gcleaner | cb857dfdd1d7bbec2b68b6e1a5317d8f12169acba56f281caf6f06d7ae6506d1

General

Target

file.exe
Size

1.7MB
MD5

dc5a1fc5015c1d6f7559751fcc51da0b
SHA1

4d1e641f1857df03c1debb14e818ae2a5a329f8f
SHA256

cb857dfdd1d7bbec2b68b6e1a5317d8f12169acba56f281caf6f06d7ae6506d1
SHA512

d29223475f7d8e04ea08af9942436604b5d42583c3b24afdec1add352c39cd9680a17371640fcd2f7b3aa3ebdf4b79d74d12b26916a290f208f04e0bc46e6806
SSDEEP

24576:Z3QqaseyLaCmqJxoqtAQTazKxa7SOf7LnL42WCe6Cyrd+rOv7XNnbciEeLC15wvV:Zdr13e7ZDs2K6CyGOvpblEeLCgv2MR

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

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.exeKlR0OD7ApTcgzw.exe

pid process

2204 file.tmp
3876 finalrecovery.exe
4980 KlR0OD7ApTcgzw.exe

pid	process
2204	file.tmp
3876	finalrecovery.exe
4980	KlR0OD7ApTcgzw.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

Processes:

finalrecovery.exe

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

Processes:

file.tmp

pid process

2204 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

pid	process
2204	file.tmp

Drops file in Program Files directory 9 IoCs

Processes:

file.tmp

description	ioc	process
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\data\is-9M34E.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-PPPK7.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-6AK23.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-S2C3L.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-GFFOO.tmp	file.tmp
File created	C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-886NN.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

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

3168 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

finalrecovery.exe

pid process

3876 finalrecovery.exe
3876 finalrecovery.exe
3876 finalrecovery.exe
3876 finalrecovery.exe
3876 finalrecovery.exe
3876 finalrecovery.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3168 taskkill.exe

pid	process
3168	taskkill.exe

pid	process
3876	finalrecovery.exe
3876	finalrecovery.exe
3876	finalrecovery.exe
3876	finalrecovery.exe
3876	finalrecovery.exe
3876	finalrecovery.exe

description	pid	process
Token: SeDebugPrivilege	3168	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exefile.tmpfinalrecovery.execmd.exe

description	pid	process	target process
PID 2620 wrote to memory of 2204	2620	file.exe	file.tmp
PID 2620 wrote to memory of 2204	2620	file.exe	file.tmp
PID 2620 wrote to memory of 2204	2620	file.exe	file.tmp
PID 2204 wrote to memory of 3876	2204	file.tmp	finalrecovery.exe
PID 2204 wrote to memory of 3876	2204	file.tmp	finalrecovery.exe
PID 2204 wrote to memory of 3876	2204	file.tmp	finalrecovery.exe
PID 3876 wrote to memory of 4980	3876	finalrecovery.exe	KlR0OD7ApTcgzw.exe
PID 3876 wrote to memory of 4980	3876	finalrecovery.exe	KlR0OD7ApTcgzw.exe
PID 3876 wrote to memory of 4980	3876	finalrecovery.exe	KlR0OD7ApTcgzw.exe
PID 3876 wrote to memory of 5072	3876	finalrecovery.exe	cmd.exe
PID 3876 wrote to memory of 5072	3876	finalrecovery.exe	cmd.exe
PID 3876 wrote to memory of 5072	3876	finalrecovery.exe	cmd.exe
PID 5072 wrote to memory of 3168	5072	cmd.exe	taskkill.exe
PID 5072 wrote to memory of 3168	5072	cmd.exe	taskkill.exe
PID 5072 wrote to memory of 3168	5072	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2620

C:\Users\Admin\AppData\Local\Temp\is-K7DA2.tmp\file.tmp
"C:\Users\Admin\AppData\Local\Temp\is-K7DA2.tmp\file.tmp" /SL5="$601D0,1565591,54272,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:2204

C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe
"C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3876

C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\KlR0OD7ApTcgzw.exe
4⤵
- Executes dropped EXE
PID:4980

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:5072

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "finalrecovery.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3168

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

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

MD5
c92d362dff0aafd4aacd078ed0e08ce3

SHA1
2b2176d1b88eb8afe3459172c7d82bcc3c5f0247

SHA256
394381c838646d34304a56c35493b1caea679bbb79e149336faaa6288614358b

SHA512
96f3cde80de1711c6a4d6668ee6dd3296b8c9abd093015cfd98d7c938c8524b98361c3255dacfb11e685c6c89499c9678513ca15d33309678be449ee6a8b1635

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

MD5
c92d362dff0aafd4aacd078ed0e08ce3

SHA1
2b2176d1b88eb8afe3459172c7d82bcc3c5f0247

SHA256
394381c838646d34304a56c35493b1caea679bbb79e149336faaa6288614358b

SHA512
96f3cde80de1711c6a4d6668ee6dd3296b8c9abd093015cfd98d7c938c8524b98361c3255dacfb11e685c6c89499c9678513ca15d33309678be449ee6a8b1635

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BTE02.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-K7DA2.tmp\file.tmp
Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-K7DA2.tmp\file.tmp
Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\KlR0OD7ApTcgzw.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\KlR0OD7ApTcgzw.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/2204-135-0x0000000000000000-mapping.dmp

Download
memory/2620-156-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2620-132-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2620-151-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2620-134-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3168-154-0x0000000000000000-mapping.dmp

Download
memory/3876-142-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/3876-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/3876-144-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/3876-152-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/3876-143-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/3876-155-0x0000000000400000-0x0000000001344000-memory.dmp

Filesize
15.3MB

Download
memory/3876-139-0x0000000000000000-mapping.dmp

Download
memory/4980-145-0x0000000000000000-mapping.dmp

Download
memory/5072-153-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads