gcleaner | e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95

General

Target

e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe
Size

401KB
MD5

f014dcd4c617fada93c488f904d3e753
SHA1

cec49207704f871f054c315d9f392b96f70b2309
SHA256

e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95
SHA512

5a6ba6c628276e2033d3b2793f8575f4e5f9209cf4b61c8e958e38267910d8463fe52a58a02ee4775900a41ed183158759b46af1b52af31da9d9d0da4ae866db
SSDEEP

6144:X4DbnS3TfbACSU6IRq8LrG5Iu17si6rgBN1aaZQBti0VHf5XIIA:X4nS3TfbACSUP9W5Iu1vnrCti0VHf54

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.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
1244	3412	WerFault.exe	89
2476	3412	WerFault.exe	89
4612	3412	WerFault.exe	89
2980	3412	WerFault.exe	89
3320	3412	WerFault.exe	89
3440	3412	WerFault.exe	89
4060	3412	WerFault.exe	89
4820	3412	WerFault.exe	89
4288	3412	WerFault.exe	89

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	e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1756	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 2612	3412	e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe	121
PID 3412 wrote to memory of 2612	3412	e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe	121
PID 3412 wrote to memory of 2612	3412	e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe	121
PID 2612 wrote to memory of 1756	2612	cmd.exe	125
PID 2612 wrote to memory of 1756	2612	cmd.exe	125
PID 2612 wrote to memory of 1756	2612	cmd.exe	125

C:\Users\Admin\AppData\Local\Temp\e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe
"C:\Users\Admin\AppData\Local\Temp\e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 452
  2⤵
  - Program crash
  PID:1244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 764
  2⤵
  - Program crash
  PID:2476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 804
  2⤵
  - Program crash
  PID:4612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 844
  2⤵
  - Program crash
  PID:2980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 892
  2⤵
  - Program crash
  PID:3320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 928
  2⤵
  - Program crash
  PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 932
  2⤵
  - Program crash
  PID:4060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 1648
  2⤵
  - Program crash
  PID:4820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "e0d6620f56005133a7252198c7a4780664b43c91d347097594825bbc7912ef95.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 1664
  2⤵
  - Program crash
  PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3412 -ip 3412
1⤵
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3412 -ip 3412
1⤵
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3412 -ip 3412
1⤵
PID:4848

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4248,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
1⤵
PID:976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3412 -ip 3412
1⤵
PID:3352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3412 -ip 3412
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3412 -ip 3412
1⤵
PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3412 -ip 3412
1⤵
PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3412 -ip 3412
1⤵
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3412 -ip 3412
1⤵
PID:3536

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\0KP8BKDN\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3412-1-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download
memory/3412-2-0x0000000000760000-0x000000000079B000-memory.dmp

Filesize
236KB

Download
memory/3412-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3412-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3412-13-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download
memory/3412-14-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/3412-16-0x0000000000760000-0x000000000079B000-memory.dmp

Filesize
236KB

Download
memory/3412-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3412-30-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/3412-37-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3412-36-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download

Analysis

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