guloader | 034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 20:34

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General

Target

034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
Size

511KB
MD5

24d65daddfed0602d8c90b5dfa47b7bb
SHA1

c46f000d10a66687cefd4a8fee1c8b3e84afd4b9
SHA256

034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a
SHA512

09e16a15e18eb08f45f964fa271365e688507d561fc8567ce9417a54283dfb0785ef5a379456bb44cea187d7a5951521347a3e6f139560327460dfd449a6fe33
SSDEEP

12288:OjkqENMhypm0dvksi4P60gnkwNpRp9gS1S:yEmh8rRkvc61k4s

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
4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
1500	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4180 set thread context of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\misjoinder.ini	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.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	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85
PID 4180 wrote to memory of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85
PID 4180 wrote to memory of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85
PID 4180 wrote to memory of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85
PID 4180 wrote to memory of 1500	4180	034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe	85

C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
"C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe
  "C:\Users\Admin\AppData\Local\Temp\034d0ad83a1a41c3fb2be5110d68a545b2426a337006a7f34a2050a0c7a18b9a.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1500

Network

MITRE ATT&CK Enterprise v15

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

C:\Users\Admin\AppData\Local\Temp\nsi690B.tmp\System.dll

Filesize
11KB

MD5
960a5c48e25cf2bca332e74e11d825c9

SHA1
da35c6816ace5daf4c6c1d57b93b09a82ecdc876

SHA256
484f8e9f194ed9016274ef3672b2c52ed5f574fb71d3884edf3c222b758a75a2

SHA512
cc450179e2d0d56aee2ccf8163d3882978c4e9c1aa3d3a95875fe9ba9831e07ddfd377111dc67f801fa53b6f468a418f086f1de7c71e0a5b634e1ae2a67cd3da

Download Submit
memory/1500-24-0x00000000016D0000-0x0000000003F2E000-memory.dmp

Filesize
40.4MB

Download
memory/1500-25-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1500-26-0x00000000016D0000-0x0000000003F2E000-memory.dmp

Filesize
40.4MB

Download
memory/4180-20-0x0000000004B40000-0x000000000739E000-memory.dmp

Filesize
40.4MB

Download
memory/4180-21-0x0000000076E91000-0x0000000076FB1000-memory.dmp

Filesize
1.1MB

Download
memory/4180-22-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4180-23-0x0000000004B40000-0x000000000739E000-memory.dmp

Filesize
40.4MB

Download