guloader | 7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa

Analysis

max time kernel
149s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/08/2026, 23:26

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General

Target
7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
Size 297KB
Sample260824-3ezd7avdnb
SHA256 7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa
MD5 f8b1a6f2a7bab6ffdef1e78a48e7a7fa
SHA1 baa1a354622fde5fa03e28bc3eb4f15433a96e5d
SHA512 d6b5ebb90f8ca94506af568b9d33c16abcae43840e7e5bce3e40078af9a5aad7a49470ac1a502e3376536e7bd74a0efaacf1555ef00b5ac2a07ed1210e830505
SSDEEP 6144:+8dWR9kvIuX9RdmKeG7oguuK9kMu9nliHxcUG3ARyQfVKrFj1L1Or2YzKN3:nMRavIsoKpoFJu9g43ARy0VKrROrvo3
TLSH
T13E54131271A1CCF7C3A82372893A6B6C4EFACD492180730BBBD47F0AAD737515926657
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
552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
3336	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\sangteksten\rippe.gif	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.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 2 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	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 552 wrote to memory of 1508	552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe	89
PID 552 wrote to memory of 3336	552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe	90
PID 552 wrote to memory of 3336	552	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe	90
PID 3336 wrote to memory of 5952	3336	7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe	91

C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
"C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:552
- C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
  "C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe"
  2⤵
  PID:1508
- C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
  "C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3336
- - C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe
    "C:\Users\Admin\AppData\Local\Temp\7101c5945c026bef41d2cbf5bb5865976af92b56d326336b89523c385680f2aa.exe"
    3⤵
    PID:5952

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

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsa83CD.tmp\System.dll
Size 11KB
SHA256 904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8
MD5 55a26d7800446f1373056064c64c3ce8
SHA1 80256857e9a0a9c8897923b717f3435295a76002
SHA512 04b8ab7a85c26f188c0a06f524488d6f2ac2884bf107c860c82e94ae12c3859f825133d78338fd2b594dfc48f7dc9888ae76fee786c6252a5c77c88755128a5b
SSDEEP 192:MPtkumJX7zBE2kGwfy9S9VkPsFQ1Mx1c:97O2k5q9wA1Mxa
TLSH
T1F2324C15031086F3E1D2853D682B39AB2FB969118AF04E438FB35952EE347C7AD79352
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/552-17-0x0000000005320000-0x0000000006787000-memory.dmp

Download

memory/552-18-0x0000000010004000-0x0000000010005000-memory.dmp

Download

memory/3336-19-0x0000000001AB0000-0x0000000002F17000-memory.dmp

Download

memory/3336-20-0x00000000007C0000-0x0000000001AA6000-memory.dmp

Download

memory/3336-21-0x0000000001AB0000-0x0000000002F17000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads