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
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
1352	2560	WerFault.exe	77
3156	2560	WerFault.exe	77
3524	2560	WerFault.exe	77
5036	2560	WerFault.exe	77
3064	2560	WerFault.exe	77
1072	2560	WerFault.exe	77
784	2560	WerFault.exe	77
1428	2560	WerFault.exe	77
1032	2560	WerFault.exe	77
796	2560	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
1328	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1328	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2684	2560	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	97
PID 2560 wrote to memory of 2684	2560	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	97
PID 2560 wrote to memory of 2684	2560	1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe	97
PID 2684 wrote to memory of 1328	2684	cmd.exe	100
PID 2684 wrote to memory of 1328	2684	cmd.exe	100
PID 2684 wrote to memory of 1328	2684	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe
"C:\Users\Admin\AppData\Local\Temp\1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 476
  2⤵
  - Program crash
  PID:1352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 796
  2⤵
  - Program crash
  PID:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 816
  2⤵
  - Program crash
  PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 796
  2⤵
  - Program crash
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 868
  2⤵
  - Program crash
  PID:3064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1008
  2⤵
  - Program crash
  PID:1072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1012
  2⤵
  - Program crash
  PID:784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1476
  2⤵
  - Program crash
  PID:1428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1788
  2⤵
  - Program crash
  PID:1032
- 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:2684
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1be51b148851e6f2d166229231341832ea90960283558c0c78453485f4fc22c4.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 1740
  2⤵
  - Program crash
  PID:796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2560 -ip 2560
1⤵
PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2560 -ip 2560
1⤵
PID:1920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2560 -ip 2560
1⤵
PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2560 -ip 2560
1⤵
PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2560 -ip 2560
1⤵
PID:1028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2560 -ip 2560
1⤵
PID:1636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2560 -ip 2560
1⤵
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2560 -ip 2560
1⤵
PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2560 -ip 2560
1⤵
PID:2568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2560 -ip 2560
1⤵
PID:4972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\Q6G58NOJ\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2560-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2560-1-0x00000000021C0000-0x00000000022C0000-memory.dmp

Filesize
1024KB

Download
memory/2560-2-0x0000000003CE0000-0x0000000003D1C000-memory.dmp

Filesize
240KB

Download
memory/2560-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2560-15-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download
memory/2560-22-0x00000000021C0000-0x00000000022C0000-memory.dmp

Filesize
1024KB

Download
memory/2560-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2560-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2560-33-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download

Analysis

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