gcleaner | 3855e86e415a59e0b4a3641ca1d0620c2ebc5832bec90ba30ff017848de0f50e

Analysis

max time kernel
60s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2023 14:21

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General

Target

b108df4182d465644289ca8d625ffbf9.exe
Size

3.0MB
MD5

b108df4182d465644289ca8d625ffbf9
SHA1

cd67096e7096ba17d279825711499625a2b21c9b
SHA256

3855e86e415a59e0b4a3641ca1d0620c2ebc5832bec90ba30ff017848de0f50e
SHA512

a1213a83fa503bea2ed61951e11705a759458db2bc9b2a0b4e76a9c613533f7644e654ae74a74e8ab1b323943ccf5ebc80d92330e42e848dd397869918fbfa99
SSDEEP

49152:zGlJfsYV48BkoYAJowu8KEgxAu5eknLSrPgyt3nHUeHAWAgtwyZpDzsehHNpAKoo:qu8Jgx127t33wguGDoetZ9WSt

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:

Rec410.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation Rec410.exe
Executes dropped EXE 3 IoCs

Processes:

is-C8D1Q.tmpRec410.exeQy6PMG9Y6jBwS.exe

pid process

4128 is-C8D1Q.tmp
4588 Rec410.exe
4432 Qy6PMG9Y6jBwS.exe
Loads dropped DLL 3 IoCs

Processes:

is-C8D1Q.tmp

pid process

4128 is-C8D1Q.tmp
4128 is-C8D1Q.tmp
4128 is-C8D1Q.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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	Rec410.exe

pid	process
4128	is-C8D1Q.tmp
4588	Rec410.exe
4432	Qy6PMG9Y6jBwS.exe

pid	process
4128	is-C8D1Q.tmp
4128	is-C8D1Q.tmp
4128	is-C8D1Q.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-C8D1Q.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\unins000.dat	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-G3D3C.tmp	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-MVA3J.tmp	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-5JNKR.tmp	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\data\is-PI4PE.tmp	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-CV2UC.tmp	is-C8D1Q.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-IPJVD.tmp	is-C8D1Q.tmp
File opened for modification	C:\Program Files (x86)\FJUsoftFR\Rec410\unins000.dat	is-C8D1Q.tmp
File opened for modification	C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe	is-C8D1Q.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

4668 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Rec410.exe

pid process

4588 Rec410.exe
4588 Rec410.exe
4588 Rec410.exe
4588 Rec410.exe
4588 Rec410.exe
4588 Rec410.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4668 taskkill.exe

pid	process
4668	taskkill.exe

pid	process
4588	Rec410.exe
4588	Rec410.exe
4588	Rec410.exe
4588	Rec410.exe
4588	Rec410.exe
4588	Rec410.exe

description	pid	process
Token: SeDebugPrivilege	4668	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

b108df4182d465644289ca8d625ffbf9.exeis-C8D1Q.tmpRec410.execmd.exe

description	pid	process	target process
PID 3036 wrote to memory of 4128	3036	b108df4182d465644289ca8d625ffbf9.exe	is-C8D1Q.tmp
PID 3036 wrote to memory of 4128	3036	b108df4182d465644289ca8d625ffbf9.exe	is-C8D1Q.tmp
PID 3036 wrote to memory of 4128	3036	b108df4182d465644289ca8d625ffbf9.exe	is-C8D1Q.tmp
PID 4128 wrote to memory of 4588	4128	is-C8D1Q.tmp	Rec410.exe
PID 4128 wrote to memory of 4588	4128	is-C8D1Q.tmp	Rec410.exe
PID 4128 wrote to memory of 4588	4128	is-C8D1Q.tmp	Rec410.exe
PID 4588 wrote to memory of 4432	4588	Rec410.exe	Qy6PMG9Y6jBwS.exe
PID 4588 wrote to memory of 4432	4588	Rec410.exe	Qy6PMG9Y6jBwS.exe
PID 4588 wrote to memory of 4432	4588	Rec410.exe	Qy6PMG9Y6jBwS.exe
PID 4588 wrote to memory of 4896	4588	Rec410.exe	cmd.exe
PID 4588 wrote to memory of 4896	4588	Rec410.exe	cmd.exe
PID 4588 wrote to memory of 4896	4588	Rec410.exe	cmd.exe
PID 4896 wrote to memory of 4668	4896	cmd.exe	taskkill.exe
PID 4896 wrote to memory of 4668	4896	cmd.exe	taskkill.exe
PID 4896 wrote to memory of 4668	4896	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b108df4182d465644289ca8d625ffbf9.exe
"C:\Users\Admin\AppData\Local\Temp\b108df4182d465644289ca8d625ffbf9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3036

C:\Users\Admin\AppData\Local\Temp\is-EURLQ.tmp\is-C8D1Q.tmp
"C:\Users\Admin\AppData\Local\Temp\is-EURLQ.tmp\is-C8D1Q.tmp" /SL4 $D002E "C:\Users\Admin\AppData\Local\Temp\b108df4182d465644289ca8d625ffbf9.exe" 2920114 56320
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4128

C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
"C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4588

C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\Qy6PMG9Y6jBwS.exe
4⤵
- Executes dropped EXE
PID:4432

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "Rec410.exe" /f & erase "C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:4896

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "Rec410.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4668

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

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Downloads

C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
Filesize
3.2MB

MD5
cf95525860a5b378c090809ca4443c56

SHA1
792f992ed99140acdad78b1b982a8bc6ad1a8edb

SHA256
45b76514d83063c6ea8845dcbfbc51024cc42140491a27833459df82886248dd

SHA512
ba7ff3964fb7d8ce2c18594fc85521ad38471a70f74f4db5202e0645abd5106649953a8eda076ac838f8175cc7f4022b27831a4c0a008e73c4b6b61c68fad7d6

Download Submit
C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
Filesize
3.2MB

MD5
cf95525860a5b378c090809ca4443c56

SHA1
792f992ed99140acdad78b1b982a8bc6ad1a8edb

SHA256
45b76514d83063c6ea8845dcbfbc51024cc42140491a27833459df82886248dd

SHA512
ba7ff3964fb7d8ce2c18594fc85521ad38471a70f74f4db5202e0645abd5106649953a8eda076ac838f8175cc7f4022b27831a4c0a008e73c4b6b61c68fad7d6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G1ORIWBN\dll[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EURLQ.tmp\is-C8D1Q.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EURLQ.tmp\is-C8D1Q.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MN0FR.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MN0FR.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MN0FR.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\Qy6PMG9Y6jBwS.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\Qy6PMG9Y6jBwS.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/3036-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3036-183-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3036-207-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-184-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4128-206-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4128-166-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/4588-172-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/4588-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4588-186-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/4588-171-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/4588-205-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download