gcleaner | 70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53

General

Target

70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe
Size

311KB
MD5

252636d2c1f05c36678e1fdb4704a487
SHA1

fcbb8c213ad4c71f1544df7cdbcc453c5439d156
SHA256

70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53
SHA512

c7f6ea459ce8efbdb8ebc36301e457fdfaa7e5596b5f91ef0be555d80c5a4f2d7a2f4a12948c3a3a95d8b22763972e1cc5e009cc1e91fbb2ec1329cfb2b3629a
SSDEEP

6144:se0EPXOpVg4NSfJUv67eyjSYUkjWyProIOgx70:sXEPXODn8uv67wkWyProId

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.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
3624	2868	WerFault.exe	82
4544	2868	WerFault.exe	82
2840	2868	WerFault.exe	82
1856	2868	WerFault.exe	82
4564	2868	WerFault.exe	82
1440	2868	WerFault.exe	82
4004	2868	WerFault.exe	82
4388	2868	WerFault.exe	82
1832	2868	WerFault.exe	82
4400	2868	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	70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.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
2352	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2352	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 544	2868	70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe	115
PID 2868 wrote to memory of 544	2868	70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe	115
PID 2868 wrote to memory of 544	2868	70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe	115
PID 544 wrote to memory of 2352	544	cmd.exe	118
PID 544 wrote to memory of 2352	544	cmd.exe	118
PID 544 wrote to memory of 2352	544	cmd.exe	118

C:\Users\Admin\AppData\Local\Temp\70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe
"C:\Users\Admin\AppData\Local\Temp\70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 452
  2⤵
  - Program crash
  PID:3624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 772
  2⤵
  - Program crash
  PID:4544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 788
  2⤵
  - Program crash
  PID:2840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 808
  2⤵
  - Program crash
  PID:1856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 840
  2⤵
  - Program crash
  PID:4564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 928
  2⤵
  - Program crash
  PID:1440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1004
  2⤵
  - Program crash
  PID:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1048
  2⤵
  - Program crash
  PID:4388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1568
  2⤵
  - Program crash
  PID:1832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "70ad12de5123146f1fae3dde193802a51f7e5b3f7bc9a39d97f941e50e06ac53.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 492
  2⤵
  - Program crash
  PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2868 -ip 2868
1⤵
PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2868 -ip 2868
1⤵
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2868 -ip 2868
1⤵
PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2868 -ip 2868
1⤵
PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2868 -ip 2868
1⤵
PID:3176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2868 -ip 2868
1⤵
PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2868 -ip 2868
1⤵
PID:2176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2868 -ip 2868
1⤵
PID:1268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2868 -ip 2868
1⤵
PID:3624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2868 -ip 2868
1⤵
PID:4320

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\VNN58CU3\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2868-1-0x00000000029F0000-0x0000000002AF0000-memory.dmp

Filesize
1024KB

Download
memory/2868-2-0x00000000044D0000-0x000000000450B000-memory.dmp

Filesize
236KB

Download
memory/2868-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2868-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2868-13-0x00000000029F0000-0x0000000002AF0000-memory.dmp

Filesize
1024KB

Download
memory/2868-15-0x00000000044D0000-0x000000000450B000-memory.dmp

Filesize
236KB

Download
memory/2868-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2868-16-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download
memory/2868-27-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download
memory/2868-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2868-35-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download

Analysis

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