gcleaner | d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d

General

Target

d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
Size

401KB
MD5

93494bc979518b3724068343177a3c5c
SHA1

4a1c6c56a3d513f2bcb0703ff8cb5cab15252ba4
SHA256

d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d
SHA512

239eb7c6080d30b236052713d0becc9564ebb50ff077da7f7e2e3055767205a7357941ecfc799e0c1b2701bffde4e20cadeb2b96709427f437816bdb14475cda
SSDEEP

6144:957L1kDkfvuOAL8I4l6qe2H95uhopWtiXso4kxfb:99Rvuht0QR2rXLd

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
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 10 IoCs

Processes:

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

pid	pid_target	process	target process
3780	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
4124	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
1780	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
1864	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
2808	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
1212	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
476	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
4948	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
2116	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
3780	1072	WerFault.exe	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

952 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 952 taskkill.exe

pid	process
952	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	952	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.execmd.exe

description	pid	process	target process
PID 1072 wrote to memory of 2400	1072	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe	cmd.exe
PID 1072 wrote to memory of 2400	1072	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe	cmd.exe
PID 1072 wrote to memory of 2400	1072	d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe	cmd.exe
PID 2400 wrote to memory of 952	2400	cmd.exe	taskkill.exe
PID 2400 wrote to memory of 952	2400	cmd.exe	taskkill.exe
PID 2400 wrote to memory of 952	2400	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe
"C:\Users\Admin\AppData\Local\Temp\d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 476
2⤵
- Program crash
PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 796
2⤵
- Program crash
PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 804
2⤵
- Program crash
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 804
2⤵
- Program crash
PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 844
2⤵
- Program crash
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1040
2⤵
- Program crash
PID:1212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1044
2⤵
- Program crash
PID:476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1088
2⤵
- Program crash
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1664
2⤵
- Program crash
PID:2116

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "d7b0b7133301eba1b458006b9ff2c00e89cf4d47f22f1129cdb47b893adcda0d.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 508
2⤵
- Program crash
PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1072 -ip 1072
1⤵
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1072 -ip 1072
1⤵
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1072 -ip 1072
1⤵
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1072 -ip 1072
1⤵
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1072 -ip 1072
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1072 -ip 1072
1⤵
PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1072 -ip 1072
1⤵
PID:1744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1072 -ip 1072
1⤵
PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1072 -ip 1072
1⤵
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1072 -ip 1072
1⤵
PID:3676

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\L5RX1ZBN\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1072-1-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/1072-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1072-2-0x0000000004090000-0x00000000040CC000-memory.dmp

Filesize
240KB

Download
memory/1072-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1072-15-0x0000000000400000-0x0000000002381000-memory.dmp

Filesize
31.5MB

Download
memory/1072-19-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/1072-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1072-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1072-33-0x0000000000400000-0x0000000002381000-memory.dmp

Filesize
31.5MB

Download

Analysis

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