gcleaner | d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01

General

Target

d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe
Size

299KB
MD5

a75147ade71980a4b3c7e21dec154841
SHA1

7ad3f946efc26afdfbd76035570c8addb4c1aff4
SHA256

d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01
SHA512

603ac8ef234f23a1ce6ab5b62cc100ecb0a9c0519050257fadc31afe118bdbd3194265cbdc0054aa5094cfedb3be6024f66c350f2b7953a48bf0b86b3bc41814
SSDEEP

6144:ppDUYxOOoC2rftC1CKuX2+wNYoFmyi34L9shGb/MMx0Vdh1JQ:pVUHbC2jt3KuX2+07iICxVdz

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.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
4104	3592	WerFault.exe	82
2628	3592	WerFault.exe	82
2040	3592	WerFault.exe	82
2156	3592	WerFault.exe	82
208	3592	WerFault.exe	82
4656	3592	WerFault.exe	82
1272	3592	WerFault.exe	82
1980	3592	WerFault.exe	82
3472	3592	WerFault.exe	82
4408	3592	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2848	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 2248	3592	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	114
PID 3592 wrote to memory of 2248	3592	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	114
PID 3592 wrote to memory of 2248	3592	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	114
PID 2248 wrote to memory of 2848	2248	cmd.exe	118
PID 2248 wrote to memory of 2848	2248	cmd.exe	118
PID 2248 wrote to memory of 2848	2248	cmd.exe	118

C:\Users\Admin\AppData\Local\Temp\d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 440
  2⤵
  - Program crash
  PID:4104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 480
  2⤵
  - Program crash
  PID:2628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 756
  2⤵
  - Program crash
  PID:2040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 748
  2⤵
  - Program crash
  PID:2156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 800
  2⤵
  - Program crash
  PID:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 840
  2⤵
  - Program crash
  PID:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 912
  2⤵
  - Program crash
  PID:1272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 920
  2⤵
  - Program crash
  PID:1980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 1544
  2⤵
  - Program crash
  PID:3472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 1576
  2⤵
  - Program crash
  PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3592 -ip 3592
1⤵
PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3592 -ip 3592
1⤵
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3592 -ip 3592
1⤵
PID:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3592 -ip 3592
1⤵
PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3592 -ip 3592
1⤵
PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3592 -ip 3592
1⤵
PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3592 -ip 3592
1⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3592 -ip 3592
1⤵
PID:2636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3592 -ip 3592
1⤵
PID:2420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3592 -ip 3592
1⤵
PID:212

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\H9MX5QVK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3592-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/3592-2-0x00000000021A0000-0x00000000021DB000-memory.dmp

Filesize
236KB

Download
memory/3592-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3592-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3592-13-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/3592-14-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3592-16-0x00000000021A0000-0x00000000021DB000-memory.dmp

Filesize
236KB

Download
memory/3592-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3592-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3592-35-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

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