gcleaner | 6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b

Analysis

max time kernel
91s
max time network
98s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
22-06-2024 11:42

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General

Target

6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe
Size

333KB
MD5

3826dc5b5c45a28f226f43f21a42eb1d
SHA1

e9d96a1d123f16b819957e6950876576f771958a
SHA256

6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b
SHA512

544f487b0e77416aea326de1672cd89de32083ded70ab3a63b06644fa1aa9ce02758c01264af836d2a1925eed5aa640f2e0bc8ff8a9512a9907fbcbabadd39ce
SSDEEP

6144:jV8GBJnKdQ/2W56ipeS/If69FBXqNAfi4gPoKVKF23M:jV8GBJnp96i7/If697XQAfinR3

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

185.172.128.90

5.42.64.56

185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3932 2924 WerFault.exe 6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4876 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4876 taskkill.exe

pid	pid_target	process	target process
3932	2924	WerFault.exe	6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe

pid	process
4876	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4876	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.execmd.exe

description	pid	process	target process
PID 2924 wrote to memory of 3224	2924	6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe	cmd.exe
PID 2924 wrote to memory of 3224	2924	6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe	cmd.exe
PID 2924 wrote to memory of 3224	2924	6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe	cmd.exe
PID 3224 wrote to memory of 4876	3224	cmd.exe	taskkill.exe
PID 3224 wrote to memory of 4876	3224	cmd.exe	taskkill.exe
PID 3224 wrote to memory of 4876	3224	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe
"C:\Users\Admin\AppData\Local\Temp\6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3224

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "6ed8b41c0da5121fa6783ad4b849f85781ed0be8376b4d142f1f3bd2f5f8f56b.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 1384
2⤵
- Program crash
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2924 -ip 2924
1⤵
PID:4892

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\QF81BTGY\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2924-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/2924-2-0x0000000002160000-0x000000000219C000-memory.dmp

Filesize
240KB

Download
memory/2924-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2924-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2924-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2924-22-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/2924-23-0x0000000002160000-0x000000000219C000-memory.dmp

Filesize
240KB

Download
memory/2924-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2924-34-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2924-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download