHA1 hash:
a955a0960eeef8b0f61a49f275cfcf50ae0838ae
Link:
https://www.unpac.me/results/9258a18e-51de-4b25-aab8-ddd7a388520d/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7840f820c6a5/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/7840f820c6a51c719f18de44d2f0bfb0f2b7e88c9ab2e3b7a2c310b98180dddb

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: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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/186103/

Comments