gcleaner | 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27

General

Target

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
Size

345KB
MD5

7578297a8580620962ff86f96df1de95
SHA1

22771b59a8dfba6c3b6fa091133cef229f7296f3
SHA256

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27
SHA512

7343524ec5cfea431981fa61eafa9b6878b2409ea607413cd3dba68b85b905f87d07ca45eba53d8ed4984a4bd3014dd271b5d81270c11dc408a7867d4fe4b87c
SSDEEP

6144:ICAp7usNvlYXTX9ZTB1wwcB1niwxPKdLi/:VA5uUkfTB1wwcLiwFK

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
712	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1516	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
2492	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1828	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
4900	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
2840	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
5064	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
3684	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
4196	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1928	2332	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4944 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4944 taskkill.exe

pid	process
4944	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4944	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.execmd.exe

description	pid	process	target process
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 3428 wrote to memory of 4944	3428	cmd.exe	taskkill.exe
PID 3428 wrote to memory of 4944	3428	cmd.exe	taskkill.exe
PID 3428 wrote to memory of 4944	3428	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
"C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 476
2⤵
- Program crash
PID:712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 792
2⤵
- Program crash
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 836
2⤵
- Program crash
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 856
2⤵
- Program crash
PID:1828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 880
2⤵
- Program crash
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1000
2⤵
- Program crash
PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1084
2⤵
- Program crash
PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1364
2⤵
- Program crash
PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1664
2⤵
- Program crash
PID:4196

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3428

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 488
2⤵
- Program crash
PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2332 -ip 2332
1⤵
PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2332 -ip 2332
1⤵
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2332 -ip 2332
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2332 -ip 2332
1⤵
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2332 -ip 2332
1⤵
PID:784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2332 -ip 2332
1⤵
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2332 -ip 2332
1⤵
PID:956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2332 -ip 2332
1⤵
PID:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2332 -ip 2332
1⤵
PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2332 -ip 2332
1⤵
PID:1012

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\D1O30EO5\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2332-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2332-2-0x0000000002210000-0x000000000224C000-memory.dmp

Filesize
240KB

Download
memory/2332-1-0x00000000022C0000-0x00000000023C0000-memory.dmp

Filesize
1024KB

Download
memory/2332-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2332-14-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/2332-19-0x00000000022C0000-0x00000000023C0000-memory.dmp

Filesize
1024KB

Download
memory/2332-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2332-28-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/2332-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2332-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download

Analysis

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