gcleaner | 680c818404ece37b2422738b33665591c427ea03f59dbfa718c50316da5919c6

Analysis

max time kernel
142s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2023 08:17

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General

Target

aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe
Size

2.8MB
MD5

99b7bd2ac2336e3cc24645eebf6e92dd
SHA1

3c0e794075bd4d8b3f8ca5b710b6c3887eed4721
SHA256

aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b
SHA512

585ace5f5d3c9e48cde8d110ed879896c0c6a3be196188c2183960e67e63edb548464e862736f7bbdd9bee641b831c7104a9ff1b27da5598a3e8bb042a114f9d
SSDEEP

49152:AGgia//r+zFeuAZaBus5BlrKbMOygm+YKupfaKJwBRCrRH5EOQHjI5jRctznOKz:dgia/T+zYuA0us5BlSGgm+YKQfiBEDEx

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
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:

FRec312.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec312.exe
Executes dropped EXE 3 IoCs

Processes:

is-UM3R0.tmpFRec312.exeNvj4IS.exe

pid process

3488 is-UM3R0.tmp
5100 FRec312.exe
1648 Nvj4IS.exe
Loads dropped DLL 3 IoCs

Processes:

is-UM3R0.tmp

pid process

3488 is-UM3R0.tmp
3488 is-UM3R0.tmp
3488 is-UM3R0.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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	FRec312.exe

pid	process
3488	is-UM3R0.tmp
5100	FRec312.exe
1648	Nvj4IS.exe

pid	process
3488	is-UM3R0.tmp
3488	is-UM3R0.tmp
3488	is-UM3R0.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-UM3R0.tmp

description	ioc	process
File created	C:\Program Files (x86)\FITsoftFR\FRec312\is-NS18Q.tmp	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\is-FIMOK.tmp	is-UM3R0.tmp
File opened for modification	C:\Program Files (x86)\FITsoftFR\FRec312\unins000.dat	is-UM3R0.tmp
File opened for modification	C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\unins000.dat	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\is-K3MCP.tmp	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\is-35118.tmp	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\is-PVTVQ.tmp	is-UM3R0.tmp
File created	C:\Program Files (x86)\FITsoftFR\FRec312\data\is-S8EUU.tmp	is-UM3R0.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

1560 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec312.exe

pid process

5100 FRec312.exe
5100 FRec312.exe
5100 FRec312.exe
5100 FRec312.exe
5100 FRec312.exe
5100 FRec312.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1560 taskkill.exe

pid	process
1560	taskkill.exe

pid	process
5100	FRec312.exe
5100	FRec312.exe
5100	FRec312.exe
5100	FRec312.exe
5100	FRec312.exe
5100	FRec312.exe

description	pid	process
Token: SeDebugPrivilege	1560	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exeis-UM3R0.tmpFRec312.execmd.exe

description	pid	process	target process
PID 3376 wrote to memory of 3488	3376	aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe	is-UM3R0.tmp
PID 3376 wrote to memory of 3488	3376	aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe	is-UM3R0.tmp
PID 3376 wrote to memory of 3488	3376	aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe	is-UM3R0.tmp
PID 3488 wrote to memory of 5100	3488	is-UM3R0.tmp	FRec312.exe
PID 3488 wrote to memory of 5100	3488	is-UM3R0.tmp	FRec312.exe
PID 3488 wrote to memory of 5100	3488	is-UM3R0.tmp	FRec312.exe
PID 5100 wrote to memory of 1648	5100	FRec312.exe	Nvj4IS.exe
PID 5100 wrote to memory of 1648	5100	FRec312.exe	Nvj4IS.exe
PID 5100 wrote to memory of 1648	5100	FRec312.exe	Nvj4IS.exe
PID 5100 wrote to memory of 2684	5100	FRec312.exe	cmd.exe
PID 5100 wrote to memory of 2684	5100	FRec312.exe	cmd.exe
PID 5100 wrote to memory of 2684	5100	FRec312.exe	cmd.exe
PID 2684 wrote to memory of 1560	2684	cmd.exe	taskkill.exe
PID 2684 wrote to memory of 1560	2684	cmd.exe	taskkill.exe
PID 2684 wrote to memory of 1560	2684	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe
"C:\Users\Admin\AppData\Local\Temp\aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\is-LP4KV.tmp\is-UM3R0.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LP4KV.tmp\is-UM3R0.tmp" /SL4 $80034 "C:\Users\Admin\AppData\Local\Temp\aca031d307302bc878973a96767781e5d3e667df100699cde2d72a36bbfa614b.exe" 2733623 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3488
- - C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe
    "C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:5100
  - - C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Nvj4IS.exe
      4⤵
      Executes dropped EXE
      PID:1648
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec312.exe" /f & erase "C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2684
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec312.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1560

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

C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe

Filesize
3.1MB

MD5
53245ca1c73377dae25f6c2b30a7ae43

SHA1
1da7bacdd214d5cfb93b39b8a1c63b78b9390a41

SHA256
2f871ab6e65571e23d1f55d5cf17ee56335b4c7d6118bbfd031a4f58a301767e

SHA512
fe7bf77d6f66891c594e462c3de0ec6dd4d863345c23d7e6726d3812fbb8b62eeaaf6d05328876d10f13b404ff2dfcfe90f6873e9843b1ba00697822b153ba61

Download Submit
C:\Program Files (x86)\FITsoftFR\FRec312\FRec312.exe

Filesize
3.1MB

MD5
53245ca1c73377dae25f6c2b30a7ae43

SHA1
1da7bacdd214d5cfb93b39b8a1c63b78b9390a41

SHA256
2f871ab6e65571e23d1f55d5cf17ee56335b4c7d6118bbfd031a4f58a301767e

SHA512
fe7bf77d6f66891c594e462c3de0ec6dd4d863345c23d7e6726d3812fbb8b62eeaaf6d05328876d10f13b404ff2dfcfe90f6873e9843b1ba00697822b153ba61

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYL8D8JJ\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LP4KV.tmp\is-UM3R0.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LP4KV.tmp\is-UM3R0.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TLHN1.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TLHN1.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TLHN1.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Nvj4IS.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Nvj4IS.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/3376-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3376-185-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3376-205-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3488-186-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3488-204-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3488-156-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/5100-172-0x0000000000400000-0x0000000001515000-memory.dmp

Filesize
17.1MB

Download
memory/5100-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/5100-187-0x0000000000400000-0x0000000001515000-memory.dmp

Filesize
17.1MB

Download
memory/5100-171-0x0000000000400000-0x0000000001515000-memory.dmp

Filesize
17.1MB

Download
memory/5100-203-0x0000000000400000-0x0000000001515000-memory.dmp

Filesize
17.1MB

Download