gcleaner | 66d53a02848c70aabb3ae384ad8b96e1823de3beee4e5640c3587f4157c319a4

Analysis

max time kernel
60s
max time network
61s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/02/2023, 23:31

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General

Target

file.exe
Size

2.1MB
MD5

a898fa03d08e6fe4e2c6c235895a81ea
SHA1

9a1ad644870e8ca8847fd1d3387c47492b26d89b
SHA256

66d53a02848c70aabb3ae384ad8b96e1823de3beee4e5640c3587f4157c319a4
SHA512

4e8c685d275588ceb9e389609773ac5d748df94331226235be1a406af053d9a85fe086c535f87953f198564c72a7cad31a304866bda78e74dca8e11fae47dfea
SSDEEP

49152:icPLnQbp2+bJQ6TvCT2dKLgNL9bXQ5vIYOXPL4ndLCgv2MR:XPLnQd2+VZTva2igBlA1Itz4nhv2MR

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
1676	file.tmp
1316	finalrecovery.exe
268	7AJlEWf2AQ59S.exe

Loads dropped DLL 6 IoCs

pid	Process
1516	file.exe
1676	file.tmp
1676	file.tmp
1676	file.tmp
1676	file.tmp
1316	finalrecovery.exe

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)\FHGsoftFR\FinalRecovery\is-12INV.tmp	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-IUO9T.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\data\is-JD7ER.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-0HSS3.tmp	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-E1LD5.tmp	file.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-73IKN.tmp	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
824	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1316	finalrecovery.exe
1316	finalrecovery.exe
1316	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1516 wrote to memory of 1676	1516	file.exe	28
PID 1676 wrote to memory of 1316	1676	file.tmp	29
PID 1676 wrote to memory of 1316	1676	file.tmp	29
PID 1676 wrote to memory of 1316	1676	file.tmp	29
PID 1676 wrote to memory of 1316	1676	file.tmp	29
PID 1316 wrote to memory of 268	1316	finalrecovery.exe	30
PID 1316 wrote to memory of 268	1316	finalrecovery.exe	30
PID 1316 wrote to memory of 268	1316	finalrecovery.exe	30
PID 1316 wrote to memory of 268	1316	finalrecovery.exe	30
PID 1316 wrote to memory of 1636	1316	finalrecovery.exe	33
PID 1316 wrote to memory of 1636	1316	finalrecovery.exe	33
PID 1316 wrote to memory of 1636	1316	finalrecovery.exe	33
PID 1316 wrote to memory of 1636	1316	finalrecovery.exe	33
PID 1636 wrote to memory of 824	1636	cmd.exe	35
PID 1636 wrote to memory of 824	1636	cmd.exe	35
PID 1636 wrote to memory of 824	1636	cmd.exe	35
PID 1636 wrote to memory of 824	1636	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\is-05BQE.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-05BQE.tmp\file.tmp" /SL5="$70124,1996413,198656,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:1676
- - C:\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\7AJlEWf2AQ59S.exe
      4⤵
      Executes dropped EXE
      PID:268
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1636
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:824

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

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

Filesize
1.9MB

MD5
21378b55ba9fa7e90a023a04470c96fb

SHA1
941b67401090787969145dfdd6c279ad7b674de5

SHA256
8459c0d854581a66da5352e92d7e549773933cee5db3e4e7ffec2d60d62241ff

SHA512
3ca37cae0f4434c3479070aae322653a7f858703426bf4e5a201cf8766247c5178a0f9d9b18d92faa004d444d140f8571aa3c806ebabb53fe12888dda49800c7

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

Filesize
1.9MB

MD5
21378b55ba9fa7e90a023a04470c96fb

SHA1
941b67401090787969145dfdd6c279ad7b674de5

SHA256
8459c0d854581a66da5352e92d7e549773933cee5db3e4e7ffec2d60d62241ff

SHA512
3ca37cae0f4434c3479070aae322653a7f858703426bf4e5a201cf8766247c5178a0f9d9b18d92faa004d444d140f8571aa3c806ebabb53fe12888dda49800c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-05BQE.tmp\file.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-05BQE.tmp\file.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\7AJlEWf2AQ59S.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe

Filesize
1.9MB

MD5
21378b55ba9fa7e90a023a04470c96fb

SHA1
941b67401090787969145dfdd6c279ad7b674de5

SHA256
8459c0d854581a66da5352e92d7e549773933cee5db3e4e7ffec2d60d62241ff

SHA512
3ca37cae0f4434c3479070aae322653a7f858703426bf4e5a201cf8766247c5178a0f9d9b18d92faa004d444d140f8571aa3c806ebabb53fe12888dda49800c7

Download Submit
\Users\Admin\AppData\Local\Temp\is-05BQE.tmp\file.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
\Users\Admin\AppData\Local\Temp\is-PES8Q.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-PES8Q.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-PES8Q.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\7AJlEWf2AQ59S.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1316-71-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-82-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-72-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-73-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-85-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-81-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/1316-77-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1516-68-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1516-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download
memory/1516-86-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1516-55-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1676-80-0x00000000035B0000-0x0000000004599000-memory.dmp

Filesize
15.9MB

Download
memory/1676-70-0x00000000035B0000-0x0000000004599000-memory.dmp

Filesize
15.9MB

Download