guloader | d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052

General

Target

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
Size

716KB
MD5

79e6e747664d222e92b6cc8fff6ad012
SHA1

4915fc50dc5b59e8da01f981640d735960612185
SHA256

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052
SHA512

53dfd854a5b55171dfd15d824163745aa061dc66f100253dbb9f1e7d0ff26e824bd5c720bee6fbe2a932dac2f1166b24ea070a602bfe8f507269afda42aa4bbb
SSDEEP

12288:7rgjBLiIK2WVy/YqpuL9uOUqTHF3WORPvJ2ugcYEjMwcT/hXmmwMRzcLSIHMqF:70jBiIK2R/5puhuTqbFNpnVMwkXjZcWW

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

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

pid	process
4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

19 drive.google.com
20 drive.google.com

flow	ioc
19	drive.google.com
20	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exed2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

pid	process
4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
2776	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

description	pid	process	target process
PID 4824 set thread context of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.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

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exed2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

pid process

4824 d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

description	pid	process	target process
PID 4824 wrote to memory of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
PID 4824 wrote to memory of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
PID 4824 wrote to memory of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
PID 4824 wrote to memory of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
PID 4824 wrote to memory of 2776	4824	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe	d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe

C:\Users\Admin\AppData\Local\Temp\d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
"C:\Users\Admin\AppData\Local\Temp\d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Users\Admin\AppData\Local\Temp\d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe
  "C:\Users\Admin\AppData\Local\Temp\d2466a6cb196042b1584959065b5ccb4d5f3eff5687ed2f1215095ffea3ed052.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsvA0A6.tmp\System.dll

Filesize
12KB

MD5
dd87a973e01c5d9f8e0fcc81a0af7c7a

SHA1
c9206ced48d1e5bc648b1d0f54cccc18bf643a14

SHA256
7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1

SHA512
4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f

Download Submit
memory/2776-22-0x0000000077205000-0x0000000077206000-memory.dmp

Filesize
4KB

Download
memory/2776-19-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/2776-20-0x0000000001660000-0x0000000002706000-memory.dmp

Filesize
16.6MB

Download
memory/2776-21-0x00000000771E8000-0x00000000771E9000-memory.dmp

Filesize
4KB

Download
memory/2776-35-0x0000000001660000-0x0000000002706000-memory.dmp

Filesize
16.6MB

Download
memory/2776-36-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/2776-37-0x0000000077161000-0x0000000077281000-memory.dmp

Filesize
1.1MB

Download
memory/4824-15-0x0000000077161000-0x0000000077281000-memory.dmp

Filesize
1.1MB

Download
memory/4824-16-0x0000000074605000-0x0000000074606000-memory.dmp

Filesize
4KB

Download
memory/4824-17-0x00000000031B0000-0x0000000004256000-memory.dmp

Filesize
16.6MB

Download
memory/4824-18-0x00000000031B0000-0x0000000004256000-memory.dmp

Filesize
16.6MB

Download
memory/4824-14-0x00000000031B0000-0x0000000004256000-memory.dmp

Filesize
16.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads