gcleaner | 7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c

General

Target

7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe
Size

415KB
MD5

db88b5162c2dc02d21b80ab0458f4257
SHA1

e740e44e3bf13b8460c1ecc044493573aa7ecab4
SHA256

7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c
SHA512

7aedd38b870c47df48f92909e5e7f9789323ac0d405d4039948c3ccd037aac8aa651d7339832bdd6fa3b15e98af251f79039419922332516953ddc5cb08651d8
SSDEEP

6144:vEngbbiZvD7FgW5ohb/ZX9ngtb4u/0OM9QaW0B2RJmjZFJe:vaabiZfmWk/ZX9ngtb4sTa/YRJajJ

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
1548	2772	WerFault.exe	82
2740	2772	WerFault.exe	82
4324	2772	WerFault.exe	82
1248	2772	WerFault.exe	82
984	2772	WerFault.exe	82
4724	2772	WerFault.exe	82
4556	2772	WerFault.exe	82
4056	2772	WerFault.exe	82
656	2772	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3216	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3216	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 752	2772	7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe	111
PID 2772 wrote to memory of 752	2772	7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe	111
PID 2772 wrote to memory of 752	2772	7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe	111
PID 752 wrote to memory of 3216	752	cmd.exe	115
PID 752 wrote to memory of 3216	752	cmd.exe	115
PID 752 wrote to memory of 3216	752	cmd.exe	115

C:\Users\Admin\AppData\Local\Temp\7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe
"C:\Users\Admin\AppData\Local\Temp\7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 740
  2⤵
  - Program crash
  PID:1548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 740
  2⤵
  - Program crash
  PID:2740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 772
  2⤵
  - Program crash
  PID:4324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 812
  2⤵
  - Program crash
  PID:1248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 904
  2⤵
  - Program crash
  PID:984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 1000
  2⤵
  - Program crash
  PID:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 1128
  2⤵
  - Program crash
  PID:4556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 1436
  2⤵
  - Program crash
  PID:4056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "7ae29173f6460d9d9a9613ef289b7c5f88ad21854f456e7fe23ac46530fe733c.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 1400
  2⤵
  - Program crash
  PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2772 -ip 2772
1⤵
PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2772 -ip 2772
1⤵
PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2772 -ip 2772
1⤵
PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2772 -ip 2772
1⤵
PID:2820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2772 -ip 2772
1⤵
PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2772 -ip 2772
1⤵
PID:2624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2772 -ip 2772
1⤵
PID:2884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 2772 -ip 2772
1⤵
PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 2772 -ip 2772
1⤵
PID:2876

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\LI43KEDR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2772-1-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/2772-2-0x0000000002340000-0x000000000236D000-memory.dmp

Filesize
180KB

Download
memory/2772-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2772-8-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download
memory/2772-11-0x0000000002340000-0x000000000236D000-memory.dmp

Filesize
180KB

Download
memory/2772-10-0x0000000000400000-0x00000000005FB000-memory.dmp

Filesize
2.0MB

Download
memory/2772-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2772-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2772-21-0x0000000000400000-0x00000000005FB000-memory.dmp

Filesize
2.0MB

Download

Analysis

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