gcleaner | 201679dcd0c2c86da6e535a633ddea6e89ad65dd1d2cc413b34a7e686dadbfbd

Analysis

max time kernel
153s
max time network
166s
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, 22:32

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General

Target
file.exe
Size 1.7MB
Sample230116-2fynlsee93
SHA256 201679dcd0c2c86da6e535a633ddea6e89ad65dd1d2cc413b34a7e686dadbfbd
MD5 7f99509824297d78e00d1734f58c4a1e
SHA1 054ffa2d7151a2993511ff6a9bc8dea8be24f1b7
SHA512 81633253f3b4611f95c5fbabe92041df11bd2cac0fd7fad73058cb0dfc0c72596565fc83746b71ea380d0bf370f2c1bce63b95f10e76f0cf1929715201d41816
SSDEEP 24576:m3XsJ7xy/joMu08ByBQZegTJssORnpGXM+Jv1HiEKHsN/STjwuJkCWEkNBoMXE5x:msJKEAMCUZ5UEIvE5vBbXsQ1GTj
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
1428	file.tmp
2840	finalrecovery.exe
4924	2Ot7O3MwFrZ.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 1 IoCs

pid	Process
1428	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\is-9A051.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-I3VLR.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-JHAMM.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-D3796.tmp	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\data\is-0UPCU.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\unins000.dat	file.tmp
File created	C:\Program Files (x86)\MeetsoftFR\FinalRecovery\is-43PH4.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
3376	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2840	finalrecovery.exe
2840	finalrecovery.exe
2840	finalrecovery.exe
2840	finalrecovery.exe
2840	finalrecovery.exe
2840	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 1428	5012	file.exe	80
PID 5012 wrote to memory of 1428	5012	file.exe	80
PID 5012 wrote to memory of 1428	5012	file.exe	80
PID 1428 wrote to memory of 2840	1428	file.tmp	81
PID 1428 wrote to memory of 2840	1428	file.tmp	81
PID 1428 wrote to memory of 2840	1428	file.tmp	81
PID 2840 wrote to memory of 4924	2840	finalrecovery.exe	82
PID 2840 wrote to memory of 4924	2840	finalrecovery.exe	82
PID 2840 wrote to memory of 4924	2840	finalrecovery.exe	82
PID 2840 wrote to memory of 5112	2840	finalrecovery.exe	84
PID 2840 wrote to memory of 5112	2840	finalrecovery.exe	84
PID 2840 wrote to memory of 5112	2840	finalrecovery.exe	84
PID 5112 wrote to memory of 3376	5112	cmd.exe	86
PID 5112 wrote to memory of 3376	5112	cmd.exe	86
PID 5112 wrote to memory of 3376	5112	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\is-K7IEL.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-K7IEL.tmp\file.tmp" /SL5="$801C4,1575421,54272,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:1428
- - 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:2840
  - - C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\2Ot7O3MwFrZ.exe
      4⤵
      Executes dropped EXE
      PID:4924
  - - 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:5112
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3376

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 c07dc16d2d48430a45aab7023c369033171f5e24647320503a4deb85fe876639
MD5 17ae85eb8901fdac02dc1a94495b896d
SHA1 5bebdc9e92aeb1fa17834f44e0847081a8e5f1fd
SHA512 e62feb58e8070eac86ee685c1f5e5e3c4c69b7c6aa2eaa73706a0f269c726927431e229dea86c027b6a129c6d7d28fc8b834b96f1327352ff2cd7f063d8f4437
SSDEEP 24576:Ugp64+xG4QM+/sE9i8d8kJt6EK2td457cSJE8EzA3ZpqmQkv4ptqt:n+RHmTh457Xqo
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\MeetsoftFR\FinalRecovery\finalrecovery.exe
Size 1.9MB
SHA256 c07dc16d2d48430a45aab7023c369033171f5e24647320503a4deb85fe876639
MD5 17ae85eb8901fdac02dc1a94495b896d
SHA1 5bebdc9e92aeb1fa17834f44e0847081a8e5f1fd
SHA512 e62feb58e8070eac86ee685c1f5e5e3c4c69b7c6aa2eaa73706a0f269c726927431e229dea86c027b6a129c6d7d28fc8b834b96f1327352ff2cd7f063d8f4437
SSDEEP 24576:Ugp64+xG4QM+/sE9i8d8kJt6EK2td457cSJE8EzA3ZpqmQkv4ptqt:n+RHmTh457Xqo
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-677R9.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-K7IEL.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-K7IEL.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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2Ot7O3MwFrZ.exe

Path C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\2Ot7O3MwFrZ.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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2Ot7O3MwFrZ.exe

Path C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\2Ot7O3MwFrZ.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/2840-143-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/2840-142-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/2840-147-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/2840-152-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/2840-155-0x0000000000400000-0x00000000013E6000-memory.dmp

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memory/5012-132-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/5012-137-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/5012-151-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/5012-156-0x0000000000400000-0x0000000000414000-memory.dmp

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