guloader | 211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a

Analysis

max time kernel
151s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 13:46

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General

Target

211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe
Size

1.2MB
MD5

e0e523c11c9633506225aa2b1f87c255
SHA1

d67f9445a32f2c8c4057b69b929b6b9a63ec0673
SHA256

211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a
SHA512

4cc2bfea3fcf4bd371fb8ff5155a41e15fb55a5e2311296fc72ad128c03ba4dd5c4da32744a9f01c62852e8e3cb9d77394b75be3f65294bf77d66cc6a128bc98
SSDEEP

24576:8CVIPeJg4nk95ACjKC4onl8Q3wlRjMPybTJmU:rmPb4nIACjKCxl13ojMPybl

Score

10^/10

guloader downloader

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	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe

Loads dropped DLL 1 IoCs

pid	Process
184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe
2644	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 184 set thread context of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93

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

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 184 wrote to memory of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93
PID 184 wrote to memory of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93
PID 184 wrote to memory of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93
PID 184 wrote to memory of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93
PID 184 wrote to memory of 2644	184	211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe	93

C:\Users\Admin\AppData\Local\Temp\211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe
"C:\Users\Admin\AppData\Local\Temp\211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:184
- C:\Users\Admin\AppData\Local\Temp\211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe
  "C:\Users\Admin\AppData\Local\Temp\211f2511979570b429ef692921847c1b4ac9b34c06fede21115fb4db214ea82a.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2644

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nseEAED.tmp\System.dll

Filesize
11KB

MD5
b0c77267f13b2f87c084fd86ef51ccfc

SHA1
f7543f9e9b4f04386dfbf33c38cbed1bf205afb3

SHA256
a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77

SHA512
f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e

Download Submit
memory/184-18-0x0000000004210000-0x00000000058AC000-memory.dmp

Filesize
22.6MB

Download
memory/184-19-0x0000000004210000-0x00000000058AC000-memory.dmp

Filesize
22.6MB

Download
memory/184-20-0x0000000077181000-0x00000000772A1000-memory.dmp

Filesize
1.1MB

Download
memory/184-21-0x0000000077181000-0x00000000772A1000-memory.dmp

Filesize
1.1MB

Download
memory/184-22-0x0000000073FE0000-0x0000000073FE6000-memory.dmp

Filesize
24KB

Download
memory/2644-23-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/2644-24-0x0000000001660000-0x0000000002CFC000-memory.dmp

Filesize
22.6MB

Download
memory/2644-25-0x0000000001660000-0x0000000002CFC000-memory.dmp

Filesize
22.6MB

Download
memory/2644-26-0x0000000077208000-0x0000000077209000-memory.dmp

Filesize
4KB

Download
memory/2644-27-0x0000000077225000-0x0000000077226000-memory.dmp

Filesize
4KB

Download
memory/2644-37-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/2644-38-0x0000000077181000-0x00000000772A1000-memory.dmp

Filesize
1.1MB

Download