gcleaner | adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0

General

Target

adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
Size

392KB
MD5

a8d14c2aee72601b0187a8b03a2c5a70
SHA1

44ba442c8235953d224a8b4e95aef84d190d83c1
SHA256

adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0
SHA512

3e6b6779544c41f260f7f281960e58dd992b3c2294d868ca2620c0078a3a78e0e3e04d26b77116aae92bffa68c0d352fcd3a8fac838e558aaf8f6649adfb78b1
SSDEEP

6144:BYavswvPY5L/Lwe0/laYz5bVu9tkpr+Zls54Mh19lzDeTfFb4T:PswvPuxkMqVu3le5Z1zDeT6

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 11 IoCs

Processes:

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

pid	pid_target	process	target process
3248	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
3088	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
3344	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
3632	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
5016	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
4984	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
4068	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
4668	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
4588	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
3408	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
3084	3564	WerFault.exe	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2240 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2240 taskkill.exe

pid	process
2240	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2240	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.execmd.exe

description	pid	process	target process
PID 3564 wrote to memory of 560	3564	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe	cmd.exe
PID 3564 wrote to memory of 560	3564	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe	cmd.exe
PID 3564 wrote to memory of 560	3564	adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe	cmd.exe
PID 560 wrote to memory of 2240	560	cmd.exe	taskkill.exe
PID 560 wrote to memory of 2240	560	cmd.exe	taskkill.exe
PID 560 wrote to memory of 2240	560	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe
"C:\Users\Admin\AppData\Local\Temp\adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 476
2⤵
- Program crash
PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 532
2⤵
- Program crash
PID:3088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 780
2⤵
- Program crash
PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 780
2⤵
- Program crash
PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 812
2⤵
- Program crash
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 872
2⤵
- Program crash
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 984
2⤵
- Program crash
PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 992
2⤵
- Program crash
PID:4668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 1240
2⤵
- Program crash
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 1780
2⤵
- Program crash
PID:3408

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:560

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "adb64db04eef2da9ab7a4d866383f31564eaaa95206aa2a5e9b28ff8218750a0.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 1732
2⤵
- Program crash
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3564 -ip 3564
1⤵
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3564 -ip 3564
1⤵
PID:1552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3564 -ip 3564
1⤵
PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3564 -ip 3564
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3564 -ip 3564
1⤵
PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3564 -ip 3564
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3564 -ip 3564
1⤵
PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3564 -ip 3564
1⤵
PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3564 -ip 3564
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3564 -ip 3564
1⤵
PID:1544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3564 -ip 3564
1⤵
PID:2648

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\VZQAW3IB\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3564-2-0x00000000023A0000-0x00000000023DC000-memory.dmp

Filesize
240KB

Download
memory/3564-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3564-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3564-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3564-15-0x0000000000400000-0x0000000000695000-memory.dmp

Filesize
2.6MB

Download
memory/3564-22-0x00000000023A0000-0x00000000023DC000-memory.dmp

Filesize
240KB

Download
memory/3564-21-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3564-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3564-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3564-34-0x0000000000400000-0x0000000000695000-memory.dmp

Filesize
2.6MB

Download

Analysis

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