MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c3a1e3e128a54d44e9cc9d1e5d1e1628b7c20200aec86d0c06cb3fd719ec34f8. 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
GuLoader
Vendor detections: 9
| SHA256 hash: | c3a1e3e128a54d44e9cc9d1e5d1e1628b7c20200aec86d0c06cb3fd719ec34f8 |
|---|---|
| SHA3-384 hash: | 73226a6ac5ea33b27914a5a750645ba69f357de2447b0b2896cc38f6f7d8891c71d8437233806c1f93e01bf24a5cfba7 |
| SHA1 hash: | b352e6611aa8d32f6820bca364e8acdcab7d096f |
| MD5 hash: | 76780a6fde5700d74fe187bbf2064e65 |
| humanhash: | two-tennessee-kentucky-burger |
| File name: | SecuriteInfo.com.Gen.Variant.Nemesis.9233.9594.12699 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 980'770 bytes |
| First seen: | 2022-07-21 22:37:32 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT) |
| ssdeep | 24576:6O1He6jMQvSAGkRBRDl0AYOgHSIXCgjXcOCVX92:19jMmfh0bOg5xX3iQ |
| Threatray | 16'023 similar samples on MalwareBazaar |
| TLSH | T1EE2502117504D093FA28077699BBC67617AA7E9BBC444A9F3348BB8F31F2B05901BE1D |
| 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) |
| File icon (PE): |  |
| dhash icon | 068e8cbcb9189858 (7 x GuLoader, 1 x QuasarRAT) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
374
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
buer nemesis overlay packed quasar 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.
Verdict:
Malicious
Result
Threat name:
GuLoader, Quasar
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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)
Yara detected GuLoader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Nemesis
Status:
Malicious
First seen:
2022-07-21 21:39:46 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
11 of 41 (26.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 16'013 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:guloader family:quasar botnet:artillery 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
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:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
SH256 hash:
c3a1e3e128a54d44e9cc9d1e5d1e1628b7c20200aec86d0c06cb3fd719ec34f8
MD5 hash:
76780a6fde5700d74fe187bbf2064e65
SHA1 hash:
b352e6611aa8d32f6820bca364e8acdcab7d096f
Malware family:
xRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
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.
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