gcleaner | 5783bcfb94f016d22ef95b971b36400e59c9ed1a0caa304dee46bc31da033e23

Analysis

max time kernel
58s
max time network
61s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 08:03

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General

Target

af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe
Size

2.1MB
MD5

0eaad9d4b22af4749f355d047465a2f3
SHA1

96b048898d2aca27c39943d82c82463bfe308602
SHA256

af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03
SHA512

0454e8d7338741f31ac74e9b28a5c8a1efd3f054210f0ba801acda4027eba8fabb6a589f569a7b087ab0ec3d84474af736ae2635010bddfc6faa7bb287c8a253
SSDEEP

49152:icPLnQwkonFv5xg8dnoWk+J4bDoxbk5/m8HaLCgv2MR:XPLnQwkonFv5xg8poWxLxKexv2MR

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
2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
2020	finalrecovery.exe
1980	SrYwUf6.exe

Loads dropped DLL 6 IoCs

pid	Process
280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe
2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
2020	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-PAK19.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-RDLR5.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File opened for modification	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\unins000.dat	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\unins000.dat	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-JIJEP.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-MD3BB.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\data\is-J3F8E.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File opened for modification	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\finalrecovery.exe	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
File created	C:\Program Files (x86)\FHGsoftFR\FinalRecovery\is-CC1NN.tmp	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.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
1092	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2020	finalrecovery.exe
2020	finalrecovery.exe
2020	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1092	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 280 wrote to memory of 2044	280	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe	27
PID 2044 wrote to memory of 2020	2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp	28
PID 2044 wrote to memory of 2020	2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp	28
PID 2044 wrote to memory of 2020	2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp	28
PID 2044 wrote to memory of 2020	2044	af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp	28
PID 2020 wrote to memory of 1980	2020	finalrecovery.exe	29
PID 2020 wrote to memory of 1980	2020	finalrecovery.exe	29
PID 2020 wrote to memory of 1980	2020	finalrecovery.exe	29
PID 2020 wrote to memory of 1980	2020	finalrecovery.exe	29
PID 2020 wrote to memory of 1544	2020	finalrecovery.exe	32
PID 2020 wrote to memory of 1544	2020	finalrecovery.exe	32
PID 2020 wrote to memory of 1544	2020	finalrecovery.exe	32
PID 2020 wrote to memory of 1544	2020	finalrecovery.exe	32
PID 1544 wrote to memory of 1092	1544	cmd.exe	34
PID 1544 wrote to memory of 1092	1544	cmd.exe	34
PID 1544 wrote to memory of 1092	1544	cmd.exe	34
PID 1544 wrote to memory of 1092	1544	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe
"C:\Users\Admin\AppData\Local\Temp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:280
- C:\Users\Admin\AppData\Local\Temp\is-KRBRT.tmp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KRBRT.tmp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp" /SL5="$60120,1960319,198656,C:\Users\Admin\AppData\Local\Temp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2044
- - 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:2020
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SrYwUf6.exe
      4⤵
      Executes dropped EXE
      PID:1980
  - - 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:1544
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1092

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
1616b7f4803ed0a62c99cb510775ae41

SHA1
19ffd7371d8042cea23ff5e8bdf93d65fe89e749

SHA256
3bd51eb7c281ac00f8faffb17545e366bbc69cbc851b12872029df83fbfc8945

SHA512
020f021865240d9b43adc53d42192a5097344eb5227173891d58798d58dbc311984ac3147ef499a0f28c4f49d3814d55b25dc5852226b58df87564755a3864ca

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

Filesize
1.9MB

MD5
1616b7f4803ed0a62c99cb510775ae41

SHA1
19ffd7371d8042cea23ff5e8bdf93d65fe89e749

SHA256
3bd51eb7c281ac00f8faffb17545e366bbc69cbc851b12872029df83fbfc8945

SHA512
020f021865240d9b43adc53d42192a5097344eb5227173891d58798d58dbc311984ac3147ef499a0f28c4f49d3814d55b25dc5852226b58df87564755a3864ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KRBRT.tmp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KRBRT.tmp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SrYwUf6.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

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

Filesize
1.9MB

MD5
1616b7f4803ed0a62c99cb510775ae41

SHA1
19ffd7371d8042cea23ff5e8bdf93d65fe89e749

SHA256
3bd51eb7c281ac00f8faffb17545e366bbc69cbc851b12872029df83fbfc8945

SHA512
020f021865240d9b43adc53d42192a5097344eb5227173891d58798d58dbc311984ac3147ef499a0f28c4f49d3814d55b25dc5852226b58df87564755a3864ca

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

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

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-KRBRT.tmp\af8ce80f0e3fcb35b12c51b4d63c62dc8ee4946496055b3de2bffc05d9503a03.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SrYwUf6.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/280-85-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/280-69-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/280-54-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/280-55-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1092-83-0x0000000000000000-mapping.dmp

Download
memory/1544-82-0x0000000000000000-mapping.dmp

Download
memory/1980-75-0x0000000000000000-mapping.dmp

Download
memory/2020-71-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/2020-73-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/2020-77-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/2020-81-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/2020-72-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/2020-84-0x0000000000400000-0x00000000013E9000-memory.dmp

Filesize
15.9MB

Download
memory/2020-66-0x0000000000000000-mapping.dmp

Download
memory/2044-80-0x00000000036B0000-0x0000000004699000-memory.dmp

Filesize
15.9MB

Download
memory/2044-70-0x00000000036B0000-0x0000000004699000-memory.dmp

Filesize
15.9MB

Download
memory/2044-58-0x0000000000000000-mapping.dmp

Download