guloader | 2e97f4d6bf16c0c918f48301129830bf11639ac0090c6eb937b126345fcc2185

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
08/08/2023, 14:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f9523a569eaa47e6ce6dc10c9b07117b.exe
Size

476KB
MD5

f9523a569eaa47e6ce6dc10c9b07117b
SHA1

01859c3360b613e1d8663b8edb702bea32ef65cc
SHA256

2e97f4d6bf16c0c918f48301129830bf11639ac0090c6eb937b126345fcc2185
SHA512

453345710c0cb4f047e05f4b4af112866b9355f885b3d257c83cd75ed4943050d90a7c85b3d186bf81860a2e43d0ebde5b8cbcb7f315d19aee11b81484a9311b
SSDEEP

6144:AmOPUVI5v8AiOEUi4+9Ret/+qw0iTOMeH/ThI3E8pEu77jKsU4kyvzvDlMh/BlUn:n+8dOluU/+qw0XBb4vvzTks5Mh7wo+

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 1 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	f9523a569eaa47e6ce6dc10c9b07117b.exe

Loads dropped DLL 2 IoCs

pid	Process
2088	f9523a569eaa47e6ce6dc10c9b07117b.exe
2088	f9523a569eaa47e6ce6dc10c9b07117b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2088	f9523a569eaa47e6ce6dc10c9b07117b.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1588	2088	WerFault.exe	82

C:\Users\Admin\AppData\Local\Temp\f9523a569eaa47e6ce6dc10c9b07117b.exe
"C:\Users\Admin\AppData\Local\Temp\f9523a569eaa47e6ce6dc10c9b07117b.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 1076
  2⤵
  - Program crash
  PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2088 -ip 2088
1⤵
PID:4732

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsl7AEE.tmp\System.dll

Filesize
11KB

MD5
9625d5b1754bc4ff29281d415d27a0fd

SHA1
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

SHA256
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

SHA512
dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7AEE.tmp\System.dll

Filesize
11KB

MD5
9625d5b1754bc4ff29281d415d27a0fd

SHA1
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

SHA256
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

SHA512
dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7AEE.tmp\System.dll

Filesize
11KB

MD5
9625d5b1754bc4ff29281d415d27a0fd

SHA1
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

SHA256
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

SHA512
dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

Download Submit
memory/2088-145-0x00000000032A0000-0x00000000058C6000-memory.dmp

Filesize
38.1MB

Download
memory/2088-146-0x00000000032A0000-0x00000000058C6000-memory.dmp

Filesize
38.1MB

Download
memory/2088-147-0x0000000077C81000-0x0000000077DA1000-memory.dmp

Filesize
1.1MB

Download
memory/2088-148-0x00000000032A0000-0x00000000058C6000-memory.dmp

Filesize
38.1MB

Download