gcleaner | e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04

General

Target

e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
Size

275KB
MD5

384651495c8919b75a6c25482f1ea43f
SHA1

d9cdebb9ceb4ed73c14f4cfba4f2e034f351fd2e
SHA256

e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04
SHA512

ffe0e414b3cca1d35405f9aa7bfe50e0145a1d5b490aba39d18f602b2bc063be160b2927325c486a7c2e031c4875561a69cc6f12e4b899afc63fe0eb66468d43
SSDEEP

6144:oJzN04wtrYIvpPomtCNb0U61tjzcLPVjM2wtlz:EN07trYmHUx56PjzcLd42wz

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

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

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
5104	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
3536	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
1340	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
3240	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
3952	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
4036	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
2608	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
2188	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
4856	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
3568	4664	WerFault.exe	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3452 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3452 taskkill.exe

pid	process
3452	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3452	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.execmd.exe

description	pid	process	target process
PID 4664 wrote to memory of 2300	4664	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe	cmd.exe
PID 4664 wrote to memory of 2300	4664	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe	cmd.exe
PID 4664 wrote to memory of 2300	4664	e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe	cmd.exe
PID 2300 wrote to memory of 3452	2300	cmd.exe	taskkill.exe
PID 2300 wrote to memory of 3452	2300	cmd.exe	taskkill.exe
PID 2300 wrote to memory of 3452	2300	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe
"C:\Users\Admin\AppData\Local\Temp\e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 488
2⤵
- Program crash
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 368
2⤵
- Program crash
PID:3536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 780
2⤵
- Program crash
PID:1340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 800
2⤵
- Program crash
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 800
2⤵
- Program crash
PID:3952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 780
2⤵
- Program crash
PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 984
2⤵
- Program crash
PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1088
2⤵
- Program crash
PID:2188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1436
2⤵
- Program crash
PID:4856

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "e2bc38359ff9556921e3d8be0c073eee5bd1fc26d326e860c038f15f5a53dc04.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 1444
2⤵
- Program crash
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4664 -ip 4664
1⤵
PID:3876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4664 -ip 4664
1⤵
PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4664 -ip 4664
1⤵
PID:1088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4664 -ip 4664
1⤵
PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4664 -ip 4664
1⤵
PID:2560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4664 -ip 4664
1⤵
PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4664 -ip 4664
1⤵
PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4664 -ip 4664
1⤵
PID:3164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4664 -ip 4664
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4664 -ip 4664
1⤵
PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4664-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4664-1-0x0000000002FE0000-0x00000000030E0000-memory.dmp

Filesize
1024KB

Download
memory/4664-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

Filesize
240KB

Download
memory/4664-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4664-6-0x0000000000400000-0x0000000002CA3000-memory.dmp

Filesize
40.6MB

Download

Analysis

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