gcleaner | 541a0a654aaf401eb55c7a96daef2542d56c64331148b7a9680359eccc750469

Analysis

max time kernel
80s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2023 12:19

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General

Target

3671fefaea7820881fbe38ae64571809.exe
Size

2.8MB
MD5

3671fefaea7820881fbe38ae64571809
SHA1

bbeb62bbc94710a2cf5d20795c6efc3b2fc953df
SHA256

541a0a654aaf401eb55c7a96daef2542d56c64331148b7a9680359eccc750469
SHA512

16142f5a5b72b8f03af6014c2becc08657365d4af965cc4ba48fe318a927884385c1c10022b1d55d08722185e6d2f04462d7a58ffedf26e745adfa43460ba019
SSDEEP

49152:AGtvc9miqAeRj1YXxopMOH3JQ+xf/Ii1GH3HoVOUED3BGVx/Ma8+Kkw56zNOKz:dyURxT3W+xl1GXHyOZuBMT/kQ6zNOKz

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:

FRec39.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation FRec39.exe
Executes dropped EXE 3 IoCs

Processes:

is-1ME1V.tmpFRec39.exelCczdefZ4.exe

pid process

2020 is-1ME1V.tmp
1856 FRec39.exe
3840 lCczdefZ4.exe
Loads dropped DLL 3 IoCs

Processes:

is-1ME1V.tmp

pid process

2020 is-1ME1V.tmp
2020 is-1ME1V.tmp
2020 is-1ME1V.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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	FRec39.exe

pid	process
2020	is-1ME1V.tmp
1856	FRec39.exe
3840	lCczdefZ4.exe

pid	process
2020	is-1ME1V.tmp
2020	is-1ME1V.tmp
2020	is-1ME1V.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-1ME1V.tmp

description	ioc	process
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\unins000.dat	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\is-46EN0.tmp	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\is-GJE9I.tmp	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\data\is-JDLH5.tmp	is-1ME1V.tmp
File opened for modification	C:\Program Files (x86)\FIQsoftFR\FRec39\FRec39.exe	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\is-5N4TO.tmp	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\is-O846C.tmp	is-1ME1V.tmp
File created	C:\Program Files (x86)\FIQsoftFR\FRec39\is-7P28P.tmp	is-1ME1V.tmp
File opened for modification	C:\Program Files (x86)\FIQsoftFR\FRec39\unins000.dat	is-1ME1V.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

3280 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec39.exe

pid process

1856 FRec39.exe
1856 FRec39.exe
1856 FRec39.exe
1856 FRec39.exe
1856 FRec39.exe
1856 FRec39.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3280 taskkill.exe

pid	process
3280	taskkill.exe

pid	process
1856	FRec39.exe
1856	FRec39.exe
1856	FRec39.exe
1856	FRec39.exe
1856	FRec39.exe
1856	FRec39.exe

description	pid	process
Token: SeDebugPrivilege	3280	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

3671fefaea7820881fbe38ae64571809.exeis-1ME1V.tmpFRec39.execmd.exe

description	pid	process	target process
PID 4584 wrote to memory of 2020	4584	3671fefaea7820881fbe38ae64571809.exe	is-1ME1V.tmp
PID 4584 wrote to memory of 2020	4584	3671fefaea7820881fbe38ae64571809.exe	is-1ME1V.tmp
PID 4584 wrote to memory of 2020	4584	3671fefaea7820881fbe38ae64571809.exe	is-1ME1V.tmp
PID 2020 wrote to memory of 1856	2020	is-1ME1V.tmp	FRec39.exe
PID 2020 wrote to memory of 1856	2020	is-1ME1V.tmp	FRec39.exe
PID 2020 wrote to memory of 1856	2020	is-1ME1V.tmp	FRec39.exe
PID 1856 wrote to memory of 3840	1856	FRec39.exe	lCczdefZ4.exe
PID 1856 wrote to memory of 3840	1856	FRec39.exe	lCczdefZ4.exe
PID 1856 wrote to memory of 3840	1856	FRec39.exe	lCczdefZ4.exe
PID 1856 wrote to memory of 4152	1856	FRec39.exe	cmd.exe
PID 1856 wrote to memory of 4152	1856	FRec39.exe	cmd.exe
PID 1856 wrote to memory of 4152	1856	FRec39.exe	cmd.exe
PID 4152 wrote to memory of 3280	4152	cmd.exe	taskkill.exe
PID 4152 wrote to memory of 3280	4152	cmd.exe	taskkill.exe
PID 4152 wrote to memory of 3280	4152	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\3671fefaea7820881fbe38ae64571809.exe
"C:\Users\Admin\AppData\Local\Temp\3671fefaea7820881fbe38ae64571809.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Users\Admin\AppData\Local\Temp\is-SC9VB.tmp\is-1ME1V.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-SC9VB.tmp\is-1ME1V.tmp" /SL4 $6011A "C:\Users\Admin\AppData\Local\Temp\3671fefaea7820881fbe38ae64571809.exe" 2721681 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Program Files (x86)\FIQsoftFR\FRec39\FRec39.exe
    "C:\Program Files (x86)\FIQsoftFR\FRec39\FRec39.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\lCczdefZ4.exe
      4⤵
      Executes dropped EXE
      PID:3840
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec39.exe" /f & erase "C:\Program Files (x86)\FIQsoftFR\FRec39\FRec39.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4152
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec39.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3280

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)\FIQsoftFR\FRec39\FRec39.exe

Filesize
3.1MB

MD5
cc84ae108efe14adcd3130ba2e01027c

SHA1
4f264708a97167f98a06b4e6bbd7131e7fd2c91f

SHA256
a8c7c82de81f9061478fa3e6159798396a5799123efc98bd6397dde5948429d3

SHA512
a988ba63842f04352b96fde2a3117af69ef33111b227fc41ec4f2d6716f1454b5021ef5a936b9a548b8b233612c531b1ac8ea28b677e23d8dc141994d7149517

Download Submit
C:\Program Files (x86)\FIQsoftFR\FRec39\FRec39.exe

Filesize
3.1MB

MD5
cc84ae108efe14adcd3130ba2e01027c

SHA1
4f264708a97167f98a06b4e6bbd7131e7fd2c91f

SHA256
a8c7c82de81f9061478fa3e6159798396a5799123efc98bd6397dde5948429d3

SHA512
a988ba63842f04352b96fde2a3117af69ef33111b227fc41ec4f2d6716f1454b5021ef5a936b9a548b8b233612c531b1ac8ea28b677e23d8dc141994d7149517

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RP56V4OA\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KU6LI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KU6LI.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KU6LI.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SC9VB.tmp\is-1ME1V.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SC9VB.tmp\is-1ME1V.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\lCczdefZ4.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\lCczdefZ4.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1856-203-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/1856-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1856-187-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/1856-172-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/2020-185-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2020-154-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2020-204-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4584-184-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4584-205-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4584-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download