guloader | f043b2f3b8dcfa78d6354e6b46e37facf7ea340c2a729e7215065fb86d47b935

Analysis

max time kernel
93s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 09:26

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General

Target

SKMBT 11021882377 Ref 19072022.exe
Size

620KB
MD5

34f9d4691898da41794bdaa6f6f59dde
SHA1

3bf8ff97eef6b32d1f31dd44bf0d5e10295e7bfd
SHA256

fd976513c52e2bc49687596d2a2515b04835adad2be24c8b6a1d6477aafa0385
SHA512

d26e73f258d0f83641664cfdea15b5607b290a13e34a82faa1c6d850bf869c1a6eb19b0907096a1e63339723be6c34b78e96964aa6810f54e4ead07b39565acc
SSDEEP

12288:JQ1wsl0r73yETBYodtmjoR57BXJeJdpRa24E0gMBcD26cmQLkvtjqJp:JQ1wsM7TuOtJ5x07RqGD26cjsjWp

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 2 IoCs

pid	Process
1376	SKMBT 11021882377 Ref 19072022.exe
1376	SKMBT 11021882377 Ref 19072022.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\Stearins99.ini	SKMBT 11021882377 Ref 19072022.exe
File opened for modification	C:\Windows\Stikkent\Ballyhooer\Udkantsomraadernes.ini	SKMBT 11021882377 Ref 19072022.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SKMBT 11021882377 Ref 19072022.exe

C:\Users\Admin\AppData\Local\Temp\SKMBT 11021882377 Ref 19072022.exe
"C:\Users\Admin\AppData\Local\Temp\SKMBT 11021882377 Ref 19072022.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsxA6C1.tmp\Math.dll

Filesize
66KB

MD5
70ba99745542354a2efcb1c2f167b62b

SHA1
8b18bc8d3e6e52222baef7ab7ab125436ef5c966

SHA256
711427242bff919c78fbba2b298b5d5898f75d73f1d7f4c4eb22badf525864a5

SHA512
e3504a8d8d2b8793078f6a1f6297fb4c017eaee58360882ea063ab717d11841f2effcec1ba6fada449d1cc491dea35c9a9512237fcdfaf6b55f70f95e9a4d085

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsxA6C1.tmp\System.dll

Filesize
12KB

MD5
792b6f86e296d3904285b2bf67ccd7e0

SHA1
966b16f84697552747e0ddd19a4ba8ab5083af31

SHA256
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917

SHA512
97edc3410b88ca31abc0af0324258d2b59127047810947d0fb5e7e12957db34d206ffd70a0456add3a26b0546643ff0234124b08423c2c9ffe9bdec6eb210f2c

Download Submit
memory/1376-22-0x0000000003370000-0x0000000003570000-memory.dmp

Filesize
2.0MB

Download
memory/1376-23-0x0000000003370000-0x0000000003570000-memory.dmp

Filesize
2.0MB

Download