guloader | 0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81

General

Target

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
Size

626KB
MD5

21a40091e05d06c9480da0fb7a8add87
SHA1

186ae82d5cdb969c28e8111af7ea638d98bfdc69
SHA256

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81
SHA512

e11417ff36d3dfe3c92ba560ca3bd0d75e71b005b38f54ba6e775cfecd9b1f41bbe34544b359967f8a13d96f1b93f6c2d36467ed0cc161fad6d6760c4a886f47
SSDEEP

12288:qic8iBU0BzGGCyDEWqNF2V0/gQashpX7IBy9VoF15NO7nxZ6GLKaDP:qic8GU0AGaO0/gQashpMy9VUgjf6G2a

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 1 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid process

4436 0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.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
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid process

4952 0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid	process
4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
4952	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

description	pid	process	target process
PID 4436 set thread context of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Drops file in Windows directory 4 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

description	ioc	process
File opened for modification	C:\Windows\resources\Pocherings.ini	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
File created	C:\Windows\porencephalitis.lnk	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
File opened for modification	C:\Windows\resources\0409\overkrop\nasosubnasal.ini	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
File opened for modification	C:\Windows\porencephalitis.lnk	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2368 4952 WerFault.exe 0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid	pid_target	process	target process
2368	4952	WerFault.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

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:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid	process
4952	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
4952	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

pid process

4436 0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

description	pid	process	target process
PID 4436 wrote to memory of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
PID 4436 wrote to memory of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
PID 4436 wrote to memory of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
PID 4436 wrote to memory of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
PID 4436 wrote to memory of 4952	4436	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe	0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe

C:\Users\Admin\AppData\Local\Temp\0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
"C:\Users\Admin\AppData\Local\Temp\0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.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:4436
- C:\Users\Admin\AppData\Local\Temp\0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe
  "C:\Users\Admin\AppData\Local\Temp\0d9e0293185f77ef323b8686cabcd7e7562af2899bf565ccef257d4b259c7b81.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4952
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4952 -s 1484
    3⤵
    - Program crash
    PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4952 -ip 4952
1⤵
PID:836

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\nsaE0DB.tmp\System.dll

Filesize
12KB

MD5
d968cb2b98b83c03a9f02dd9b8df97dc

SHA1
d784c9b7a92dce58a5038beb62a48ff509e166a0

SHA256
a4ec98011ef99e595912718c1a1bf1aa67bfc2192575729d42f559d01f67b95c

SHA512
2ee41dc68f329a1519a8073ece7d746c9f3bf45d8ef3b915deb376af37e26074134af5f83c8af0fe0ab227f0d1acca9f37e5ca7ae37c46c3bcc0331fe5e2b97e

Download Submit
C:\Windows\porencephalitis.lnk

Filesize
1006B

MD5
a6de6b3ada7a62086411af9a67d1ed48

SHA1
1424cb71911d3925143869646da5085d4896638a

SHA256
35b2b03b1ddade5a26580af78b67eae30ebb8825795fa57802d8f56b5ca8a27b

SHA512
d2457d69d0dd8ec67f8df8f01416c9a175502b9a212d841b3425057ca790966b36011b82995ef942f5eb78527b5728649b1ca626b774a054a593a78c13ca339d

Download Submit
memory/4436-294-0x0000000003510000-0x0000000004C4D000-memory.dmp

Filesize
23.2MB

Download
memory/4436-295-0x00000000772A1000-0x00000000773C1000-memory.dmp

Filesize
1.1MB

Download
memory/4436-296-0x0000000073F95000-0x0000000073F96000-memory.dmp

Filesize
4KB

Download
memory/4436-297-0x0000000003510000-0x0000000004C4D000-memory.dmp

Filesize
23.2MB

Download
memory/4952-300-0x0000000077328000-0x0000000077329000-memory.dmp

Filesize
4KB

Download
memory/4952-299-0x0000000001660000-0x0000000002D9D000-memory.dmp

Filesize
23.2MB

Download
memory/4952-298-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4952-301-0x0000000077345000-0x0000000077346000-memory.dmp

Filesize
4KB

Download
memory/4952-314-0x0000000001660000-0x0000000002D9D000-memory.dmp

Filesize
23.2MB

Download
memory/4952-315-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4952-316-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4952-317-0x00000000772A1000-0x00000000773C1000-memory.dmp

Filesize
1.1MB

Download
memory/4952-318-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4952-319-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4952-320-0x0000000001660000-0x0000000002D9D000-memory.dmp

Filesize
23.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads