gcleaner | fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f

General

Target

fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
Size

356KB
MD5

f09c488bfeff422f0acc8db51c7b590d
SHA1

657e239e1f833936621e9dfd825cb31137112fc6
SHA256

fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f
SHA512

b3bb99e399f6a5b293d955a2237cf9ffdc7d2ab02754813cce3b6478e6620968330319b4c531cc4325e01d1696950406473ca7178d8116e749d8ac6fcd1e62fa
SSDEEP

6144:TrT21hhM/SHN+L9nDUJ9VVsiG+N3GoA2Hbv+C:TrKZSQTPsz+N

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 9 IoCs

Processes:

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

pid	pid_target	process	target process
1444	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
4776	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
4468	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
2396	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
4960	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
2892	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
1620	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
1552	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
276	5100	WerFault.exe	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1340 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1340 taskkill.exe

pid	process
1340	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1340	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.execmd.exe

description	pid	process	target process
PID 5100 wrote to memory of 4208	5100	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe	cmd.exe
PID 5100 wrote to memory of 4208	5100	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe	cmd.exe
PID 5100 wrote to memory of 4208	5100	fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe	cmd.exe
PID 4208 wrote to memory of 1340	4208	cmd.exe	taskkill.exe
PID 4208 wrote to memory of 1340	4208	cmd.exe	taskkill.exe
PID 4208 wrote to memory of 1340	4208	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe
"C:\Users\Admin\AppData\Local\Temp\fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 472
2⤵
- Program crash
PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 796
2⤵
- Program crash
PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 816
2⤵
- Program crash
PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 796
2⤵
- Program crash
PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 888
2⤵
- Program crash
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 868
2⤵
- Program crash
PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1084
2⤵
- Program crash
PID:1620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1460
2⤵
- Program crash
PID:1552

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4208

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "fc3bfda544affa06f4dcb553fd2cd4f54d359b57cfdfd7ddeccd30a9757b896f.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1364
2⤵
- Program crash
PID:276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5100 -ip 5100
1⤵
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5100 -ip 5100
1⤵
PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5100 -ip 5100
1⤵
PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5100 -ip 5100
1⤵
PID:1788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5100 -ip 5100
1⤵
PID:1920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5100 -ip 5100
1⤵
PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5100 -ip 5100
1⤵
PID:1936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5100 -ip 5100
1⤵
PID:3596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 5100 -ip 5100
1⤵
PID:660

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

memory/5100-2-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/5100-1-0x00000000022E0000-0x00000000023E0000-memory.dmp

Filesize
1024KB

Download
memory/5100-3-0x0000000000400000-0x0000000001FA4000-memory.dmp

Filesize
27.6MB

Download
memory/5100-7-0x0000000000400000-0x0000000001FA4000-memory.dmp

Filesize
27.6MB

Download
memory/5100-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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