gcleaner | 6b87a3e382cb0e719df236a464f4994625f88f6ac4391de3f13a6a74e5b9e648

General

Target

92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe
Size

1.8MB
MD5

f95522fba0aca73f67593e477c5ab33d
SHA1

f3d538e65efdd4b2e07dad9d2c37f82bbdfab637
SHA256

92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9
SHA512

430228e0a746910790d27ba1b62d6bf1ec7114a9084b7b23ba61baea53e0b05eb482d11f8647390477d896093088eef7a7890a3711b857df0ca815d3a19b53c6
SSDEEP

49152:okug+qTp1Icsv9wrefYfaWEawApeLajqOgkLCgv2MR:hug+omcs14e5WEazkqqOZv2MR

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

pid	Process
2976	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
5092	finalrecovery.exe
2740	jsrm1QrlI0rw.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	finalrecovery.exe

Loads dropped DLL 1 IoCs

pid	Process
2976	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.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 opened for modification	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\unins000.dat	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\is-J9MAT.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\is-C3JDG.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\is-28NUN.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File opened for modification	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\unins000.dat	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\is-RQOK0.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\is-TI45E.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
File created	C:\Program Files (x86)\FgbsoftFR\FinalRecovery\data\is-F0M9V.tmp	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.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
2844	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5092	finalrecovery.exe
5092	finalrecovery.exe
5092	finalrecovery.exe
5092	finalrecovery.exe
5092	finalrecovery.exe
5092	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 2976	5060	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe	81
PID 5060 wrote to memory of 2976	5060	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe	81
PID 5060 wrote to memory of 2976	5060	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe	81
PID 2976 wrote to memory of 5092	2976	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp	82
PID 2976 wrote to memory of 5092	2976	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp	82
PID 2976 wrote to memory of 5092	2976	92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp	82
PID 5092 wrote to memory of 2740	5092	finalrecovery.exe	83
PID 5092 wrote to memory of 2740	5092	finalrecovery.exe	83
PID 5092 wrote to memory of 2740	5092	finalrecovery.exe	83
PID 5092 wrote to memory of 4764	5092	finalrecovery.exe	91
PID 5092 wrote to memory of 4764	5092	finalrecovery.exe	91
PID 5092 wrote to memory of 4764	5092	finalrecovery.exe	91
PID 4764 wrote to memory of 2844	4764	cmd.exe	93
PID 4764 wrote to memory of 2844	4764	cmd.exe	93
PID 4764 wrote to memory of 2844	4764	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe
"C:\Users\Admin\AppData\Local\Temp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Local\Temp\is-1E9BB.tmp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1E9BB.tmp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp" /SL5="$70034,1635662,135168,C:\Users\Admin\AppData\Local\Temp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:5092
  - - C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\jsrm1QrlI0rw.exe
      4⤵
      Executes dropped EXE
      PID:2740
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4764
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe

Filesize
1.3MB

MD5
b6a539ea34a9f98d7955fb36b33ac0c2

SHA1
ca3b2ed6343e379d678e047d195fa50ace96b31e

SHA256
3ccbb1032a8b24b94b6df6c6b515e4d8bd3c3098221f99e414e2c9132c518be8

SHA512
9a23ef8331a08bb7265fea87b1fd946c942196ba3fdf1ab91f17a0213b99cdab5f4f05c98de0d3a9c8c45d4e4d831594a6882d82aee21ab5969bf9fec3ad033a

Download Submit
C:\Program Files (x86)\FgbsoftFR\FinalRecovery\finalrecovery.exe

Filesize
1.3MB

MD5
b6a539ea34a9f98d7955fb36b33ac0c2

SHA1
ca3b2ed6343e379d678e047d195fa50ace96b31e

SHA256
3ccbb1032a8b24b94b6df6c6b515e4d8bd3c3098221f99e414e2c9132c518be8

SHA512
9a23ef8331a08bb7265fea87b1fd946c942196ba3fdf1ab91f17a0213b99cdab5f4f05c98de0d3a9c8c45d4e4d831594a6882d82aee21ab5969bf9fec3ad033a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1E9BB.tmp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1E9BB.tmp\92a52eb7a00fd614dad7644ad2e05fbaf0c55875871e22c20dba7db17f2e82e9.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-A2A5I.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\jsrm1QrlI0rw.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\jsrm1QrlI0rw.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/5060-150-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5060-132-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5060-134-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5060-155-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5092-143-0x0000000000400000-0x0000000001348000-memory.dmp

Filesize
15.3MB

Download
memory/5092-142-0x0000000000400000-0x0000000001348000-memory.dmp

Filesize
15.3MB

Download
memory/5092-147-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/5092-151-0x0000000000400000-0x0000000001348000-memory.dmp

Filesize
15.3MB

Download
memory/5092-154-0x0000000000400000-0x0000000001348000-memory.dmp

Filesize
15.3MB

Download

Analysis

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