gcleaner | c9abeb237b284d2aee39f0c69a1042aa3dbe285aa528f23ffdaed82a0a08a229

Analysis

max time kernel
66s
max time network
73s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
16/01/2023, 17:46

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General

Target
file.exe
Size 1.9MB
Sample230116-wcajqaef31
SHA256 c9abeb237b284d2aee39f0c69a1042aa3dbe285aa528f23ffdaed82a0a08a229
MD5 0e7d49c38e45d1c993985279e08ed159
SHA1 405dc75e2d9ab33723b4ddf107a98b16d3ae3cb0
SHA512 11b03a48a047e2a0219f937964287a815fc49e9c685b2ccfbeb9bc2b565138f33fdebd036ad1525f025ef16adef1f08d4d8eec0465f3d9e532ff4f6512df604a
SSDEEP 49152:mo51SyUlCE4JQFBpqahlYrsoITZCAx1GTj:H1S1QEvBprhOY/CAx1GTj
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
916	file.tmp
1076	finalrecovery.exe
1128	o8uEaEHpJDS.exe

Loads dropped DLL 6 IoCs

pid	Process
872	file.exe
916	file.tmp
916	file.tmp
916	file.tmp
916	file.tmp
1076	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)\MeetsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-VV6QI.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-GSP6F.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-VDDH9.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\data\is-D4ARC.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\unins000.dat	file.tmp
File opened for modification	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-57LJK.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-72HSH.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
268	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1076	finalrecovery.exe
1076	finalrecovery.exe
1076	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	268	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 872 wrote to memory of 916	872	file.exe	27
PID 916 wrote to memory of 1076	916	file.tmp	28
PID 916 wrote to memory of 1076	916	file.tmp	28
PID 916 wrote to memory of 1076	916	file.tmp	28
PID 916 wrote to memory of 1076	916	file.tmp	28
PID 1076 wrote to memory of 1128	1076	finalrecovery.exe	29
PID 1076 wrote to memory of 1128	1076	finalrecovery.exe	29
PID 1076 wrote to memory of 1128	1076	finalrecovery.exe	29
PID 1076 wrote to memory of 1128	1076	finalrecovery.exe	29
PID 1076 wrote to memory of 1912	1076	finalrecovery.exe	32
PID 1076 wrote to memory of 1912	1076	finalrecovery.exe	32
PID 1076 wrote to memory of 1912	1076	finalrecovery.exe	32
PID 1076 wrote to memory of 1912	1076	finalrecovery.exe	32
PID 1912 wrote to memory of 268	1912	cmd.exe	34
PID 1912 wrote to memory of 268	1912	cmd.exe	34
PID 1912 wrote to memory of 268	1912	cmd.exe	34
PID 1912 wrote to memory of 268	1912	cmd.exe	34

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:872
- C:\Users\Admin\AppData\Local\Temp\is-ES0V0.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-ES0V0.tmp\file.tmp" /SL5="$60124,1715858,54272,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:916
- - C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\o8uEaEHpJDS.exe
      4⤵
      Executes dropped EXE
      PID:1128
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1912
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:268

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)\MeetsoftFR\FinalRecovery\finalrecovery.exe
Size 2.1MB
SHA256 18dff6d4fea86f1478c7ba6bdae1e7f005a66a9bd2e043bbab915fdf2e671ee2
MD5 3353a94dda35f0ad9ed6e0ebfc0f3b0f
SHA1 8b205003c56140376243da0a4ce63d1009e04dcf
SHA512 50028fdbcaaa5d84bf1a066ac0f21f97259fa280801fcbaed49ea94038aab1b234d835bc84b29fdbe48b0e459fd3b7a0e4de8deb6b530c502ced506f6e487691
SSDEEP 24576:6kDWyhB+YNYmKi8d8kJt6EK2td4580jCm+E1tBEUKrY2ACi2GJ3rhaUDUVnPhD:NjPmTh45Ok9KMp2SUdPhD
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
Size 2.1MB
SHA256 18dff6d4fea86f1478c7ba6bdae1e7f005a66a9bd2e043bbab915fdf2e671ee2
MD5 3353a94dda35f0ad9ed6e0ebfc0f3b0f
SHA1 8b205003c56140376243da0a4ce63d1009e04dcf
SHA512 50028fdbcaaa5d84bf1a066ac0f21f97259fa280801fcbaed49ea94038aab1b234d835bc84b29fdbe48b0e459fd3b7a0e4de8deb6b530c502ced506f6e487691
SSDEEP 24576:6kDWyhB+YNYmKi8d8kJt6EK2td4580jCm+E1tBEUKrY2ACi2GJ3rhaUDUVnPhD:NjPmTh45Ok9KMp2SUdPhD
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-ES0V0.tmp\file.tmp
Size 696KB
SHA256 b1aa9fab8bd7c68246c60587cda7709166be3c1af95e17eeda73722ad08c0e8d
MD5 e3dcae5ee7ee62e603d2a37128861468
SHA1 c68f71703f544ec31d1670c09a597c06c827fb46
SHA512 f21cd0348762fd711c8de4cf56c98f7d9517856ed1f4f00f9ce62740bd26ee64943f5752132b459476dfa05a777fa2f5f5a5bd4dbfff0456a13b059642fe4d1c
SSDEEP 12288:WQtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kaA:ZtCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-ES0V0.tmp\file.tmp
Size 696KB
SHA256 b1aa9fab8bd7c68246c60587cda7709166be3c1af95e17eeda73722ad08c0e8d
MD5 e3dcae5ee7ee62e603d2a37128861468
SHA1 c68f71703f544ec31d1670c09a597c06c827fb46
SHA512 f21cd0348762fd711c8de4cf56c98f7d9517856ed1f4f00f9ce62740bd26ee64943f5752132b459476dfa05a777fa2f5f5a5bd4dbfff0456a13b059642fe4d1c
SSDEEP 12288:WQtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kaA:ZtCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

o8uEaEHpJDS.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\o8uEaEHpJDS.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

finalrecovery.exe

Path \Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
Size 2.1MB
SHA256 18dff6d4fea86f1478c7ba6bdae1e7f005a66a9bd2e043bbab915fdf2e671ee2
MD5 3353a94dda35f0ad9ed6e0ebfc0f3b0f
SHA1 8b205003c56140376243da0a4ce63d1009e04dcf
SHA512 50028fdbcaaa5d84bf1a066ac0f21f97259fa280801fcbaed49ea94038aab1b234d835bc84b29fdbe48b0e459fd3b7a0e4de8deb6b530c502ced506f6e487691
SSDEEP 24576:6kDWyhB+YNYmKi8d8kJt6EK2td4580jCm+E1tBEUKrY2ACi2GJ3rhaUDUVnPhD:NjPmTh45Ok9KMp2SUdPhD
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-ES0V0.tmp\file.tmp
Size 696KB
SHA256 b1aa9fab8bd7c68246c60587cda7709166be3c1af95e17eeda73722ad08c0e8d
MD5 e3dcae5ee7ee62e603d2a37128861468
SHA1 c68f71703f544ec31d1670c09a597c06c827fb46
SHA512 f21cd0348762fd711c8de4cf56c98f7d9517856ed1f4f00f9ce62740bd26ee64943f5752132b459476dfa05a777fa2f5f5a5bd4dbfff0456a13b059642fe4d1c
SSDEEP 12288:WQtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kaA:ZtCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

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

Submit Download

_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-HUBFQ.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-HUBFQ.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

o8uEaEHpJDS.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\o8uEaEHpJDS.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/872-55-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/872-68-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/872-54-0x0000000075B41000-0x0000000075B43000-memory.dmp

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memory/872-87-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/916-70-0x0000000003650000-0x0000000004668000-memory.dmp

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memory/916-77-0x0000000003650000-0x0000000004668000-memory.dmp

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memory/1076-71-0x0000000000400000-0x0000000001418000-memory.dmp

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memory/1076-78-0x0000000000400000-0x0000000001418000-memory.dmp

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memory/1076-79-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1076-83-0x0000000000400000-0x0000000001418000-memory.dmp

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memory/1076-73-0x0000000000400000-0x0000000001418000-memory.dmp

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memory/1076-86-0x0000000000400000-0x0000000001418000-memory.dmp

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memory/1076-72-0x0000000000400000-0x0000000001418000-memory.dmp

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