gcleaner | 5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25

General

Target

5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
Size

369KB
MD5

d13d52fa632b4c6606b7874fc6733e28
SHA1

091b649bdd1ee951face5c07adde64fe29838216
SHA256

5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25
SHA512

17e0fc87f0d4d0024d210d267aa9aeadf1bbab40933fef040a19a34b7cb86d0fe93c61e060971e81209807ee4807236500194bf6aeb483cac4492a995af6c165
SSDEEP

6144:VST5HihCi8OLdnmSzu2f5JeEhNBlG7LTlcM:VGHni8OpnmSVe5VcM

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
3632	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
3128	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
4700	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
1852	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
3952	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
2064	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
2540	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
3992	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
4112	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
4212	2400	WerFault.exe	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1232 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1232 taskkill.exe

pid	process
1232	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1232	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.execmd.exe

description	pid	process	target process
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	cmd.exe
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	cmd.exe
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	cmd.exe
PID 1904 wrote to memory of 1232	1904	cmd.exe	taskkill.exe
PID 1904 wrote to memory of 1232	1904	cmd.exe	taskkill.exe
PID 1904 wrote to memory of 1232	1904	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
"C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 480
2⤵
- Program crash
PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 532
2⤵
- Program crash
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 788
2⤵
- Program crash
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 800
2⤵
- Program crash
PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 788
2⤵
- Program crash
PID:3952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 872
2⤵
- Program crash
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 968
2⤵
- Program crash
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1068
2⤵
- Program crash
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1640
2⤵
- Program crash
PID:4112

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1592
2⤵
- Program crash
PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2400 -ip 2400
1⤵
PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2400 -ip 2400
1⤵
PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2400 -ip 2400
1⤵
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2400 -ip 2400
1⤵
PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2400 -ip 2400
1⤵
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2400 -ip 2400
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2400 -ip 2400
1⤵
PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2400 -ip 2400
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2400 -ip 2400
1⤵
PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 2400 -ip 2400
1⤵
PID:3436

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\C76012RU\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2400-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/2400-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2400-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

Filesize
240KB

Download
memory/2400-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2400-15-0x0000000000400000-0x0000000002CBA000-memory.dmp

Filesize
40.7MB

Download
memory/2400-22-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/2400-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2400-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2400-33-0x0000000000400000-0x0000000002CBA000-memory.dmp

Filesize
40.7MB

Download

Analysis

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