guloader | 1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 22:00

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General

Target

1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe
Size

84KB
MD5

71239d39b96b5cdc10d1ff98af0f07d0
SHA1

b89353b7d545270833a56f81f26724510ed5471b
SHA256

1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae
SHA512

646370e996d05d759f933ff7839d46a115a9fe236fa897c7af555400085a96289cb120e7224bb0302f70dd1cb0a84c4ac7ecbdfa25760b3e9c42712cfc6663a5
SSDEEP

1536:V8ysFY6TjMuToZPp0goKKHmGvPQJRWhRDQ/R:7xuQu4n4wJRWi

Score

10^/10

guloader downloader guloader

Malware Config

Extracted

Family

guloader

https://onedrive.live.com/download?cid=10C44A5247ACCFDE&resid=10C44A5247ACCFDE%21149&authkey=AKZCgadhv8s_S8Y

xor.base64

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Guloader payload 2 IoCs

guloader

Processes:

resource	yara_rule
behavioral1/memory/2508-2-0x00000000003C0000-0x00000000003C8000-memory.dmp	family_guloader
behavioral1/memory/2508-5-0x00000000003C0000-0x00000000003C8000-memory.dmp	family_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

Processes:

1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

description ioc process

File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe 1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

pid process

2508 1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

pid process

2508 1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

pid	process
2508	1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

pid	process
2508	1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe

C:\Users\Admin\AppData\Local\Temp\1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe
"C:\Users\Admin\AppData\Local\Temp\1f29944c7410239305587dc44c89c9959d5e8da9ef878200eccd4dd71884b9ae.exe"
1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:2508

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2508-2-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/2508-3-0x0000000076D01000-0x0000000076E02000-memory.dmp

Filesize
1.0MB

Download
memory/2508-4-0x0000000076D00000-0x0000000076EA9000-memory.dmp

Filesize
1.7MB

Download
memory/2508-5-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download