gcleaner | f936e807ddb4d31646722eb154887b3dfcf4d638b8003c91ea47b13712cf5aeb

Analysis

max time kernel
72s
max time network
75s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-01-2023 10:17

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General

Target

file.exe
Size

1.7MB
MD5

251acc55e9394b864085c1946eefe8a3
SHA1

382a373cf244e6c69d1f511931fb84c7dd7020bc
SHA256

f936e807ddb4d31646722eb154887b3dfcf4d638b8003c91ea47b13712cf5aeb
SHA512

cb79153b26efcdbc6351a09645e4e676f50be646c29f573e4a73b6be2490f2208802cc5c9e67a16afe17e709fd541d76409c5c3053dee7520642602cc5394072
SSDEEP

49152:Zbcs2aYQjec2Ng9HfutZQBpRAGoSw5ULCgv2MR:tcZaxecGg9HEZQBpRDeEv2MR

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

Processes:

file.tmpfinalrecovery.exehxlpcFC.exe

pid process

980 file.tmp
1792 finalrecovery.exe
1888 hxlpcFC.exe
Loads dropped DLL 6 IoCs

Processes:

file.exefile.tmpfinalrecovery.exe

pid process

1476 file.exe
980 file.tmp
980 file.tmp
980 file.tmp
980 file.tmp
1792 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

pid	process
980	file.tmp
1792	finalrecovery.exe
1888	hxlpcFC.exe

pid	process
1476	file.exe
980	file.tmp
980	file.tmp
980	file.tmp
980	file.tmp
1792	finalrecovery.exe

Drops file in Program Files directory 9 IoCs

Processes:

file.tmp

description	ioc	process
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-H5G6D.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-MMUGV.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\data\is-O9MKN.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FgasoftFR\FinalRecovery\unins000.dat	file.tmp
File opened for modification	C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-DL0D8.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-JRTDO.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-5D0I2.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

Processes:

taskkill.exe

pid process

1956 taskkill.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

finalrecovery.exe

pid process

1792 finalrecovery.exe
1792 finalrecovery.exe
1792 finalrecovery.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1956 taskkill.exe

pid	process
1956	taskkill.exe

pid	process
1792	finalrecovery.exe
1792	finalrecovery.exe
1792	finalrecovery.exe

description	pid	process
Token: SeDebugPrivilege	1956	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

file.exefile.tmpfinalrecovery.execmd.exe

description	pid	process	target process
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 1476 wrote to memory of 980	1476	file.exe	file.tmp
PID 980 wrote to memory of 1792	980	file.tmp	finalrecovery.exe
PID 980 wrote to memory of 1792	980	file.tmp	finalrecovery.exe
PID 980 wrote to memory of 1792	980	file.tmp	finalrecovery.exe
PID 980 wrote to memory of 1792	980	file.tmp	finalrecovery.exe
PID 1792 wrote to memory of 1888	1792	finalrecovery.exe	hxlpcFC.exe
PID 1792 wrote to memory of 1888	1792	finalrecovery.exe	hxlpcFC.exe
PID 1792 wrote to memory of 1888	1792	finalrecovery.exe	hxlpcFC.exe
PID 1792 wrote to memory of 1888	1792	finalrecovery.exe	hxlpcFC.exe
PID 1792 wrote to memory of 852	1792	finalrecovery.exe	cmd.exe
PID 1792 wrote to memory of 852	1792	finalrecovery.exe	cmd.exe
PID 1792 wrote to memory of 852	1792	finalrecovery.exe	cmd.exe
PID 1792 wrote to memory of 852	1792	finalrecovery.exe	cmd.exe
PID 852 wrote to memory of 1956	852	cmd.exe	taskkill.exe
PID 852 wrote to memory of 1956	852	cmd.exe	taskkill.exe
PID 852 wrote to memory of 1956	852	cmd.exe	taskkill.exe
PID 852 wrote to memory of 1956	852	cmd.exe	taskkill.exe

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:1476

C:\Users\Admin\AppData\Local\Temp\is-SS28C.tmp\file.tmp
"C:\Users\Admin\AppData\Local\Temp\is-SS28C.tmp\file.tmp" /SL5="$70022,1539093,54272,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:980

C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe
"C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1792

C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\hxlpcFC.exe
4⤵
- Executes dropped EXE
PID:1888

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:852

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "finalrecovery.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe
Filesize
1.3MB

MD5
047a08213caf2eff80eb4a7af5f4a03c

SHA1
8399d90eeb0f0f8967f16bb58ef7f1d8115c7a0a

SHA256
dc29d998f451b3ef030ac184faa5099f323e27e151fffbdcf710707c37e36be9

SHA512
78212eb0c61e6cafa8bbb395fefbd59e0bfb5f82e298a6d80bd6de851787244355f0677cdba049e25785196219e988f9a6c96ed178529d79fc78f056e52c850c

Download Submit
C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe
Filesize
1.3MB

MD5
047a08213caf2eff80eb4a7af5f4a03c

SHA1
8399d90eeb0f0f8967f16bb58ef7f1d8115c7a0a

SHA256
dc29d998f451b3ef030ac184faa5099f323e27e151fffbdcf710707c37e36be9

SHA512
78212eb0c61e6cafa8bbb395fefbd59e0bfb5f82e298a6d80bd6de851787244355f0677cdba049e25785196219e988f9a6c96ed178529d79fc78f056e52c850c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SS28C.tmp\file.tmp
Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SS28C.tmp\file.tmp
Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\hxlpcFC.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe
Filesize
1.3MB

MD5
047a08213caf2eff80eb4a7af5f4a03c

SHA1
8399d90eeb0f0f8967f16bb58ef7f1d8115c7a0a

SHA256
dc29d998f451b3ef030ac184faa5099f323e27e151fffbdcf710707c37e36be9

SHA512
78212eb0c61e6cafa8bbb395fefbd59e0bfb5f82e298a6d80bd6de851787244355f0677cdba049e25785196219e988f9a6c96ed178529d79fc78f056e52c850c

Download Submit
\Users\Admin\AppData\Local\Temp\is-ACG3Q.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-ACG3Q.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-ACG3Q.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-SS28C.tmp\file.tmp
Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\hxlpcFC.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/852-83-0x0000000000000000-mapping.dmp

Download
memory/980-58-0x0000000000000000-mapping.dmp

Download
memory/980-69-0x00000000035B0000-0x00000000044F4000-memory.dmp

Filesize
15.3MB

Download
memory/980-73-0x00000000035B0000-0x00000000044F4000-memory.dmp

Filesize
15.3MB

Download
memory/1476-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-86-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

Filesize
8KB

Download
memory/1792-74-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-75-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-79-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1792-82-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-71-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-85-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-70-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/1792-66-0x0000000000000000-mapping.dmp

Download
memory/1888-77-0x0000000000000000-mapping.dmp

Download
memory/1956-84-0x0000000000000000-mapping.dmp

Download