gcleaner | f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544

General

Target

f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
Size

344KB
MD5

72422265beaec7caaab1b56946c23c50
SHA1

def66af74c82d0df7796a5a829ee8cc25019e5ea
SHA256

f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544
SHA512

219838aba2640770842c68fdc0c76f940521bbaeeae9aff023883b08ae51e6bc31f00e696aaee96b9b807ac1a5908cb2b6e6416d1445004a0cadd15551ed4cee
SSDEEP

3072:2V6nk5rJdThB4QO1p+HGbMN+9PqO90hYMq64nEidRZUscPpbV5CpiJW5ck+/5WZ9:2ckpTs/eHDOd64n1LZqPppsi7wZnUe

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 9 IoCs

Processes:

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

pid	pid_target	process	target process
1016	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
4292	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
1676	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
2256	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
3056	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
3644	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
488	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
4304	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
4196	3796	WerFault.exe	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4936 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4936 taskkill.exe

pid	process
4936	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4936	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.execmd.exe

description	pid	process	target process
PID 3796 wrote to memory of 3984	3796	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe	cmd.exe
PID 3796 wrote to memory of 3984	3796	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe	cmd.exe
PID 3796 wrote to memory of 3984	3796	f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe	cmd.exe
PID 3984 wrote to memory of 4936	3984	cmd.exe	taskkill.exe
PID 3984 wrote to memory of 4936	3984	cmd.exe	taskkill.exe
PID 3984 wrote to memory of 4936	3984	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe
"C:\Users\Admin\AppData\Local\Temp\f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 476
2⤵
- Program crash
PID:1016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 796
2⤵
- Program crash
PID:4292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 816
2⤵
- Program crash
PID:1676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 840
2⤵
- Program crash
PID:2256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 908
2⤵
- Program crash
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1000
2⤵
- Program crash
PID:3644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1084
2⤵
- Program crash
PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1656
2⤵
- Program crash
PID:4304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3984

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "f9f4c82e31af92238ea1a7bee391e2bf73381a361270822a2fb6e226d34d3544.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 544
2⤵
- Program crash
PID:4196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3796 -ip 3796
1⤵
PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3796 -ip 3796
1⤵
PID:3028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3796 -ip 3796
1⤵
PID:3108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3796 -ip 3796
1⤵
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3796 -ip 3796
1⤵
PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3796 -ip 3796
1⤵
PID:3148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3796 -ip 3796
1⤵
PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3796 -ip 3796
1⤵
PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3796 -ip 3796
1⤵
PID:4300

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\ZTEP9QHJ\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3796-1-0x00000000021D0000-0x00000000022D0000-memory.dmp

Filesize
1024KB

Download
memory/3796-2-0x0000000002310000-0x000000000234C000-memory.dmp

Filesize
240KB

Download
memory/3796-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3796-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3796-14-0x0000000000400000-0x0000000001FA1000-memory.dmp

Filesize
27.6MB

Download
memory/3796-17-0x00000000021D0000-0x00000000022D0000-memory.dmp

Filesize
1024KB

Download
memory/3796-22-0x0000000002310000-0x000000000234C000-memory.dmp

Filesize
240KB

Download
memory/3796-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3796-27-0x0000000000400000-0x0000000001FA1000-memory.dmp

Filesize
27.6MB

Download
memory/3796-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3796-35-0x0000000000400000-0x0000000001FA1000-memory.dmp

Filesize
27.6MB

Download

Analysis

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