gcleaner | c8aef64f800ccc4c6131c6a1cc61b5403dca2cc6d0f594e8541b3a0bb17eacb4

Analysis

max time kernel
137s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
16/01/2023, 21:17

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General

Target
file.exe
Size 1.7MB
Sample230116-z413jadf78
SHA256 c8aef64f800ccc4c6131c6a1cc61b5403dca2cc6d0f594e8541b3a0bb17eacb4
MD5 9b2736d3967acfecedbb3e02f78ce489
SHA1 ff7c78e90583715125bac5f2cc8f1eae12193724
SHA512 34f72e2a7601efa30e0c102ae968c9f3a715055d28ab4a163c97dbd85529c7685485279d8205d9ba2f95a4068daafaa4289b48093b5ff13965c76ea2ae97979c
SSDEEP 24576:m3R0zTI4Bg3aY2XYXgV+MSBSBlFLNYPeAZ8wqwhRkSr30RzuFIqpn5xj:mwg3aYlgV+TBSXtvMmA01GTj
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
1872	file.tmp
3952	finalrecovery.exe
4280	rlQl1y.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	finalrecovery.exe

Loads dropped DLL 1 IoCs

pid	Process
1872	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)\MeetsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-DF6VQ.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-KV82H.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-2FM69.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\data\is-7FRUO.tmp	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-98EFH.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-H1G8A.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\MeetsoftFR\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
2132	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3952	finalrecovery.exe
3952	finalrecovery.exe
3952	finalrecovery.exe
3952	finalrecovery.exe
3952	finalrecovery.exe
3952	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 1872	3208	file.exe	81
PID 3208 wrote to memory of 1872	3208	file.exe	81
PID 3208 wrote to memory of 1872	3208	file.exe	81
PID 1872 wrote to memory of 3952	1872	file.tmp	83
PID 1872 wrote to memory of 3952	1872	file.tmp	83
PID 1872 wrote to memory of 3952	1872	file.tmp	83
PID 3952 wrote to memory of 4280	3952	finalrecovery.exe	84
PID 3952 wrote to memory of 4280	3952	finalrecovery.exe	84
PID 3952 wrote to memory of 4280	3952	finalrecovery.exe	84
PID 3952 wrote to memory of 5064	3952	finalrecovery.exe	86
PID 3952 wrote to memory of 5064	3952	finalrecovery.exe	86
PID 3952 wrote to memory of 5064	3952	finalrecovery.exe	86
PID 5064 wrote to memory of 2132	5064	cmd.exe	88
PID 5064 wrote to memory of 2132	5064	cmd.exe	88
PID 5064 wrote to memory of 2132	5064	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3208
- C:\Users\Admin\AppData\Local\Temp\is-JDLTH.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-JDLTH.tmp\file.tmp" /SL5="$601F0,1563096,54272,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:1872
- - C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3952
  - - C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\rlQl1y.exe
      4⤵
      Executes dropped EXE
      PID:4280
  - - 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:5064
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2132

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 1.9MB
SHA256 60e703724591035d8fcd464fedfc70bea82fe92dae555b2e6f40d79af6d9beaf
MD5 9ffa6fa825f3960b9dbf49e66ffa3490
SHA1 251ce205b578a99379f5ed8552e4368996aeebd0
SHA512 4057dc21046f2b477bb27f1d9d9c9ab1ba86b03ce39132b40d5787812515f0daecc5c08285832e36a1158be0cc0df8fa79502a9e0d0b4443b08532fd89749a28
SSDEEP 24576:k9M6FxWUxabjw8QqJi8d8kJt6EK2td45ndjp8BD9NjeY/j5KxIXol:s+884mTh45JmBD9NllKxx
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
Size 1.9MB
SHA256 60e703724591035d8fcd464fedfc70bea82fe92dae555b2e6f40d79af6d9beaf
MD5 9ffa6fa825f3960b9dbf49e66ffa3490
SHA1 251ce205b578a99379f5ed8552e4368996aeebd0
SHA512 4057dc21046f2b477bb27f1d9d9c9ab1ba86b03ce39132b40d5787812515f0daecc5c08285832e36a1158be0cc0df8fa79502a9e0d0b4443b08532fd89749a28
SSDEEP 24576:k9M6FxWUxabjw8QqJi8d8kJt6EK2td45ndjp8BD9NjeY/j5KxIXol:s+884mTh45JmBD9NllKxx
MD5 SHA1 SHA512 SSDEEP

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file.tmp

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

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-JDLTH.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 C:\Users\Admin\AppData\Local\Temp\is-R1IFH.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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rlQl1y.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\rlQl1y.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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rlQl1y.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\rlQl1y.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/3208-138-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/3208-155-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/3208-132-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/3952-143-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/3952-147-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/3952-151-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/3952-142-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/3952-154-0x0000000000400000-0x00000000013E6000-memory.dmp

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