guloader | 0ab6668c4bc57f654f1b09af524dd2313ecf7900f347e0c0b2d5b9f8e07eb6d6

Analysis

max time kernel
17s
max time network
115s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/09/2026, 18:12

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General

Target
RFQ-945730101-B0000005023019.exe
Size 372KB
Sample260917-wtak2shd35
SHA256 0ab6668c4bc57f654f1b09af524dd2313ecf7900f347e0c0b2d5b9f8e07eb6d6
MD5 a181890ed3921d788821c0a60a209238
SHA1 a1bc539d996f64dc79cb8f72e4a1f0cc201b986e
SHA512 f2a62a8f1881a46e2b8a0857ddab276ea1ee76e22519b7fb0c7d8cd5726aea7ddee342ac9fa4c7285d0d9d48cfd66fa0c10db1738f29fcf5cc83ccd48768348f
SSDEEP 6144:y4t6LsKwbbbbPbbbbVbbb7bbH+bobRe0bHjkF4qHVMe2SuoWtfYfR1jlKM96fvXd:ykKwbbbbPbbbbVbbb7bbebobRe0bHjku
TLSH
T1F384120877A1D0A7E26646B1897FE397FA35FD090E60520F23203E9F7C723919D5A369
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery downloader guloader

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
3284	RFQ-945730101-B0000005023019.exe
3284	RFQ-945730101-B0000005023019.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Synanthrose\Trigonodont228\fasanhnerne.ini	RFQ-945730101-B0000005023019.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Styreren55\Versificgar.Stj	RFQ-945730101-B0000005023019.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	RFQ-945730101-B0000005023019.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-945730101-B0000005023019.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-945730101-B0000005023019.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3284

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsn7C3C.tmp\System.dll
Size 11KB
SHA256 bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 17ed1c86bd67e78ade4712be48a7d2bd
SHA1 1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA512 0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
SSDEEP 192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+
TLSH
T1E3325C12135081F3E4918138C86B3A276B6A15029BF98E57DFD39546BE31BE3BD7D603
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3284-14-0x0000000006090000-0x0000000006B4E000-memory.dmp

Download

memory/3284-15-0x0000000006090000-0x0000000006B4E000-memory.dmp