MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b988c0f23891eb55f3c66c0409aa327da666d9b084d309e1d8907976c36027ed. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b988c0f23891eb55f3c66c0409aa327da666d9b084d309e1d8907976c36027ed
SHA3-384 hash: 8b3207d9a45f0e9ba5a1569f74aa6d698ef9f9e63d782ebd9ba6db212210882a9a1e8186dc38dcad1e8503a359d5e40b
SHA1 hash: 7cd30f7f27f5e79d87470fe011f9b0f47ab053bc
MD5 hash: 52cf2b523f2b0ede0c1940612b1c04a9
humanhash: berlin-pluto-black-cup
File name:MV_TBN_SHIP PARTICULARS.docx.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'097'152 bytes
First seen:2022-06-25 08:43:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:TNq0KUc11pOH80jLVtVxBKSXjgnyo3SSWhMTQqJJXanQg:YjLb6VLxrXjjhMUmaN
TLSH T1C7A56A2D6A071B76FD0E9030DD120A08BB660B176383B9D59FDB92CA874FDEDED15884
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 009ce68686a6a200 (1 x QuasarRAT)
Reporter Anonymous
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/283232/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Launching a process
Running batch commands
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62b6cad694f434f9fa8908ac/reports/565a2e23-acc8-4c6a-acea-83d7ccc4daa8/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:
Malicious
Link:
https://analyze.intezer.com/analyses/a3262d7a-3573-44ef-8d21-9f346a19099b
Result
Threat name:
AgentTesla, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019700
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Sigma detected: Schedule system process
Snort IDS alert for network traffic
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected MultiObfuscated
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 652196 Sample: MV_TBN_SHIP PARTICULARS.docx.exe Startdate: 25/06/2022 Architecture: WINDOWS Score: 100 56 prince1234.duckdns.org 2->56 62 Snort IDS alert for network traffic 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 68 17 other signatures 2->68 9 MV_TBN_SHIP PARTICULARS.docx.exe 2 2->9         started        13 svchost.exe 2->13         started        15 explorer.exe 5 2->15         started        17 2 other processes 2->17 signatures3 process4 file5 54 C:\...\MV_TBN_SHIP PARTICULARS.docx.exe.log, ASCII 9->54 dropped 80 Writes to foreign memory regions 9->80 82 Allocates memory in foreign processes 9->82 84 Injects a PE file into a foreign processes 9->84 19 RegAsm.exe 15 6 9->19         started        24 cmd.exe 1 9->24         started        26 cmd.exe 3 9->26         started        86 Multi AV Scanner detection for dropped file 13->86 88 Machine Learning detection for dropped file 13->88 90 Tries to delay execution (extensive OutputDebugStringW loop) 13->90 28 wscript.exe 1 1 15->28         started        30 conhost.exe 17->30         started        32 conhost.exe 17->32         started        signatures6 process7 dnsIp8 58 prince1234.duckdns.org 192.169.69.26, 4782, 49805, 49857 WOWUS United States 19->58 60 ip-api.com 208.95.112.1, 49803, 80 TUT-ASUS United States 19->60 46 C:\Users\user\AppData\Localxecution.vbs, ASCII 19->46 dropped 70 May check the online IP address of the machine 19->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->72 34 schtasks.exe 1 19->34         started        36 explorer.exe 1 19->36         started        74 Uses schtasks.exe or at.exe to add and modify task schedules 24->74 76 Drops PE files with benign system names 24->76 38 conhost.exe 24->38         started        40 schtasks.exe 1 24->40         started        48 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 26->48 dropped 50 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 26->50 dropped 42 conhost.exe 26->42         started        52 C:\Users\user\AppData\Roaming\Venom.exe, PE32 28->52 dropped 78 Benign windows process drops PE files 28->78 file9 signatures10 process11 process12 44 conhost.exe 34->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b988c0f23891eb55f3c66c0409aa327da666d9b084d309e1d8907976c36027ed/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2022-06-07 09:10:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgemb4ryshvvl46gnqcatkrspwtgnwnqqtjqtyoysb4xnq3ae7wq._file
Verdict:
malicious
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:venom client persistence spyware suricata trojan
Link:
https://tria.ge/reports/220625-km58ladeap/
Behaviour
Creates scheduled task(s)
Modifies registry class
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
Executes dropped EXE
Quasar Payload
Quasar RAT
suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 2
suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3
Malware Config
C2 Extraction:
prince1234.duckdns.org:4782
Unpacked files
SH256 hash:
542be6a092437c47aec4c046bf4636f9a3153954b0384141b8cc2922d68a38b5
MD5 hash:
bfb7da75069724d5ec80b44bc2e46d9f
SHA1 hash:
fe757e6a079f7be6efa5d15df7260792560f6576
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
SH256 hash:
866c468f227e0ee2c3614cf97e74ebacf79fecb24845210488d13a42824cf50d
MD5 hash:
b064ffbd0835d50b00ebe34660832ecf
SHA1 hash:
bf5b5bba369127ccc6d740f27e40b2c67b5cf8bd
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
SH256 hash:
3db2b0c012e3e770548b36eb84ea2278f34dfda82a269fc30f38e743b33855e3
MD5 hash:
ef33c4c8efc8c1b355ad64e12b010070
SHA1 hash:
ac30158d8bd81ec0b728a299c9e72789b4f33f31
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
SH256 hash:
c4896c36ed0bda5ad1320e8d035bd001408f7d86620d02732fde49913c2b5866
MD5 hash:
36d68dd1e0e73f4e8f3eb9aacbd1f3d8
SHA1 hash:
abb42512cdaecfbbbad13f02d10e7f72877e5b6b
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
SH256 hash:
c1428ec7129ad3e36dad35d8992602cefcd6a593952834897424314fe029dd4b
MD5 hash:
67ca4c5eed9cab4b08064d4314dc0a86
SHA1 hash:
61dfa1d80d9e6b506d29e3897dd3ca08ade30988
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
Parent samples :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 hash:
3a96d9a797a3b6b3ea0d8264ed1078508df9557e2f453217d52a75907f9b9465
MD5 hash:
547ebc92cac936d8c3459d2765948f4a
SHA1 hash:
09c143d609b65b19a97289ca7645df2a0bc39c83
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
SH256 hash:
b988c0f23891eb55f3c66c0409aa327da666d9b084d309e1d8907976c36027ed
MD5 hash:
52cf2b523f2b0ede0c1940612b1c04a9
SHA1 hash:
7cd30f7f27f5e79d87470fe011f9b0f47ab053bc
Link:
https://www.unpac.me/results/da223085-5c79-49a4-aaf6-a6fea2bbc632/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b988c0f23891/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/b988c0f23891eb55f3c66c0409aa327da666d9b084d309e1d8907976c36027ed

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_EXE_Packed_Babel
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Babel
Rule name:INDICATOR_EXE_Packed_Dotfuscator
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_dotNetProtector
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with dotNetProtector
Rule name:INDICATOR_EXE_Packed_Goliath
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Goliath
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/283232/

Comments