gcleaner | 9d769331b288f1e1087769cca0bbe7e08bff0733e6ef64fafef1beaacb0df08d

Analysis

max time kernel
62s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2023, 16:17

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General

Target
file.exe
Size 2.3MB
Sample230128-trclhsfc94
SHA256 9d769331b288f1e1087769cca0bbe7e08bff0733e6ef64fafef1beaacb0df08d
MD5 52e2157566fe5d7cff2f731f45d3cb12
SHA1 fbfb46768a8f16ff34cdd0ddce840bc056a91984
SHA512 95f65b2d64208a3797169cac768e47e4d6b2e30f5d4b4d4ffbfdc0a93029cdc6221140c9ac225da1bb6ccc46f856156a8f2e4143e89b32ab89c5d1d0bac37061
SSDEEP 49152:okug+1PzCdDahgV2wLaCBmciFmhtgB9xzhSODSyzilLQxVLCgv2MR:hug+1bCghc2A5iFt9xNpzil4Jv2MR
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

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

Executes dropped EXE 3 IoCs

pid	Process
2296	file.tmp
1980	finalrecovery.exe
2100	ADniLs.exe

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	finalrecovery.exe

Loads dropped DLL 3 IoCs

pid	Process
2296	file.tmp
2296	file.tmp
2296	file.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)\FgdsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\is-0V5NH.tmp	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\is-C5PA1.tmp	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\is-2KNMA.tmp	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\is-94UHQ.tmp	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\data\is-8LDCE.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\is-RJ20S.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FgdsoftFR\FinalRecovery\unins000.dat	file.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
4752	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1980	finalrecovery.exe
1980	finalrecovery.exe
1980	finalrecovery.exe
1980	finalrecovery.exe
1980	finalrecovery.exe
1980	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4752	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 2296	4888	file.exe	81
PID 4888 wrote to memory of 2296	4888	file.exe	81
PID 4888 wrote to memory of 2296	4888	file.exe	81
PID 2296 wrote to memory of 1980	2296	file.tmp	82
PID 2296 wrote to memory of 1980	2296	file.tmp	82
PID 2296 wrote to memory of 1980	2296	file.tmp	82
PID 1980 wrote to memory of 2100	1980	finalrecovery.exe	83
PID 1980 wrote to memory of 2100	1980	finalrecovery.exe	83
PID 1980 wrote to memory of 2100	1980	finalrecovery.exe	83
PID 1980 wrote to memory of 2712	1980	finalrecovery.exe	91
PID 1980 wrote to memory of 2712	1980	finalrecovery.exe	91
PID 1980 wrote to memory of 2712	1980	finalrecovery.exe	91
PID 2712 wrote to memory of 4752	2712	cmd.exe	93
PID 2712 wrote to memory of 4752	2712	cmd.exe	93
PID 2712 wrote to memory of 4752	2712	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Users\Admin\AppData\Local\Temp\is-S8G21.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-S8G21.tmp\file.tmp" /SL5="$8005A,2112502,135168,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2296
- - C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1980
  - - C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\ADniLs.exe
      4⤵
      Executes dropped EXE
      PID:2100
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2712
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

finalrecovery.exe

Path C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe
Size 1.8MB
SHA256 4ffe8585c5b8d9127e4229c918bc2b90d3f5c84a2287d7c3d9d354cb0215ac67
MD5 5bf03ec28dbe12a47d425a8809c98956
SHA1 84a6edffbf3374f0d18d699f0b5362ffd2c2b94d
SHA512 24c4129613285f7f13d9135cd5cc275bc88258fbf4ae421436068275686c660dc78c97d612a10eaa283bcdf0a59f9b58c3e332ab96cf62891c130d3c2e4b634b
SSDEEP 24576:5YY9CRmLy7FZb1uzRDK1+P76iowKm0waiOqRFEM7KjZ:PCjZA8RwCirRmHF
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\FgdsoftFR\FinalRecovery\finalrecovery.exe
Size 1.8MB
SHA256 4ffe8585c5b8d9127e4229c918bc2b90d3f5c84a2287d7c3d9d354cb0215ac67
MD5 5bf03ec28dbe12a47d425a8809c98956
SHA1 84a6edffbf3374f0d18d699f0b5362ffd2c2b94d
SHA512 24c4129613285f7f13d9135cd5cc275bc88258fbf4ae421436068275686c660dc78c97d612a10eaa283bcdf0a59f9b58c3e332ab96cf62891c130d3c2e4b634b
SSDEEP 24576:5YY9CRmLy7FZb1uzRDK1+P76iowKm0waiOqRFEM7KjZ:PCjZA8RwCirRmHF
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-7BSKS.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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_isdecmp.dll

Path C:\Users\Admin\AppData\Local\Temp\is-7BSKS.tmp\_isetup\_isdecmp.dll
Size 13KB
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
SSDEEP 384:BXvhMwoSitz/bjx7yxnbdn+EHvbsHoOODCg:BZ7FEAbd+EDsIO
MD5 SHA1 SHA512 SSDEEP

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_isdecmp.dll

Path C:\Users\Admin\AppData\Local\Temp\is-7BSKS.tmp\_isetup\_isdecmp.dll
Size 13KB
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
SSDEEP 384:BXvhMwoSitz/bjx7yxnbdn+EHvbsHoOODCg:BZ7FEAbd+EDsIO
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-S8G21.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-S8G21.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

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ADniLs.exe

Path C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\ADniLs.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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ADniLs.exe

Path C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\ADniLs.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/1980-156-0x0000000000400000-0x00000000013D5000-memory.dmp

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memory/1980-153-0x0000000000400000-0x00000000013D5000-memory.dmp

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memory/1980-145-0x0000000000400000-0x00000000013D5000-memory.dmp

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memory/1980-146-0x0000000000400000-0x00000000013D5000-memory.dmp

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memory/1980-150-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/2296-139-0x0000000003201000-0x0000000003203000-memory.dmp

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memory/4888-132-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4888-141-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/4888-157-0x0000000000400000-0x0000000000428000-memory.dmp

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