gcleaner | 84cc827150e0aeb82f1e7b4abd98332c49b45be6ac8f4df9fbd516633c452d0f

General

Target

f647eb51d409c5525721d38e61831544.exe
Size

2.4MB
MD5

f647eb51d409c5525721d38e61831544
SHA1

e100331dec22bbc0b630cd4c48513ef48bee566c
SHA256

84cc827150e0aeb82f1e7b4abd98332c49b45be6ac8f4df9fbd516633c452d0f
SHA512

85a8d52758fa214b6846e182c9caae365a9863be4e4caf42c125e4a6ab99bde68a1ee8ee40fed7a5473f24067681119bfd82cc1d50325b5d192199c5f9b0e405
SSDEEP

49152:EGlJfsQ1jp4ESZzT6kHTpFLLHBJhf+oOv3xxD0ux3V/ggflraoQ96Fw5dlLYp:5/F4EIOgtFP0rvxx5J7BQcyPYp

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
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:

FRec317.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation FRec317.exe
Executes dropped EXE 3 IoCs

Processes:

is-M5I7U.tmpFRec317.exeWC3PGqGRy.exe

pid process

2952 is-M5I7U.tmp
4672 FRec317.exe
4268 WC3PGqGRy.exe
Loads dropped DLL 1 IoCs

Processes:

is-M5I7U.tmp

pid process

2952 is-M5I7U.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	FRec317.exe

pid	process
2952	is-M5I7U.tmp
4672	FRec317.exe
4268	WC3PGqGRy.exe

pid	process
2952	is-M5I7U.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-M5I7U.tmp

description	ioc	process
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\is-N58EA.tmp	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\is-P761V.tmp	is-M5I7U.tmp
File opened for modification	C:\Program Files (x86)\FIYsoftFR\FRec317\FRec317.exe	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\is-TF4F0.tmp	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\is-TERCL.tmp	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\data\is-OETMI.tmp	is-M5I7U.tmp
File opened for modification	C:\Program Files (x86)\FIYsoftFR\FRec317\unins000.dat	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\unins000.dat	is-M5I7U.tmp
File created	C:\Program Files (x86)\FIYsoftFR\FRec317\is-9JUG7.tmp	is-M5I7U.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

1788 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec317.exe

pid process

4672 FRec317.exe
4672 FRec317.exe
4672 FRec317.exe
4672 FRec317.exe
4672 FRec317.exe
4672 FRec317.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1788 taskkill.exe

pid	process
1788	taskkill.exe

pid	process
4672	FRec317.exe
4672	FRec317.exe
4672	FRec317.exe
4672	FRec317.exe
4672	FRec317.exe
4672	FRec317.exe

description	pid	process
Token: SeDebugPrivilege	1788	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f647eb51d409c5525721d38e61831544.exeis-M5I7U.tmpFRec317.execmd.exe

description	pid	process	target process
PID 880 wrote to memory of 2952	880	f647eb51d409c5525721d38e61831544.exe	is-M5I7U.tmp
PID 880 wrote to memory of 2952	880	f647eb51d409c5525721d38e61831544.exe	is-M5I7U.tmp
PID 880 wrote to memory of 2952	880	f647eb51d409c5525721d38e61831544.exe	is-M5I7U.tmp
PID 2952 wrote to memory of 4672	2952	is-M5I7U.tmp	FRec317.exe
PID 2952 wrote to memory of 4672	2952	is-M5I7U.tmp	FRec317.exe
PID 2952 wrote to memory of 4672	2952	is-M5I7U.tmp	FRec317.exe
PID 4672 wrote to memory of 4268	4672	FRec317.exe	WC3PGqGRy.exe
PID 4672 wrote to memory of 4268	4672	FRec317.exe	WC3PGqGRy.exe
PID 4672 wrote to memory of 4268	4672	FRec317.exe	WC3PGqGRy.exe
PID 4672 wrote to memory of 1108	4672	FRec317.exe	cmd.exe
PID 4672 wrote to memory of 1108	4672	FRec317.exe	cmd.exe
PID 4672 wrote to memory of 1108	4672	FRec317.exe	cmd.exe
PID 1108 wrote to memory of 1788	1108	cmd.exe	taskkill.exe
PID 1108 wrote to memory of 1788	1108	cmd.exe	taskkill.exe
PID 1108 wrote to memory of 1788	1108	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\f647eb51d409c5525721d38e61831544.exe
"C:\Users\Admin\AppData\Local\Temp\f647eb51d409c5525721d38e61831544.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:880
- C:\Users\Admin\AppData\Local\Temp\is-OO4OM.tmp\is-M5I7U.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-OO4OM.tmp\is-M5I7U.tmp" /SL4 $8007E "C:\Users\Admin\AppData\Local\Temp\f647eb51d409c5525721d38e61831544.exe" 2307111 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Program Files (x86)\FIYsoftFR\FRec317\FRec317.exe
    "C:\Program Files (x86)\FIYsoftFR\FRec317\FRec317.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4672
  - - C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\WC3PGqGRy.exe
      4⤵
      Executes dropped EXE
      PID:4268
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec317.exe" /f & erase "C:\Program Files (x86)\FIYsoftFR\FRec317\FRec317.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1108
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec317.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1788

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)\FIYsoftFR\FRec317\FRec317.exe

Filesize
3.5MB

MD5
b2e550390a1562dc69ab873c1fb251ce

SHA1
e18d770546f4fda88715a8ffc20f13249b5b9b9d

SHA256
0a47f8a57420a2eef00dc30dde89bc54613f86596aedfc344ce5d18db10e5533

SHA512
76e8c52d94124eccdb66175fa63c7f5385ab671d9186125a230511dc76ff01165c5cf28fc87e9cdc8a547ca6c07bfdcc112094653e8c5e803ca02361950d9784

Download Submit
C:\Program Files (x86)\FIYsoftFR\FRec317\FRec317.exe

Filesize
3.5MB

MD5
b2e550390a1562dc69ab873c1fb251ce

SHA1
e18d770546f4fda88715a8ffc20f13249b5b9b9d

SHA256
0a47f8a57420a2eef00dc30dde89bc54613f86596aedfc344ce5d18db10e5533

SHA512
76e8c52d94124eccdb66175fa63c7f5385ab671d9186125a230511dc76ff01165c5cf28fc87e9cdc8a547ca6c07bfdcc112094653e8c5e803ca02361950d9784

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\K941J8ND\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OO4OM.tmp\is-M5I7U.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OO4OM.tmp\is-M5I7U.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\WC3PGqGRy.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\WC3PGqGRy.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/880-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/880-171-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/880-201-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2952-148-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download
memory/2952-179-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2952-181-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download
memory/2952-200-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4672-166-0x0000000000400000-0x0000000001579000-memory.dmp

Filesize
17.5MB

Download
memory/4672-199-0x0000000000400000-0x0000000001579000-memory.dmp

Filesize
17.5MB

Download
memory/4672-183-0x0000000000400000-0x0000000001579000-memory.dmp

Filesize
17.5MB

Download
memory/4672-175-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4672-165-0x0000000000400000-0x0000000001579000-memory.dmp

Filesize
17.5MB

Download

Analysis

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