gcleaner | ddc68ea202879d306ef0e840d6c09b922c02b2c07c6f606705c42a592eb577b8

Analysis

max time kernel
75s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21/01/2023, 17:31

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General

Target
file.exe
Size 1.7MB
Sample230121-v3p7esdb83
SHA256 ddc68ea202879d306ef0e840d6c09b922c02b2c07c6f606705c42a592eb577b8
MD5 4c46987e33a8471945bc7f95834be1fc
SHA1 a9d5d2b419164878629aca9f0db429ff16a3cc91
SHA512 ffdc696e7be455d5b0980de012834cfada4a9b827c397bd15060434bd36f1b0fb1eace7382467b0d199bf831af6f90095c8055c4d8b4561db52fddd04139983e
SSDEEP 49152:qlLZIM9Oht+lo8cA6CiM9WhCGYKK7kc7EXM:OLZIMkL+l6hgtGYKqXEc
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
2500	file.tmp
4140	finalrecovery.exe
1060	0MNIq8Y3c.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
2500	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)\FevsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\is-OTH3S.tmp	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\is-E6KJ1.tmp	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\is-QNU62.tmp	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\is-NGF9E.tmp	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\is-71IFK.tmp	file.tmp
File created	C:\Program Files (x86)\FevsoftFR\FinalRecovery\data\is-A4EOQ.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FevsoftFR\FinalRecovery\unins000.dat	file.tmp
File opened for modification	C:\Program Files (x86)\FevsoftFR\FinalRecovery\finalrecovery.exe	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
2376	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4140	finalrecovery.exe
4140	finalrecovery.exe
4140	finalrecovery.exe
4140	finalrecovery.exe
4140	finalrecovery.exe
4140	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 2500	4656	file.exe	80
PID 4656 wrote to memory of 2500	4656	file.exe	80
PID 4656 wrote to memory of 2500	4656	file.exe	80
PID 2500 wrote to memory of 4140	2500	file.tmp	81
PID 2500 wrote to memory of 4140	2500	file.tmp	81
PID 2500 wrote to memory of 4140	2500	file.tmp	81
PID 4140 wrote to memory of 1060	4140	finalrecovery.exe	82
PID 4140 wrote to memory of 1060	4140	finalrecovery.exe	82
PID 4140 wrote to memory of 1060	4140	finalrecovery.exe	82
PID 4140 wrote to memory of 2396	4140	finalrecovery.exe	90
PID 4140 wrote to memory of 2396	4140	finalrecovery.exe	90
PID 4140 wrote to memory of 2396	4140	finalrecovery.exe	90
PID 2396 wrote to memory of 2376	2396	cmd.exe	92
PID 2396 wrote to memory of 2376	2396	cmd.exe	92
PID 2396 wrote to memory of 2376	2396	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Users\Admin\AppData\Local\Temp\is-BL9QM.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-BL9QM.tmp\file.tmp" /SL5="$D0046,1577806,51712,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:2500
- - C:\Program Files (x86)\FevsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FevsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4140
  - - C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\0MNIq8Y3c.exe
      4⤵
      Executes dropped EXE
      PID:1060
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FevsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2396
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2376

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)\FevsoftFR\FinalRecovery\finalrecovery.exe
Size 1.4MB
SHA256 99b7adf7901d8498676c2d6331136f1ff0d6cd5de11acaf0161ef79be2c5f9aa
MD5 a050cc78cbcd8ff3d30ba543efd5e7e0
SHA1 f5a694b5496b81d12e3eb8041d3e70b267687506
SHA512 e157223b762f511e676b939d41cb65cf0bdd5e931b162d333ba538b811a139ad924e26922cbd79414648ab049fc617d75bf34e81d24ed93b4069bc683888caba
SSDEEP 24576:/v6Tq07lMVOY24ymUbaIvufnXpm/Io8HdpUNHuf0PSkfKqEUoZpCprpo:npZk98ay9pi4jPWo
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\FevsoftFR\FinalRecovery\finalrecovery.exe
Size 1.4MB
SHA256 99b7adf7901d8498676c2d6331136f1ff0d6cd5de11acaf0161ef79be2c5f9aa
MD5 a050cc78cbcd8ff3d30ba543efd5e7e0
SHA1 f5a694b5496b81d12e3eb8041d3e70b267687506
SHA512 e157223b762f511e676b939d41cb65cf0bdd5e931b162d333ba538b811a139ad924e26922cbd79414648ab049fc617d75bf34e81d24ed93b4069bc683888caba
SSDEEP 24576:/v6Tq07lMVOY24ymUbaIvufnXpm/Io8HdpUNHuf0PSkfKqEUoZpCprpo:npZk98ay9pi4jPWo
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-2FEGG.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-BL9QM.tmp\file.tmp
Size 693KB
SHA256 a6b8cba5b41e661f6c6a7b85f7e9c6e8e21b8ef8337f9f2b831b6378aaeb8d8e
MD5 a33e05f848b0ae40f7cefbeeb403cacc
SHA1 c4c89490421a09b87562c0f20cad0f00c94e79f4
SHA512 1839cd87f4fef1b1b4c71d582854a66633418563bc33a8481b793fad5ced623e545aa8a6f03c88082bae5ed4df156dc8b3e3d2660871af946dc6badd6042f4e0
SSDEEP 12288:yQtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kO/:9tCUA4arPEn37TzH7A6nw9yzeESUFWHY
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-BL9QM.tmp\file.tmp
Size 693KB
SHA256 a6b8cba5b41e661f6c6a7b85f7e9c6e8e21b8ef8337f9f2b831b6378aaeb8d8e
MD5 a33e05f848b0ae40f7cefbeeb403cacc
SHA1 c4c89490421a09b87562c0f20cad0f00c94e79f4
SHA512 1839cd87f4fef1b1b4c71d582854a66633418563bc33a8481b793fad5ced623e545aa8a6f03c88082bae5ed4df156dc8b3e3d2660871af946dc6badd6042f4e0
SSDEEP 12288:yQtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kO/:9tCUA4arPEn37TzH7A6nw9yzeESUFWHY
MD5 SHA1 SHA512 SSDEEP

Submit Download

0MNIq8Y3c.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\0MNIq8Y3c.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

0MNIq8Y3c.exe

Path C:\Users\Admin\AppData\Roaming\{99cae5c0-1ab4-11ed-899c-806e6f6e6963}\0MNIq8Y3c.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/4140-148-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/4140-144-0x0000000000400000-0x000000000135D000-memory.dmp

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memory/4140-143-0x0000000000400000-0x000000000135D000-memory.dmp

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memory/4140-142-0x0000000000400000-0x000000000135D000-memory.dmp

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memory/4140-151-0x0000000000400000-0x000000000135D000-memory.dmp

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memory/4140-154-0x0000000000400000-0x000000000135D000-memory.dmp

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memory/4656-132-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4656-138-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4656-155-0x0000000000400000-0x0000000000414000-memory.dmp

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