guloader | e9eaecb452ac6a633d38f5d5e1872df95e53d3273d72e63425d9a40408c47fff

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:50

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General

Target

cce33f881b5d4fc308e2cfdaf6e196c8.exe
Size

320KB
MD5

cce33f881b5d4fc308e2cfdaf6e196c8
SHA1

409e145727c4b08e285a5f56c1ea4d787e0b86f1
SHA256

e9eaecb452ac6a633d38f5d5e1872df95e53d3273d72e63425d9a40408c47fff
SHA512

b3b68b1b5222e9aed2b7f1d3781074397f8bf97b5f2eb2d32ddc10047715e18da3fb8b82d57116f459fe9171943c8b444351257792e46af57705defb15fa32b8
SSDEEP

3072:QRpbB19av4ITa1YncX6JIeZc2tQAp3dC2Zj/AZXk4jX4tFLk86gP9pWe0:Q7IMydrZc2yA7ZjwX8tW

Score

10^/10

guloader downloader persistence

Malware Config

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	ieinstal.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	cce33f881b5d4fc308e2cfdaf6e196c8.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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Scriptoria = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Spinier1\\Serpentinevejenes.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
560	cce33f881b5d4fc308e2cfdaf6e196c8.exe
2552	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 560 set thread context of 2552	560	cce33f881b5d4fc308e2cfdaf6e196c8.exe	96

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
560	cce33f881b5d4fc308e2cfdaf6e196c8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
560	cce33f881b5d4fc308e2cfdaf6e196c8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 560 wrote to memory of 2552	560	cce33f881b5d4fc308e2cfdaf6e196c8.exe	96
PID 560 wrote to memory of 2552	560	cce33f881b5d4fc308e2cfdaf6e196c8.exe	96
PID 560 wrote to memory of 2552	560	cce33f881b5d4fc308e2cfdaf6e196c8.exe	96
PID 560 wrote to memory of 2552	560	cce33f881b5d4fc308e2cfdaf6e196c8.exe	96

C:\Users\Admin\AppData\Local\Temp\cce33f881b5d4fc308e2cfdaf6e196c8.exe
"C:\Users\Admin\AppData\Local\Temp\cce33f881b5d4fc308e2cfdaf6e196c8.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:560
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\cce33f881b5d4fc308e2cfdaf6e196c8.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2552

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/560-2-0x0000000002210000-0x0000000002222000-memory.dmp

Filesize
72KB

Download
memory/560-5-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/560-3-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/560-7-0x0000000002210000-0x0000000002222000-memory.dmp

Filesize
72KB

Download
memory/560-10-0x0000000002210000-0x0000000002222000-memory.dmp

Filesize
72KB

Download
memory/2552-6-0x0000000000E00000-0x0000000000F00000-memory.dmp

Filesize
1024KB

Download
memory/2552-4-0x0000000000E00000-0x0000000000F00000-memory.dmp

Filesize
1024KB

Download
memory/2552-9-0x0000000000E00000-0x0000000000F00000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads