MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50. 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: 15


Intelligence 15 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
SHA3-384 hash: aaaf9b779ced2f97fd6fce6c4e9cfdc8e7c3f941e57b4f02b349804f7f2d8ef669c9cb1eadfbf4d6ba2f078f6967bb9e
SHA1 hash: 44d920bb28588fbdfb42614807602d4cbe43093c
MD5 hash: 77639684385a890f7ee4e9d533547342
humanhash: gee-lithium-three-zulu
File name:Informacion.pdf.com
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'440'958 bytes
First seen:2023-07-11 12:47:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 24576:WNA3R5drXPbrwUWTKl5oIbaCLb0lFI5rHMUFsxjH2sgaif5XvjKp7:35jcovoIbVLIsJHQ52j4
Threatray 849 similar samples on MalwareBazaar
TLSH T15A65CE866AD14362D16E853225ADB9F0E1EDF81C2A25DDCF26F4F348823334FD26B615
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 70d4aacccc8ac460 (8 x AsyncRAT, 2 x QuasarRAT, 1 x njrat)
Reporter TeamDreier
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Informacion.pdf.com
Verdict:
Suspicious activity
Analysis date:
2023-07-11 12:50:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/70788d89-57e5-44a7-9739-683008df3a1b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/415600/
Detection(s):
Win.Dropper.QuasarRAT-9985767-0
Create hunting rule

SecuriteInfo.com.Troj.NanoCo_TZ.22029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process from a recently created file
Creating a file in the %AppData% directory
Creating a file
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/97152/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
greyware lolbin masquerade overlay packed quasar replace setupapi shdocvw shell32
Link:
https://www.filescan.io/uploads/64ad4f8c57d1eb6a904eff46/reports/059b4a19-7b9e-4d50-baa7-f3f08ed90c6c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
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/47f3173d-eb1c-4da2-8204-97f2745a58dc
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1270868
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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
PE file has nameless sections
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: 1270868 Sample: Informacion.pdf.com.exe Startdate: 11/07/2023 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 8 other signatures 2->57 11 Informacion.pdf.com.exe 9 2->11         started        14 cdbgfinkjbf.exe 2->14         started        process3 file4 41 C:\Users\user\AppData\...\cdbgfinkjbf.sfx.exe, PE32 11->41 dropped 16 cmd.exe 1 11->16         started        18 cdbgfinkjbf.exe 14->18         started        process5 process6 20 cdbgfinkjbf.sfx.exe 7 16->20         started        24 conhost.exe 16->24         started        26 WerFault.exe 18->26         started        file7 39 C:\Users\user\AppData\...\cdbgfinkjbf.exe, PE32 20->39 dropped 59 Multi AV Scanner detection for dropped file 20->59 28 cdbgfinkjbf.exe 1 20->28         started        signatures8 process9 signatures10 61 Antivirus detection for dropped file 28->61 63 Multi AV Scanner detection for dropped file 28->63 65 Detected unpacking (changes PE section rights) 28->65 67 3 other signatures 28->67 31 cdbgfinkjbf.exe 15 2 28->31         started        process11 dnsIp12 43 2.59.255.71, 64594 CMCSUS Germany 31->43 45 kolptyubeatcam.sytes.net 31->45 47 2 other IPs or domains 31->47 49 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->49 35 schtasks.exe 1 31->35         started        signatures13 process14 process15 37 conhost.exe 35->37         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50/
Threat name:
Win32.Backdoor.QuasarRAT
Create hunting rule
Status:
Malicious
First seen:
2023-07-08 12:40:05 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=263uhm2yfb24pea2blyf7fbi5covblwlggkcl55iadeasjhydjia._file
Verdict:
malicious
Similar samples:
09fc13e3020a1103924eec6a746f95e61b826d1d9315b5ea0d3036653d23afaa
QuasarRAT
2f99e627f3cf5b119435e4e247366ccd20a0379c6fa47673cbd66976693ecee1
QuasarRAT
36baf9c7d6ed1aa739eb8bf2d3ad8eccc5419a6edd780b0738e2e33d55d9fe94
QuasarRAT
5c0b34aff5e71ceed5b16e73b68435a85244a9631d7049ac0bb2898fdcbf6b04
QuasarRAT
866b5bcc067af55b26fae2013af4310fb27381a585e720a1dd39c722f1a18c19
QuasarRAT
8e9a3943e6d8e8409b427e7ad9f60e43164d8ea99ae2755df7804013508c15a2
QuasarRAT
c8b6408f8e418a7ea723344e0a0d129f6cae5495228e830cbdc99a0b033df962
QuasarRAT
e690896d7f40d40a1cdbeb6348a72207af6cd5e150d036a729760e23ac575816
QuasarRAT
e73cf978acde72a0ec094a6fe4302cd7e369624fe183057d01a1c47fd878324f
QuasarRAT
+ 839 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:hbop spyware trojan
Link:
https://tria.ge/reports/230711-p1r1caab4x/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
2.59.255.71:64594
kolptyubeatcam.sytes.net:64594
fronpeatcam.publicvm.com:64595
Unpacked files
SH256 hash:
3e7f324ae83335818a027971a5819ae5977c97c3dc92268a2d9eee0034ed86d2
MD5 hash:
154fbe02637546fa83afcafd0c8a39a2
SHA1 hash:
bb0859894064d2e1aafcee293930b733948d2053
Detections:
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
Parent samples :
0eb70a7488f69f9968ef86c6cb29a208bf5e72f1db19197a26457ea343e15fad
d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
SH256 hash:
3e7f324ae83335818a027971a5819ae5977c97c3dc92268a2d9eee0034ed86d2
MD5 hash:
154fbe02637546fa83afcafd0c8a39a2
SHA1 hash:
bb0859894064d2e1aafcee293930b733948d2053
Detections:
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
Parent samples :
0eb70a7488f69f9968ef86c6cb29a208bf5e72f1db19197a26457ea343e15fad
d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
SH256 hash:
d5e4f5e91cdde3be7ba93ae9fa3c6f216795ab327c7ab18c00bf0e3a3f5553d6
MD5 hash:
7d82b7ba86dbe0abfadcddfc7db8bf06
SHA1 hash:
ba52c9f1c5fdfaeea25bb62c758e2ecb7a04d658
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
d5e4f5e91cdde3be7ba93ae9fa3c6f216795ab327c7ab18c00bf0e3a3f5553d6
MD5 hash:
7d82b7ba86dbe0abfadcddfc7db8bf06
SHA1 hash:
ba52c9f1c5fdfaeea25bb62c758e2ecb7a04d658
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
3e7f324ae83335818a027971a5819ae5977c97c3dc92268a2d9eee0034ed86d2
MD5 hash:
154fbe02637546fa83afcafd0c8a39a2
SHA1 hash:
bb0859894064d2e1aafcee293930b733948d2053
Detections:
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
Parent samples :
0eb70a7488f69f9968ef86c6cb29a208bf5e72f1db19197a26457ea343e15fad
d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
SH256 hash:
d5e4f5e91cdde3be7ba93ae9fa3c6f216795ab327c7ab18c00bf0e3a3f5553d6
MD5 hash:
7d82b7ba86dbe0abfadcddfc7db8bf06
SHA1 hash:
ba52c9f1c5fdfaeea25bb62c758e2ecb7a04d658
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
1b1210a8e5277de40b325dcad979458bad2e2d1ea2eba4e643ad29c860983673
MD5 hash:
e3292301dad2638408f5e186a94f2f86
SHA1 hash:
a370d1b30c25f309a1a58c3942014662053edc84
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
1b1210a8e5277de40b325dcad979458bad2e2d1ea2eba4e643ad29c860983673
MD5 hash:
e3292301dad2638408f5e186a94f2f86
SHA1 hash:
a370d1b30c25f309a1a58c3942014662053edc84
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
1b1210a8e5277de40b325dcad979458bad2e2d1ea2eba4e643ad29c860983673
MD5 hash:
e3292301dad2638408f5e186a94f2f86
SHA1 hash:
a370d1b30c25f309a1a58c3942014662053edc84
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
SH256 hash:
d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50
MD5 hash:
77639684385a890f7ee4e9d533547342
SHA1 hash:
44d920bb28588fbdfb42614807602d4cbe43093c
Link:
https://www.unpac.me/results/dd9bdff1-3cfd-40ec-9b60-422825ac96e6/
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: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_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:@SOCRadar
Description:Detects Quasar RAT
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
Description:Detects Quasar RAT
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:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
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.

Malspam

QuasarRAT

Executable exe d7b743b3582875c7901a0af05f9428e89d50aecb319425f7a800c80924f81a50

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/415600/

Comments