guloader | b3cc4e1f09aa77a31e7071f2a505bfe5f13f9ec3cb73997b0d4a5ac36fc710fa

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 14:12

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General

Target

#QTN-20-971-JA04Q7..exe
Size

76KB
MD5

be4aafc0bb1b1108fd43c52d23f7bc82
SHA1

058ef7378000cd15d93e3e3dabec76a74e50d1f7
SHA256

84a52d8714b6e93f7361b6884e2c292d2768d583e2f01cb3eda25d7bda701eff
SHA512

20a649b338c36d2baf586efddfb9c416818bec38de25c4f8e7f567fecaa6211cedbcd2e045be99ede6e3e2dd188115e7f58722519ea74478ab453a69e1beb647
SSDEEP

1536:E4BUVEpEdE+oGJlpr3J5Z4Q8NrHUVEpEdE+oGJ:GuWd/oGljJ5CQuQuWd/oG

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://serviciotecnicoenperu.com/UGOPOUNDS%20FILE%20LOKI_encrypted_982F15F.bin

xor.base64

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1392	#QTN-20-971-JA04Q7..exe
2696	#QTN-20-971-JA04Q7..exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1392 set thread context of 2696	1392	#QTN-20-971-JA04Q7..exe	81

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	#QTN-20-971-JA04Q7..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	#QTN-20-971-JA04Q7..exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1392	#QTN-20-971-JA04Q7..exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1392	#QTN-20-971-JA04Q7..exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 2696	1392	#QTN-20-971-JA04Q7..exe	81
PID 1392 wrote to memory of 2696	1392	#QTN-20-971-JA04Q7..exe	81
PID 1392 wrote to memory of 2696	1392	#QTN-20-971-JA04Q7..exe	81
PID 1392 wrote to memory of 2696	1392	#QTN-20-971-JA04Q7..exe	81

C:\Users\Admin\AppData\Local\Temp\#QTN-20-971-JA04Q7..exe
"C:\Users\Admin\AppData\Local\Temp\#QTN-20-971-JA04Q7..exe"
1⤵
- 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:1392
- C:\Users\Admin\AppData\Local\Temp\#QTN-20-971-JA04Q7..exe
  "C:\Users\Admin\AppData\Local\Temp\#QTN-20-971-JA04Q7..exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1392-2-0x0000000000740000-0x0000000000748000-memory.dmp

Filesize
32KB

Download
memory/1392-3-0x0000000077D81000-0x0000000077EA1000-memory.dmp

Filesize
1.1MB

Download
memory/1392-6-0x0000000000740000-0x0000000000748000-memory.dmp

Filesize
32KB

Download
memory/1392-7-0x0000000077D81000-0x0000000077EA1000-memory.dmp

Filesize
1.1MB

Download
memory/2696-4-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2696-9-0x0000000077D81000-0x0000000077EA1000-memory.dmp

Filesize
1.1MB

Download
memory/2696-8-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download