guloader | 6147decc439b9d258f5b19f77dfa47ea441e681c49e0b699533eea18104f4092

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
11/07/2024, 22:36

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General

Target

3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe
Size

104KB
MD5

3afbff763b9b7c1d7ee7c7d99ea33bb2
SHA1

12b5d5a2d7d19e3efcd840b173f681acb5b1c497
SHA256

6147decc439b9d258f5b19f77dfa47ea441e681c49e0b699533eea18104f4092
SHA512

13452625c153e68da245cc1712a37b28b1903cef4d70057bc6afca2be2fe2f94b28d97c5dd468b35c6f5f64d409a2349972ca40bafcdad8222d2209454716b92
SSDEEP

1536:PEv/F/F6MF33S7/h/Jk6P612mS6s+Bw+SFg+T2/:k3BSLk1cmSnT2

Score

10^/10

guloader downloader

Malware Config

Extracted

Family

guloader

http://mtspsmjeli.sch.id/cl/VK_Remcos%20v2_AxaGIU151.bin

xor.base64

Signatures

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

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe
1176	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 1176	2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe	86

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1176	2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe	86
PID 2272 wrote to memory of 1176	2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe	86
PID 2272 wrote to memory of 1176	2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe	86
PID 2272 wrote to memory of 1176	2272	3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe"
1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3afbff763b9b7c1d7ee7c7d99ea33bb2_JaffaCakes118.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:1176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1176-4-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/1176-7-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1176-8-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/1176-10-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2272-2-0x00000000020B0000-0x00000000020BC000-memory.dmp

Filesize
48KB

Download
memory/2272-3-0x0000000077341000-0x0000000077461000-memory.dmp

Filesize
1.1MB

Download
memory/2272-6-0x00000000020B0000-0x00000000020BC000-memory.dmp

Filesize
48KB

Download