gcleaner | dda824165a0edeb816599eff41e2f7a7f39398f960bf0a4ccc67836f45bf30eb

General

Target

ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe
Size

2.0MB
MD5

a6ab04cca14aece0c6368c194baf661c
SHA1

d8acca325c59bab0eb26373611723d32d91c2485
SHA256

ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96
SHA512

3f2e7c030c1380ff53bc7fc8da47bece23ac0e846e862bc21bca475a8818881dfad1d2fae2e47c9a76c24e384bb36f7b24b7152c2e1956e727d455b1682a9db5
SSDEEP

49152:bgw2aVxkJpmcT7a59MJ1SSuwDnxeN+wKcGodhp3r/8AlRNELCgv2MR:cr7JpmcT51SiSK+3r8gQv2MR

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	finalrecovery.exe

Executes dropped EXE 3 IoCs

pid	Process
4844	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
1428	finalrecovery.exe
4188	1kyWRBj.exe

Loads dropped DLL 1 IoCs

pid	Process
4844	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\unins000.dat	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\is-3LPD0.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\is-FICAM.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\is-JOSED.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\is-96CD9.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\is-5V14R.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File created	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\data\is-499CV.tmp	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File opened for modification	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\unins000.dat	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
File opened for modification	C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1860	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1428	finalrecovery.exe
1428	finalrecovery.exe
1428	finalrecovery.exe
1428	finalrecovery.exe
1428	finalrecovery.exe
1428	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 4844	4904	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe	81
PID 4904 wrote to memory of 4844	4904	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe	81
PID 4904 wrote to memory of 4844	4904	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe	81
PID 4844 wrote to memory of 1428	4844	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp	82
PID 4844 wrote to memory of 1428	4844	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp	82
PID 4844 wrote to memory of 1428	4844	ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp	82
PID 1428 wrote to memory of 4188	1428	finalrecovery.exe	83
PID 1428 wrote to memory of 4188	1428	finalrecovery.exe	83
PID 1428 wrote to memory of 4188	1428	finalrecovery.exe	83
PID 1428 wrote to memory of 4308	1428	finalrecovery.exe	91
PID 1428 wrote to memory of 4308	1428	finalrecovery.exe	91
PID 1428 wrote to memory of 4308	1428	finalrecovery.exe	91
PID 4308 wrote to memory of 1860	4308	cmd.exe	93
PID 4308 wrote to memory of 1860	4308	cmd.exe	93
PID 4308 wrote to memory of 1860	4308	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe
"C:\Users\Admin\AppData\Local\Temp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\is-5BDFB.tmp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5BDFB.tmp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp" /SL5="$B0068,1857244,71680,C:\Users\Admin\AppData\Local\Temp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1428
  - - C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\1kyWRBj.exe
      4⤵
      Executes dropped EXE
      PID:4188
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4308
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe

Filesize
1.9MB

MD5
4d18ed15339adc5d8ed4f75e05bdcd66

SHA1
d062fe87aaa59221f5d49db2f24b3105e6d1a656

SHA256
15d8461db9c29be8d0bd34a04e1a871928968c1e37118efc09654ecb16aefead

SHA512
db570f8fe35f293817bcc265eed3baf98da68625ec6e02c8503e68dde840dc6d7ba2b619b1bf77715043fa6133b073b4ce307f7c2476e3bdc3bed2b3be81207c

Download Submit
C:\Program Files (x86)\FHHsoftFR\FinalRecovery\finalrecovery.exe

Filesize
1.9MB

MD5
4d18ed15339adc5d8ed4f75e05bdcd66

SHA1
d062fe87aaa59221f5d49db2f24b3105e6d1a656

SHA256
15d8461db9c29be8d0bd34a04e1a871928968c1e37118efc09654ecb16aefead

SHA512
db570f8fe35f293817bcc265eed3baf98da68625ec6e02c8503e68dde840dc6d7ba2b619b1bf77715043fa6133b073b4ce307f7c2476e3bdc3bed2b3be81207c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5BDFB.tmp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5BDFB.tmp\ef53963afa99e4a61f7978e66cd6343895bb6c4a5368a94b7d9fe6ad67e4eb96.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-S5I54.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\1kyWRBj.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\1kyWRBj.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1428-143-0x0000000000400000-0x00000000013E8000-memory.dmp

Filesize
15.9MB

Download
memory/1428-152-0x0000000000400000-0x00000000013E8000-memory.dmp

Filesize
15.9MB

Download
memory/1428-142-0x0000000000400000-0x00000000013E8000-memory.dmp

Filesize
15.9MB

Download
memory/1428-155-0x0000000000400000-0x00000000013E8000-memory.dmp

Filesize
15.9MB

Download
memory/1428-144-0x0000000000400000-0x00000000013E8000-memory.dmp

Filesize
15.9MB

Download
memory/1428-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4904-134-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4904-151-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4904-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4904-156-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing