guloader | 3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a

General

Target

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
Size

136KB
MD5

a33dae9378ae60792b7a379d35c3d72d
SHA1

33bd58b106f79dbafc21eea039ede3f3c8ae5bfe
SHA256

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a
SHA512

a1ca4811a4c3f77cc264d5282775f9d38029320e4b2eabbce6b373d81f1ceb554a0f4a4bb6eda9675c78a036acde9ad381ea201b618a0f1d44a3ba9ca567ab66
SSDEEP

1536:jSMJImKSOog+MxVnWzC5sWgzb7W/MEA6Jm2taMMco3vu:ll1OogjVnQCia/lAYViu

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

pid	Process
2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
3092	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

description	pid	Process	procid_target
PID 2672 set thread context of 3092	2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe	94

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

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

pid	Process
2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

pid	Process
2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe

description	pid	Process	procid_target
PID 2672 wrote to memory of 3092	2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe	94
PID 2672 wrote to memory of 3092	2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe	94
PID 2672 wrote to memory of 3092	2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe	94
PID 2672 wrote to memory of 3092	2672	3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe	94

C:\Users\Admin\AppData\Local\Temp\3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
"C:\Users\Admin\AppData\Local\Temp\3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe"
1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe
  "C:\Users\Admin\AppData\Local\Temp\3d3752119fed970cc7e132848158f6193e8ce7f9e0a6c23f50b56c002d57de3a.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:3092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2672-2-0x0000000002AC0000-0x0000000002AD7000-memory.dmp

Filesize
92KB

Download
memory/2672-3-0x0000000077281000-0x00000000773A1000-memory.dmp

Filesize
1.1MB

Download
memory/2672-4-0x0000000002AC0000-0x0000000002AD7000-memory.dmp

Filesize
92KB

Download
memory/2672-7-0x0000000002AC0000-0x0000000002AD7000-memory.dmp

Filesize
92KB

Download
memory/3092-5-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/3092-8-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3092-9-0x0000000077281000-0x00000000773A1000-memory.dmp

Filesize
1.1MB

Download
memory/3092-10-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3092-17-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads