MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a618fcf60b8d1a87685c6d6f812d5fa62bbd94fd7966244365d3a5c7c174cbff. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: a618fcf60b8d1a87685c6d6f812d5fa62bbd94fd7966244365d3a5c7c174cbff
SHA3-384 hash: 934a9bf63895891f063937c4b99e48eeca8669b61a4463d437061c4c88206d521c25a0214873841db2fc81c126732c58
SHA1 hash: db9ed3ebae6706970c275e62853e089b7701df4c
MD5 hash: 4bf3697cc2dc73c5a4f5e9d66444d87d
humanhash: pip-india-may-golf
File name:4bf3697cc2dc73c5a4f5e9d66444d87d.exe
Download: download sample
Signature GuLoader
File size:306'002 bytes
First seen:2023-08-03 07:59:34 UTC
Last seen:2023-08-03 11:54:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e160ef8e55bb9d162da4e266afd9eef3 (140 x GuLoader, 33 x RemcosRAT, 17 x AgentTesla)
ssdeep 6144:qMMYNXqBB+BiXrT5TQy0NFOjz/rAyaN0/StGWf+zHLscvMlxHu/9KSMyC5i9ZjCH:+n+B+rT5TQ1AsyG0/tzrscETu1K/X/+K
TLSH T1A35412656BF4C4F7E6531A720E737723F3F9A210913A670FAFA4EFAC2601641966B041
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 9088a2f178b05e2c (6 x GuLoader, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
2
# of downloads :
287
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CIF Order 083234.xls
Verdict:
Malicious activity
Analysis date:
2023-08-03 07:18:52 UTC
Tags:
opendir exploit cve-2017-11882 loader

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

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %temp% subdirectories
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
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, SmokeLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs a global keyboard hook
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1284952 Sample: Hc9QZCcNQx.exe Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 68 cletonmy.com 2->68 70 alpatrik.com 2->70 72 3 other IPs or domains 2->72 84 Snort IDS alert for network traffic 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Found malware configuration 2->88 90 8 other signatures 2->90 10 Hc9QZCcNQx.exe 7 22 2->10         started        14 abhbwtv 17 2->14         started        16 abhbwtv 2->16         started        signatures3 process4 file5 60 C:\Users\user\blindeskriften\medkmpe.ken, DOS 10->60 dropped 62 C:\Users\user\AppData\Local\...\System.dll, PE32 10->62 dropped 118 Tries to detect Any.run 10->118 120 Opens the same file many times (likely Sandbox evasion) 10->120 18 Hc9QZCcNQx.exe 6 10->18         started        64 C:\Users\user\AppData\Local\...\System.dll, PE32 14->64 dropped 122 Multi AV Scanner detection for dropped file 14->122 22 abhbwtv 14->22         started        66 C:\Users\user\AppData\Local\...\System.dll, PE32 16->66 dropped signatures6 process7 dnsIp8 74 198.46.176.189, 49938, 49970, 80 AS-COLOCROSSINGUS United States 18->74 92 Tries to detect Any.run 18->92 94 Maps a DLL or memory area into another process 18->94 96 Checks if the current machine is a virtual machine (disk enumeration) 18->96 24 explorer.exe 12 7 18->24 injected 98 Creates a thread in another existing process (thread injection) 22->98 signatures9 process10 dnsIp11 78 alpatrik.com 141.8.193.5, 49946, 49947, 49948 SPRINTHOSTRU Russian Federation 24->78 80 cletonmy.com 172.105.103.207, 49945, 80 LINODE-APLinodeLLCUS United States 24->80 54 C:\Users\user\AppData\Roaming\abhbwtv, PE32 24->54 dropped 56 C:\Users\user\AppData\Local\Temp\64E3.exe, PE32 24->56 dropped 58 C:\Users\user\...\abhbwtv:Zone.Identifier, ASCII 24->58 dropped 110 System process connects to network (likely due to code injection or exploit) 24->110 112 Benign windows process drops PE files 24->112 114 Injects code into the Windows Explorer (explorer.exe) 24->114 116 3 other signatures 24->116 29 64E3.exe 15 3 24->29         started        33 WinHlp.exe 24->33         started        35 WinHlp.exe 24->35         started        37 6 other processes 24->37 file12 signatures13 process14 dnsIp15 82 files.catbox.moe 108.181.20.35, 443, 49950, 49957 ASN852CA Canada 29->82 124 Antivirus detection for dropped file 29->124 126 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 29->126 128 Machine Learning detection for dropped file 29->128 39 64E3.exe 29->39         started        44 64E3.exe 29->44         started        130 Injects a PE file into a foreign processes 33->130 46 WinHlp.exe 33->46         started        48 WinHlp.exe 35->48         started        132 System process connects to network (likely due to code injection or exploit) 37->132 134 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->134 136 Tries to steal Mail credentials (via file / registry access) 37->136 138 Tries to harvest and steal browser information (history, passwords, etc) 37->138 50 WerFault.exe 37->50         started        signatures16 process17 dnsIp18 76 api4.ipify.org 173.231.16.76, 443, 49956, 49964 WEBNXUS United States 39->76 52 C:\Users\user\AppData\Roaming\...\WinHlp.exe, PE32 39->52 dropped 100 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 39->100 102 Tries to steal Mail credentials (via file / registry access) 39->102 104 Hides that the sample has been downloaded from the Internet (zone.identifier) 39->104 106 Tries to harvest and steal browser information (history, passwords, etc) 48->106 108 Installs a global keyboard hook 48->108 file19 signatures20
Threat name:
Win32.Trojan.Guloader
Status:
Suspicious
First seen:
2023-08-03 07:40:45 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
cloudeye
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Loads dropped DLL
Unpacked files
SH256 hash:
44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
MD5 hash:
883eff06ac96966270731e4e22817e11
SHA1 hash:
523c87c98236cbc04430e87ec19b977595092ac8
SH256 hash:
a618fcf60b8d1a87685c6d6f812d5fa62bbd94fd7966244365d3a5c7c174cbff
MD5 hash:
4bf3697cc2dc73c5a4f5e9d66444d87d
SHA1 hash:
db9ed3ebae6706970c275e62853e089b7701df4c
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

GuLoader

Executable exe a618fcf60b8d1a87685c6d6f812d5fa62bbd94fd7966244365d3a5c7c174cbff

(this sample)

  
Delivery method
Distributed via web download

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