gcleaner | 1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4

General

Target

1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe
Size

353KB
MD5

0a7e53c2adff3d1736b90e127819dbe9
SHA1

384afee530d2a645015b74fb39ce3667bff48c04
SHA256

1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4
SHA512

d6d5cb5de6f1effb4ad8c99db1dc2fc0e45cd063e1cdfd90333c542f3d7cabd10d59fe6b5d96bb72425d7b2cb26e2b728befbcfe9f6e821677eebdd36526a9a8
SSDEEP

3072:/KMhq6JUVKRwox4jmVrX20dlqBT5vJI2yUzmmaP5QveRM3N3VES+vxNn/5vgOcc5:CMhlRhtX2RBT5vdUP5QveolAVtgsumh

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
4084	4740	WerFault.exe	80
2340	4740	WerFault.exe	80
2628	4740	WerFault.exe	80
3672	4740	WerFault.exe	80
384	4740	WerFault.exe	80
1880	4740	WerFault.exe	80
2856	4740	WerFault.exe	80
4820	4740	WerFault.exe	80
4580	4740	WerFault.exe	80
3492	4740	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
1912	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 4360	4740	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	112
PID 4740 wrote to memory of 4360	4740	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	112
PID 4740 wrote to memory of 4360	4740	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	112
PID 4360 wrote to memory of 1912	4360	cmd.exe	116
PID 4360 wrote to memory of 1912	4360	cmd.exe	116
PID 4360 wrote to memory of 1912	4360	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe
"C:\Users\Admin\AppData\Local\Temp\1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 456
  2⤵
  - Program crash
  PID:4084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 764
  2⤵
  - Program crash
  PID:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 784
  2⤵
  - Program crash
  PID:2628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 784
  2⤵
  - Program crash
  PID:3672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 776
  2⤵
  - Program crash
  PID:384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 928
  2⤵
  - Program crash
  PID:1880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 932
  2⤵
  - Program crash
  PID:2856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 1064
  2⤵
  - Program crash
  PID:4820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 1596
  2⤵
  - Program crash
  PID:4580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 496
  2⤵
  - Program crash
  PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4740 -ip 4740
1⤵
PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4740 -ip 4740
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4740 -ip 4740
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4740 -ip 4740
1⤵
PID:3388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4740 -ip 4740
1⤵
PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4740 -ip 4740
1⤵
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4740 -ip 4740
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4740 -ip 4740
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4740 -ip 4740
1⤵
PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4740 -ip 4740
1⤵
PID:3148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6SQF6WJH\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4740-1-0x0000000002120000-0x0000000002220000-memory.dmp

Filesize
1024KB

Download
memory/4740-2-0x0000000003BC0000-0x0000000003BFC000-memory.dmp

Filesize
240KB

Download
memory/4740-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4740-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4740-14-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download
memory/4740-19-0x0000000002120000-0x0000000002220000-memory.dmp

Filesize
1024KB

Download
memory/4740-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4740-28-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download
memory/4740-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4740-34-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download

Analysis

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