gcleaner | 919ae2ce82a45a09ee73c1e91e66db95872318e624df0bf85f2c9f775e8717a7

Analysis

max time kernel
74s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
13-04-2023 01:05

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General

Target

file.exe
Size

2.8MB
MD5

df048e7a994c78ffc7ef2f8bcb88f6ee
SHA1

03498a30e689e8d27077df996f6f8fe865706040
SHA256

919ae2ce82a45a09ee73c1e91e66db95872318e624df0bf85f2c9f775e8717a7
SHA512

3abcf59b0a8f7b0682427c6c432000c710cf23c028211048fe7bcb10d9d6331cbc9664342b6754b8222069fd9823da5456f1ef0476ff21b592372b997d179e8f
SSDEEP

49152:zGlJfsodMXN8DzqP72cewYC3leHKxS+HHP7C3KI/VgW02ROgIJH1ycYTNeoaEHwo:qde8bNwtsQC3N/LhfIJH8deohHc+fdWQ

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:

Rec412.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation Rec412.exe
Executes dropped EXE 3 IoCs

Processes:

is-AJORU.tmpRec412.exe5hRlOG.exe

pid process

2480 is-AJORU.tmp
952 Rec412.exe
2892 5hRlOG.exe
Loads dropped DLL 3 IoCs

Processes:

is-AJORU.tmp

pid process

2480 is-AJORU.tmp
2480 is-AJORU.tmp
2480 is-AJORU.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	Rec412.exe

pid	process
2480	is-AJORU.tmp
952	Rec412.exe
2892	5hRlOG.exe

pid	process
2480	is-AJORU.tmp
2480	is-AJORU.tmp
2480	is-AJORU.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-AJORU.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\data\is-5RHMM.tmp	is-AJORU.tmp
File opened for modification	C:\Program Files (x86)\FJWsoftFR\Rec412\unins000.dat	is-AJORU.tmp
File opened for modification	C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\unins000.dat	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\is-SMFJ4.tmp	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\is-3MGVG.tmp	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\is-MLLDG.tmp	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\is-RF85K.tmp	is-AJORU.tmp
File created	C:\Program Files (x86)\FJWsoftFR\Rec412\is-ASU35.tmp	is-AJORU.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

4432 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Rec412.exe

pid process

952 Rec412.exe
952 Rec412.exe
952 Rec412.exe
952 Rec412.exe
952 Rec412.exe
952 Rec412.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4432 taskkill.exe

pid	process
4432	taskkill.exe

pid	process
952	Rec412.exe
952	Rec412.exe
952	Rec412.exe
952	Rec412.exe
952	Rec412.exe
952	Rec412.exe

description	pid	process
Token: SeDebugPrivilege	4432	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-AJORU.tmpRec412.execmd.exe

description	pid	process	target process
PID 3028 wrote to memory of 2480	3028	file.exe	is-AJORU.tmp
PID 3028 wrote to memory of 2480	3028	file.exe	is-AJORU.tmp
PID 3028 wrote to memory of 2480	3028	file.exe	is-AJORU.tmp
PID 2480 wrote to memory of 952	2480	is-AJORU.tmp	Rec412.exe
PID 2480 wrote to memory of 952	2480	is-AJORU.tmp	Rec412.exe
PID 2480 wrote to memory of 952	2480	is-AJORU.tmp	Rec412.exe
PID 952 wrote to memory of 2892	952	Rec412.exe	5hRlOG.exe
PID 952 wrote to memory of 2892	952	Rec412.exe	5hRlOG.exe
PID 952 wrote to memory of 2892	952	Rec412.exe	5hRlOG.exe
PID 952 wrote to memory of 1280	952	Rec412.exe	cmd.exe
PID 952 wrote to memory of 1280	952	Rec412.exe	cmd.exe
PID 952 wrote to memory of 1280	952	Rec412.exe	cmd.exe
PID 1280 wrote to memory of 4432	1280	cmd.exe	taskkill.exe
PID 1280 wrote to memory of 4432	1280	cmd.exe	taskkill.exe
PID 1280 wrote to memory of 4432	1280	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3028

C:\Users\Admin\AppData\Local\Temp\is-HUEPT.tmp\is-AJORU.tmp
"C:\Users\Admin\AppData\Local\Temp\is-HUEPT.tmp\is-AJORU.tmp" /SL4 $A017E "C:\Users\Admin\AppData\Local\Temp\file.exe" 2651609 56320
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2480

C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe
"C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:952

C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\5hRlOG.exe
4⤵
- Executes dropped EXE
PID:2892

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "Rec412.exe" /f & erase "C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:1280

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "Rec412.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4432

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe
Filesize
3.0MB

MD5
79a3bbce41cdd9519e3be14a0e153cab

SHA1
b16f1c568ad6867f77d31d8fb3664de3ba2ad363

SHA256
459f9e15a698a843d67220ba52a4e9ada7298a5b68331890e32238d05c7234d3

SHA512
630c1ad1c6fb64efcbc8484e2413a089d9135caa167d87638e1c34541a3394424f2c7f017698ca76ee6ac47aad6b353eb2516e29b443ba2f7569c7427905d541

Download Submit
C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe
Filesize
3.0MB

MD5
79a3bbce41cdd9519e3be14a0e153cab

SHA1
b16f1c568ad6867f77d31d8fb3664de3ba2ad363

SHA256
459f9e15a698a843d67220ba52a4e9ada7298a5b68331890e32238d05c7234d3

SHA512
630c1ad1c6fb64efcbc8484e2413a089d9135caa167d87638e1c34541a3394424f2c7f017698ca76ee6ac47aad6b353eb2516e29b443ba2f7569c7427905d541

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-8OJFM.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8OJFM.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8OJFM.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HUEPT.tmp\is-AJORU.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HUEPT.tmp\is-AJORU.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\5hRlOG.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\5hRlOG.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/952-172-0x0000000000400000-0x00000000014FF000-memory.dmp

Filesize
17.0MB

Download
memory/952-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/952-188-0x0000000000400000-0x00000000014FF000-memory.dmp

Filesize
17.0MB

Download
memory/952-171-0x0000000000400000-0x00000000014FF000-memory.dmp

Filesize
17.0MB

Download
memory/952-203-0x0000000000400000-0x00000000014FF000-memory.dmp

Filesize
17.0MB

Download
memory/2480-186-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2480-204-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2480-154-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/3028-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3028-185-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3028-205-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download