guloader | 3d8e3c85b8910e3dbc426392456ba630c4ee3a6c0a5d93c818e0f5f80e723e5e

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 04:30

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General

Target

5445057585bd359cb8798d33c4d5f2b9.exe
Size

184KB
MD5

5445057585bd359cb8798d33c4d5f2b9
SHA1

adffbbcd0611cc7a52f8d23c71e2a0a3add19d8f
SHA256

3d8e3c85b8910e3dbc426392456ba630c4ee3a6c0a5d93c818e0f5f80e723e5e
SHA512

d8eff83da3c07d0ba19b29f0a065a599bc615a09980b2558974a159ec05f3e3b445e31a4bdb24ce71ec0f9148593af5ceb7dfa468f9c89fe4ee413db50465272
SSDEEP

1536:RBI0auxZD+WtPIRo0ErH4F//yyubFy0aF8:RPjl+WtPI9fk9fJ

Score

10^/10

guloader remcos downloader persistence rat

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

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	ieinstal.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	5445057585bd359cb8798d33c4d5f2b9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VOILEFURRO = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Advotere\\deathcupreducer.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
5084	5445057585bd359cb8798d33c4d5f2b9.exe
2420	ieinstal.exe
2420	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5084 set thread context of 2420	5084	5445057585bd359cb8798d33c4d5f2b9.exe	90

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5084	5445057585bd359cb8798d33c4d5f2b9.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5084	5445057585bd359cb8798d33c4d5f2b9.exe
2420	ieinstal.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 2420	5084	5445057585bd359cb8798d33c4d5f2b9.exe	90
PID 5084 wrote to memory of 2420	5084	5445057585bd359cb8798d33c4d5f2b9.exe	90
PID 5084 wrote to memory of 2420	5084	5445057585bd359cb8798d33c4d5f2b9.exe	90
PID 5084 wrote to memory of 2420	5084	5445057585bd359cb8798d33c4d5f2b9.exe	90

C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.exe
"C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.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:5084
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetWindowsHookEx
  PID:2420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/2420-44-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-42-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-8-0x00000000771A1000-0x00000000772C1000-memory.dmp

Filesize
1.1MB

Download
memory/2420-12-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-20-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-28-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-35-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-41-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-46-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-52-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-57-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-62-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-67-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-68-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-66-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-65-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-64-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-43-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-61-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-60-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-59-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-58-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-56-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-55-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-54-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-53-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-51-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-50-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-49-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-48-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-47-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-45-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-6-0x0000000000E60000-0x0000000000F60000-memory.dmp

Filesize
1024KB

Download
memory/2420-5-0x0000000000E60000-0x0000000000F60000-memory.dmp

Filesize
1024KB

Download
memory/2420-63-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-40-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-39-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-38-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-37-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-36-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-34-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-33-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-32-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-31-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-30-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-29-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-27-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-26-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-71-0x0000000000E60000-0x0000000000F60000-memory.dmp

Filesize
1024KB

Download
memory/2420-25-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-24-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-23-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-22-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-21-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-19-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-18-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-17-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-16-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-15-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-14-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-13-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-11-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2420-10-0x0000000000E60000-0x0000000000F60000-memory.dmp

Filesize
1024KB

Download
memory/5084-2-0x00000000021D0000-0x00000000021E9000-memory.dmp

Filesize
100KB

Download
memory/5084-4-0x00000000771A1000-0x00000000772C1000-memory.dmp

Filesize
1.1MB

Download
memory/5084-3-0x00000000771A1000-0x00000000772C1000-memory.dmp

Filesize
1.1MB

Download
memory/5084-7-0x00000000021D0000-0x00000000021E9000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads