gcleaner | 51c73c975fb8f689444ef3210709a5b3cff3f69b59abde806ec6fc143ca8617f

Analysis

max time kernel
135s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2023, 14:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

2.6MB
MD5

5a029d51c54c8e8d1a4ca5bae1584508
SHA1

9cb16a95bc6736fac5c26a3bb640637f551500f3
SHA256

51c73c975fb8f689444ef3210709a5b3cff3f69b59abde806ec6fc143ca8617f
SHA512

39c1fcfc58437cb4b212fb9566307a70c4a75dda255d8929fd3852b10b582b62ef3f416fd00838a856b1c57d633660163ee35086da5e7bba1ec909e6ca1b2be7
SSDEEP

49152:zGlJfsuieV4u51+yD0eJkFuukjHUJkqB1sAJj/owBT0cXWHygU:qKeV4u5z0kkwuF26OQjwwB0cXWSt

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	Rec420.exe

Executes dropped EXE 3 IoCs

pid	Process
4184	is-61VS9.tmp
1512	Rec420.exe
1340	SFhTNuIZFmsD8.exe

Loads dropped DLL 3 IoCs

pid	Process
4184	is-61VS9.tmp
4184	is-61VS9.tmp
4184	is-61VS9.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 created	C:\Program Files (x86)\FKEsoftFR\Rec420\is-M3UE2.tmp	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\is-60SGQ.tmp	is-61VS9.tmp
File opened for modification	C:\Program Files (x86)\FKEsoftFR\Rec420\unins000.dat	is-61VS9.tmp
File opened for modification	C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\unins000.dat	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\is-IS006.tmp	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\data\is-33IP8.tmp	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\is-B0OGM.tmp	is-61VS9.tmp
File created	C:\Program Files (x86)\FKEsoftFR\Rec420\is-B68BD.tmp	is-61VS9.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
4172	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1512	Rec420.exe
1512	Rec420.exe
1512	Rec420.exe
1512	Rec420.exe
1512	Rec420.exe
1512	Rec420.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4172	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 4184	2648	file.exe	84
PID 2648 wrote to memory of 4184	2648	file.exe	84
PID 2648 wrote to memory of 4184	2648	file.exe	84
PID 4184 wrote to memory of 1512	4184	is-61VS9.tmp	85
PID 4184 wrote to memory of 1512	4184	is-61VS9.tmp	85
PID 4184 wrote to memory of 1512	4184	is-61VS9.tmp	85
PID 1512 wrote to memory of 1340	1512	Rec420.exe	86
PID 1512 wrote to memory of 1340	1512	Rec420.exe	86
PID 1512 wrote to memory of 1340	1512	Rec420.exe	86
PID 1512 wrote to memory of 944	1512	Rec420.exe	94
PID 1512 wrote to memory of 944	1512	Rec420.exe	94
PID 1512 wrote to memory of 944	1512	Rec420.exe	94
PID 944 wrote to memory of 4172	944	cmd.exe	96
PID 944 wrote to memory of 4172	944	cmd.exe	96
PID 944 wrote to memory of 4172	944	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\is-STEOQ.tmp\is-61VS9.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-STEOQ.tmp\is-61VS9.tmp" /SL4 $80064 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2473974 56320
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4184
- - C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe
    "C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1512
  - - C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\SFhTNuIZFmsD8.exe
      4⤵
      Executes dropped EXE
      PID:1340
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "Rec420.exe" /f & erase "C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:944
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "Rec420.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4172

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

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe

Filesize
3.0MB

MD5
3aa20356d617be9d9d94d15ea7c84d1e

SHA1
e6e24d7745f4be76687cd532ecc7f0ddc0274653

SHA256
c30a7b58843db2c3d8f9c317c2f914ccb816a1ef275916e1a1288815366660c0

SHA512
3b1939256a1e7865849eee51cd28a75fc63cc75d40d98113296884043d6ec0e26d215eda9f47b0d607f6b038ba42a8b5bd62fb476e04721416a28188ed43e1b1

Download Submit
C:\Program Files (x86)\FKEsoftFR\Rec420\Rec420.exe

Filesize
3.0MB

MD5
3aa20356d617be9d9d94d15ea7c84d1e

SHA1
e6e24d7745f4be76687cd532ecc7f0ddc0274653

SHA256
c30a7b58843db2c3d8f9c317c2f914ccb816a1ef275916e1a1288815366660c0

SHA512
3b1939256a1e7865849eee51cd28a75fc63cc75d40d98113296884043d6ec0e26d215eda9f47b0d607f6b038ba42a8b5bd62fb476e04721416a28188ed43e1b1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6K3GJRJ1\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5HFJ2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5HFJ2.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5HFJ2.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-STEOQ.tmp\is-61VS9.tmp

Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-STEOQ.tmp\is-61VS9.tmp

Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\SFhTNuIZFmsD8.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\SFhTNuIZFmsD8.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1512-172-0x0000000000400000-0x00000000014FD000-memory.dmp

Filesize
17.0MB

Download
memory/1512-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1512-187-0x0000000000400000-0x00000000014FD000-memory.dmp

Filesize
17.0MB

Download
memory/1512-171-0x0000000000400000-0x00000000014FD000-memory.dmp

Filesize
17.0MB

Download
memory/1512-203-0x0000000000400000-0x00000000014FD000-memory.dmp

Filesize
17.0MB

Download
memory/2648-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-185-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-205-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4184-186-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4184-204-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4184-166-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download