gcleaner | a2a37ad2a901cf40183e8bccecf3db89409cfd7561e7c7319a20cf62cf9ea6d3

Analysis

max time kernel
59s
max time network
60s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
19/01/2023, 09:43

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General

Target
file.exe
Size 1.9MB
Sample230119-lpw85sff46
SHA256 a2a37ad2a901cf40183e8bccecf3db89409cfd7561e7c7319a20cf62cf9ea6d3
MD5 55f1ef71b7be1b02625af44251e0cd25
SHA1 9e3b3db4cc91b8911dde6ffbf0c6a9ff4d510bef
SHA512 9b417006680ef5f5fa25db985081eaec6e5cbd48991b27d93010c16b1bc1871c4d40a376fcb1d9f3ebc46a6e355085fd666fd2b739302cc8583a8c69cecd16c3
SSDEEP 49152:1kWVZls7Y3KqePgvYhqCkT3bYGzEchlAL6r:xVPS2KqsJwCrqlAL6r
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
2012	file.tmp
1324	finalrecovery.exe
1632	IvtmyX.exe

Loads dropped DLL 6 IoCs

pid	Process
1244	file.exe
2012	file.tmp
2012	file.tmp
2012	file.tmp
2012	file.tmp
1324	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 opened for modification	C:\Program Files (x86)\FeusoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\is-I8716.tmp	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\is-LKSM5.tmp	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\is-C429D.tmp	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\is-MH5SV.tmp	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\data\is-RK5UV.tmp	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FeusoftFR\FinalRecovery\is-39G15.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FeusoftFR\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
1068	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1324	finalrecovery.exe
1324	finalrecovery.exe
1324	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1068	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 1244 wrote to memory of 2012	1244	file.exe	28
PID 2012 wrote to memory of 1324	2012	file.tmp	29
PID 2012 wrote to memory of 1324	2012	file.tmp	29
PID 2012 wrote to memory of 1324	2012	file.tmp	29
PID 2012 wrote to memory of 1324	2012	file.tmp	29
PID 1324 wrote to memory of 1632	1324	finalrecovery.exe	30
PID 1324 wrote to memory of 1632	1324	finalrecovery.exe	30
PID 1324 wrote to memory of 1632	1324	finalrecovery.exe	30
PID 1324 wrote to memory of 1632	1324	finalrecovery.exe	30
PID 1324 wrote to memory of 288	1324	finalrecovery.exe	33
PID 1324 wrote to memory of 288	1324	finalrecovery.exe	33
PID 1324 wrote to memory of 288	1324	finalrecovery.exe	33
PID 1324 wrote to memory of 288	1324	finalrecovery.exe	33
PID 288 wrote to memory of 1068	288	cmd.exe	35
PID 288 wrote to memory of 1068	288	cmd.exe	35
PID 288 wrote to memory of 1068	288	cmd.exe	35
PID 288 wrote to memory of 1068	288	cmd.exe	35

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:1244
- C:\Users\Admin\AppData\Local\Temp\is-URPF6.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-URPF6.tmp\file.tmp" /SL5="$70124,1692241,144896,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:2012
- - C:\Program Files (x86)\FeusoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FeusoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1324
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\IvtmyX.exe
      4⤵
      Executes dropped EXE
      PID:1632
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FeusoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:288
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1068

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)\FeusoftFR\FinalRecovery\finalrecovery.exe
Size 1.4MB
SHA256 ca7c97457f10fd7f28f238db733b6a2fec95890308e4146c64ac20dfeb3acd87
MD5 0b78d7c612c086987c56fd65362571fb
SHA1 0b6d7e2166fe2fa071eebc696ea6ce1e5a3d34fa
SHA512 24b61eef17295e3785a039ae76d22f1370f13369c6179c9e0de298c91268838773ff079a8dd63e2a89c9d3b001bd0fbc3a076174fb8f0a876532f8e360b6f003
SSDEEP 24576:nerdD8fHv113rVOsaIvufnXUhm/xYLUYsqEUY4dDgpawlLwEAF1BD:XHb98LxPqZfkk19
MD5 SHA1 SHA512 SSDEEP

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finalrecovery.exe

Path C:\Program Files (x86)\FeusoftFR\FinalRecovery\finalrecovery.exe
Size 1.4MB
SHA256 ca7c97457f10fd7f28f238db733b6a2fec95890308e4146c64ac20dfeb3acd87
MD5 0b78d7c612c086987c56fd65362571fb
SHA1 0b6d7e2166fe2fa071eebc696ea6ce1e5a3d34fa
SHA512 24b61eef17295e3785a039ae76d22f1370f13369c6179c9e0de298c91268838773ff079a8dd63e2a89c9d3b001bd0fbc3a076174fb8f0a876532f8e360b6f003
SSDEEP 24576:nerdD8fHv113rVOsaIvufnXUhm/xYLUYsqEUY4dDgpawlLwEAF1BD:XHb98LxPqZfkk19
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-URPF6.tmp\file.tmp
Size 784KB
SHA256 a8e2580185249ed570f420e04af19611eaad9edc5e19f27d059e5c60401f27d2
MD5 44895a64cc609d108a450b3a5db9ec65
SHA1 da298995b519740e85f9b2b248329a6aabb22d43
SHA512 21d4191356e974e4b27df78d3f16b4a64ecbb5f81aeabbd6978761814650c40635fd1f0e2936f2a4fd508614c7f3e3173f0a38ef95d336f6cc8e95ee5ed55c8a
SSDEEP 24576:LtCUA4arPEn37TzH7A6nw9yzeESUFWHc7Km/yXEx9Ub:LkdrP837TzH7A6nV7FMcV32
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-URPF6.tmp\file.tmp
Size 784KB
SHA256 a8e2580185249ed570f420e04af19611eaad9edc5e19f27d059e5c60401f27d2
MD5 44895a64cc609d108a450b3a5db9ec65
SHA1 da298995b519740e85f9b2b248329a6aabb22d43
SHA512 21d4191356e974e4b27df78d3f16b4a64ecbb5f81aeabbd6978761814650c40635fd1f0e2936f2a4fd508614c7f3e3173f0a38ef95d336f6cc8e95ee5ed55c8a
SSDEEP 24576:LtCUA4arPEn37TzH7A6nw9yzeESUFWHc7Km/yXEx9Ub:LkdrP837TzH7A6nV7FMcV32
MD5 SHA1 SHA512 SSDEEP

Submit Download

IvtmyX.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\IvtmyX.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)\FeusoftFR\FinalRecovery\finalrecovery.exe
Size 1.4MB
SHA256 ca7c97457f10fd7f28f238db733b6a2fec95890308e4146c64ac20dfeb3acd87
MD5 0b78d7c612c086987c56fd65362571fb
SHA1 0b6d7e2166fe2fa071eebc696ea6ce1e5a3d34fa
SHA512 24b61eef17295e3785a039ae76d22f1370f13369c6179c9e0de298c91268838773ff079a8dd63e2a89c9d3b001bd0fbc3a076174fb8f0a876532f8e360b6f003
SSDEEP 24576:nerdD8fHv113rVOsaIvufnXUhm/xYLUYsqEUY4dDgpawlLwEAF1BD:XHb98LxPqZfkk19
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-TA7ER.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-TA7ER.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-TA7ER.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

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-URPF6.tmp\file.tmp
Size 784KB
SHA256 a8e2580185249ed570f420e04af19611eaad9edc5e19f27d059e5c60401f27d2
MD5 44895a64cc609d108a450b3a5db9ec65
SHA1 da298995b519740e85f9b2b248329a6aabb22d43
SHA512 21d4191356e974e4b27df78d3f16b4a64ecbb5f81aeabbd6978761814650c40635fd1f0e2936f2a4fd508614c7f3e3173f0a38ef95d336f6cc8e95ee5ed55c8a
SSDEEP 24576:LtCUA4arPEn37TzH7A6nw9yzeESUFWHc7Km/yXEx9Ub:LkdrP837TzH7A6nV7FMcV32
MD5 SHA1 SHA512 SSDEEP

Submit Download

IvtmyX.exe

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

Submit Download

memory/1244-69-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/1244-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

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memory/1244-55-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/1244-86-0x0000000000400000-0x000000000042A000-memory.dmp

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memory/1324-71-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/1324-73-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/1324-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1324-81-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/1324-82-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/1324-72-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/1324-85-0x0000000000400000-0x0000000001368000-memory.dmp

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memory/2012-80-0x00000000035D0000-0x0000000004538000-memory.dmp

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memory/2012-70-0x00000000035D0000-0x0000000004538000-memory.dmp

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