MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf
SHA3-384 hash: f19a604620c3698f011640c5f8882900352c62929df2fa0fa68ba23ad8f7e02076bc3aa1eb170f5afe618ff9267640d7
SHA1 hash: baa938cd1993cf0f9cbce70fb26ad149fe67869c
MD5 hash: a5b4252c8bac59ad90a543ec1f2e4a7a
humanhash: magazine-apart-tennis-nebraska
File name:a5b4252c8bac59ad90a543ec1f2e4a7a.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:582'144 bytes
First seen:2020-11-19 06:17:30 UTC
Last seen:2020-11-24 22:51:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:9fTEgdc0YJXc2rao+RGmVtO38uKgRsxbVscEJOb8F9cvw02cTR3qS0mtvO6TT34y:JTEgdfYtraTqssZpCp2cdFZ
Threatray 26 similar samples on MalwareBazaar
TLSH 86C46B4023F8851AE1BE5779E87115315BFAEC0BB276FB4F4451B1ED2C667029E80BA3
Reporter abuse_ch
Tags:exe QuasarRAT RAT


Avatar
abuse_ch
QuasarRAT C2:
69.51.24.27:666

Intelligence

File Origin
# of uploads :
3
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Packed.Downeks-6898097-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the system32 subdirectories
Launching a process
Sending a UDP request
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
Setting a keyboard event handler
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
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:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/542257
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
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)
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: 320227 Sample: kU5X1R70UQ.exe Startdate: 19/11/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 4 other signatures 2->40 8 kU5X1R70UQ.exe 5 2->8         started        12 kU5X1R70UQ.exe 2 2->12         started        process3 file4 26 C:\Windows\System32\...\Instagramv164.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\...\kU5X1R70UQ.exe.log, ASCII 8->28 dropped 42 Detected unpacking (overwrites its own PE header) 8->42 44 Drops executables to the windows directory (C:\Windows) and starts them 8->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->46 14 Instagramv164.exe 14 2 8->14         started        18 schtasks.exe 1 8->18         started        signatures5 process6 dnsIp7 30 tools.keycdn.com 185.172.148.96, 443, 49700 PROINITYPROINITYDE Germany 14->30 32 69.51.24.27, 49698, 666 ANYNODEUS United States 14->32 48 Antivirus detection for dropped file 14->48 50 Multi AV Scanner detection for dropped file 14->50 52 Detected unpacking (overwrites its own PE header) 14->52 54 4 other signatures 14->54 20 schtasks.exe 1 14->20         started        22 conhost.exe 18->22         started        signatures8 process9 process10 24 conhost.exe 20->24         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf/
Threat name:
ByteCode-MSIL.Trojan.Perseus
Create hunting rule
Status:
Malicious
First seen:
2020-11-18 14:16:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=atkoxw3ja5e3qtluiiwmxnmdvtbrqdf6h2zibopm4u7pl2z3hk7q._file
Verdict:
malicious
Similar samples:
06b4062db19ac0017c3f0e32f27559a48aa9c7305f110c3b8485d5faa62d6814
QuasarRAT
1aabe4a4ce09025edf03501ea5cce117d4315f4baa19c0110e1c779ae2bd9ad3
QuasarRAT
3a83d1211c8a9235a72f0dcea5c36ec53a99ed83340e35097e7f41773bc8fb3f
QuasarRAT
48d3e4804c326bea85228d97194d5b803b1226e892219328904e2c788b149e27
QuasarRAT
585e4146923404bbe11c2cf5a423e2650a5d133541e9baeacb64a4d675f6484d
QuasarRAT
85e13a72f67635d8590b1952332a37371f5f06400cedd60cd8c85415a051c031
QuasarRAT
95cc530b09ac9303c73e4c781d90bde4d57121f8c037889e303c363c898310e5
QuasarRAT
ac4d3acc896cc3fd6e4ba14547572dfc0447f47f2c29c28a170db4b0169c6e2f
QuasarRAT
d3922882bfee49abb72584b9d5918f3787221fa40b7f552c98d7bc0e55833234
QuasarRAT
ee2e84f75b0b6043c2a2e3b84bdeabc0be4a4a1e4c6ec6a3ff255963b545425d
QuasarRAT
+ 16 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201119-wq3tsh84ax/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Executes dropped EXE
Unpacked files
SH256 hash:
04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf
MD5 hash:
a5b4252c8bac59ad90a543ec1f2e4a7a
SHA1 hash:
baa938cd1993cf0f9cbce70fb26ad149fe67869c
Link:
https://www.unpac.me/results/e530351e-dc8e-4229-88f2-9ca239094fd0/
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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo

File information

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

Web download

QuasarRAT

Executable exe 04d4ebdb690749b84d74422ccbb583acc3180cbe3eb280b9ece53ef5eb3b3abf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/830577/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/830574/

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