MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97cfde3665f5af9b1cde9fc4f4e27144d24ae85fed47f407f576eadc6a43649f. 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 1 File information Comments

SHA256 hash: 97cfde3665f5af9b1cde9fc4f4e27144d24ae85fed47f407f576eadc6a43649f
SHA3-384 hash: dfa32e1634b87e4ebe849fdcbc9ffde1ce7e9b3647e0d53a303aed6a25e966ef810286ab685954f00c366225251cf716
SHA1 hash: 43fd4ec101d09a25d3db3c3b139ad8f36972c4b1
MD5 hash: 8aa1b34d887681430565674c6b9687b0
humanhash: berlin-robert-lamp-island
File name:SecuriteInfo.com.Gen.Variant.Nemesis.9054.30047.27368
Download: download sample
Signature QuasarRAT
File size:552'864 bytes
First seen:2022-07-13 15:41:19 UTC
Last seen:2022-07-13 16:33:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT)
ssdeep 12288:0HP96Y3YWGuHvF9ssGRUhQgFpTqpWbzzhRPr4t:0wXWGuHNWZUhQWJ42zz/Pw
Threatray 15'721 similar samples on MalwareBazaar
TLSH T113C4E00D7664C817CBC076318FBAC6321B69AC4E654143872AF8BE1B3DFD2678D562B1
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe QuasarRAT signed

Code Signing Certificate

Organisation:Notabelt laasesmede produktionsudvidelser sprogrigtigheder
Issuer:Notabelt laasesmede produktionsudvidelser sprogrigtigheder
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-13T13:33:41Z
Valid to:2023-07-13T13:33:41Z
Serial number: 624cbc47901fc282
Thumbprint Algorithm:SHA256
Thumbprint: f4fe25fb9602765de4fede12328928e5e6a85aec048622308ebfd5f6b54f3ffb
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Extracto de sus Productos de Credito 20220713.msg
Verdict:
Malicious activity
Analysis date:
2022-07-13 16:17:31 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
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:
GuLoader, Quasar
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Drops PE files to the document folder of the user
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 662836 Sample: SecuriteInfo.com.Gen.Varian... Startdate: 13/07/2022 Architecture: WINDOWS Score: 100 26 colpatvalidacionnuevo.xyz 2->26 28 ip-api.com 2->28 36 Snort IDS alert for network traffic 2->36 38 Antivirus detection for URL or domain 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 8 SecuriteInfo.com.Gen.Variant.Nemesis.9054.30047.exe 5 48 2->8         started        signatures3 process4 file5 18 C:\Users\user\...\System.Windows.dll, PE32 8->18 dropped 20 C:\Users\user\Documents\FILERET\...\7-zip.dll, PE32+ 8->20 dropped 22 C:\Users\user\Documents\...\msvcp80.dll, PE32 8->22 dropped 24 2 other files (none is malicious) 8->24 dropped 44 Drops PE files to the document folder of the user 8->44 46 Writes to foreign memory regions 8->46 48 Tries to detect Any.run 8->48 12 CasPol.exe 16 15 8->12         started        signatures6 process7 dnsIp8 30 colpatvalidacionnuevo.xyz 181.235.3.137, 37198, 49747 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 12->30 32 194.31.98.240, 49745, 80 BURSABILTR Netherlands 12->32 34 ip-api.com 208.95.112.1, 49746, 80 TUT-ASUS United States 12->34 50 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->50 52 Tries to detect Any.run 12->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->54 56 Installs a global keyboard hook 12->56 16 conhost.exe 12->16         started        signatures9 process10
Threat name:
Win32.Downloader.GuLoader
Status:
Malicious
First seen:
2022-07-13 15:42:08 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:quasar botnet:artillery discovery downloader persistence spyware suricata trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Quasar RAT
Quasar payload
suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata: ET MALWARE Generic .bin download from Dotted Quad
Malware Config
C2 Extraction:
colpatvalidacionnuevo.xyz:37198
Unpacked files
SH256 hash:
2026f3c4f830dff6883b88e2647272a52a132f25eb42c0d423e36b3f65a94d08
MD5 hash:
4c8a880eabc0b4d462cc4b2472116ea1
SHA1 hash:
d0a27f553c0fe0e507c7df079485b601d5b592e6
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
SH256 hash:
0cfbdbb0f561f451779590ac95cf5a28757158c667c4365c2f9a6225bf2bbf6e
MD5 hash:
599faf1b8acc76554e5cfdd97d6b2c58
SHA1 hash:
5f402fb7025a75fb724fef0f4b297dd1726a6b22
SH256 hash:
fc648c1add07f55c473c2a43f68e5f3af0c6cd92bd576cffea4ff4725661322a
MD5 hash:
cbcf188696d6bd9d8ed526a3a2a862be
SHA1 hash:
3715d2de680f63537b2f8d6a7e6258da0956be4c
SH256 hash:
97cfde3665f5af9b1cde9fc4f4e27144d24ae85fed47f407f576eadc6a43649f
MD5 hash:
8aa1b34d887681430565674c6b9687b0
SHA1 hash:
43fd4ec101d09a25d3db3c3b139ad8f36972c4b1
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:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

File information


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

Comments