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
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
900	960	WerFault.exe	79
340	960	WerFault.exe	79
1208	960	WerFault.exe	79
3684	960	WerFault.exe	79
1484	960	WerFault.exe	79
3108	960	WerFault.exe	79
2976	960	WerFault.exe	79
572	960	WerFault.exe	79
3600	960	WerFault.exe	79
5084	960	WerFault.exe	79

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
2376	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 4168	960	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	101
PID 960 wrote to memory of 4168	960	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	101
PID 960 wrote to memory of 4168	960	d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe	101
PID 4168 wrote to memory of 2376	4168	cmd.exe	104
PID 4168 wrote to memory of 2376	4168	cmd.exe	104
PID 4168 wrote to memory of 2376	4168	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad9ccbec1ac90a6030ee7aed785a7275b6369a49ac825d144452e8d751be01.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 476
  2⤵
  - Program crash
  PID:900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 500
  2⤵
  - Program crash
  PID:340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 788
  2⤵
  - Program crash
  PID:1208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 820
  2⤵
  - Program crash
  PID:3684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 840
  2⤵
  - Program crash
  PID:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 856
  2⤵
  - Program crash
  PID:3108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 960
  2⤵
  - Program crash
  PID:2976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 1084
  2⤵
  - Program crash
  PID:572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 1632
  2⤵
  - Program crash
  PID:3600
- 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:4168
- - 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:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 1704
  2⤵
  - Program crash
  PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 960 -ip 960
1⤵
PID:2200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 960 -ip 960
1⤵
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 960 -ip 960
1⤵
PID:1020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 960 -ip 960
1⤵
PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 960 -ip 960
1⤵
PID:800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 960 -ip 960
1⤵
PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 960 -ip 960
1⤵
PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 960 -ip 960
1⤵
PID:4336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 960 -ip 960
1⤵
PID:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 960 -ip 960
1⤵
PID:4764

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

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\6LUG8YDR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/960-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/960-2-0x00000000022A0000-0x00000000022DB000-memory.dmp

Filesize
236KB

Download
memory/960-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/960-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/960-13-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/960-15-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/960-16-0x00000000022A0000-0x00000000022DB000-memory.dmp

Filesize
236KB

Download
memory/960-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/960-29-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/960-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/960-35-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

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