gcleaner | 924b13e4fefe20d456b9d6b602d4fd9a1f20baf806919d6e97b6994bfed72912

Analysis

max time kernel
47s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09-04-2023 07:42

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General

Target

1e7fa16e39d299172ecf8763b163e90c.exe
Size

3.0MB
MD5

1e7fa16e39d299172ecf8763b163e90c
SHA1

bc0502f470e2e0e81858688ce1aa4fdf71b0f3c9
SHA256

924b13e4fefe20d456b9d6b602d4fd9a1f20baf806919d6e97b6994bfed72912
SHA512

177515845113c52c44eac38b86587fd5f871a5fd508844a1132e4bd6b5f6668b8dbd92654fa7c6d6c30ae2a832b547cd02ae485e21f8ac301b40484b4bcde33f
SSDEEP

49152:qGlJfsT0McIEj9c23fAd1QnMGquM+pVI7B0f7i9QCBgoIXzIh472LIWq8+vK/bjN:7w0McIkfak5qySWW9QCeB2sWJ+vzYylm

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:

FRec49.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation FRec49.exe
Executes dropped EXE 3 IoCs

Processes:

is-484MT.tmpFRec49.exebMUWx03zw7.exe

pid process

464 is-484MT.tmp
2228 FRec49.exe
4560 bMUWx03zw7.exe
Loads dropped DLL 3 IoCs

Processes:

is-484MT.tmp

pid process

464 is-484MT.tmp
464 is-484MT.tmp
464 is-484MT.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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	FRec49.exe

pid	process
464	is-484MT.tmp
2228	FRec49.exe
4560	bMUWx03zw7.exe

pid	process
464	is-484MT.tmp
464	is-484MT.tmp
464	is-484MT.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-484MT.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\is-T49E5.tmp	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\is-CBVMU.tmp	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\is-NF145.tmp	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\data\is-H835O.tmp	is-484MT.tmp
File opened for modification	C:\Program Files (x86)\FJTsoftFR\Rec49\unins000.dat	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\unins000.dat	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\is-94TC3.tmp	is-484MT.tmp
File created	C:\Program Files (x86)\FJTsoftFR\Rec49\is-OR93N.tmp	is-484MT.tmp
File opened for modification	C:\Program Files (x86)\FJTsoftFR\Rec49\FRec49.exe	is-484MT.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

1596 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec49.exe

pid process

2228 FRec49.exe
2228 FRec49.exe
2228 FRec49.exe
2228 FRec49.exe
2228 FRec49.exe
2228 FRec49.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1596 taskkill.exe

pid	process
1596	taskkill.exe

pid	process
2228	FRec49.exe
2228	FRec49.exe
2228	FRec49.exe
2228	FRec49.exe
2228	FRec49.exe
2228	FRec49.exe

description	pid	process
Token: SeDebugPrivilege	1596	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

1e7fa16e39d299172ecf8763b163e90c.exeis-484MT.tmpFRec49.execmd.exe

description	pid	process	target process
PID 4828 wrote to memory of 464	4828	1e7fa16e39d299172ecf8763b163e90c.exe	is-484MT.tmp
PID 4828 wrote to memory of 464	4828	1e7fa16e39d299172ecf8763b163e90c.exe	is-484MT.tmp
PID 4828 wrote to memory of 464	4828	1e7fa16e39d299172ecf8763b163e90c.exe	is-484MT.tmp
PID 464 wrote to memory of 2228	464	is-484MT.tmp	FRec49.exe
PID 464 wrote to memory of 2228	464	is-484MT.tmp	FRec49.exe
PID 464 wrote to memory of 2228	464	is-484MT.tmp	FRec49.exe
PID 2228 wrote to memory of 4560	2228	FRec49.exe	bMUWx03zw7.exe
PID 2228 wrote to memory of 4560	2228	FRec49.exe	bMUWx03zw7.exe
PID 2228 wrote to memory of 4560	2228	FRec49.exe	bMUWx03zw7.exe
PID 2228 wrote to memory of 3664	2228	FRec49.exe	cmd.exe
PID 2228 wrote to memory of 3664	2228	FRec49.exe	cmd.exe
PID 2228 wrote to memory of 3664	2228	FRec49.exe	cmd.exe
PID 3664 wrote to memory of 1596	3664	cmd.exe	taskkill.exe
PID 3664 wrote to memory of 1596	3664	cmd.exe	taskkill.exe
PID 3664 wrote to memory of 1596	3664	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\1e7fa16e39d299172ecf8763b163e90c.exe
"C:\Users\Admin\AppData\Local\Temp\1e7fa16e39d299172ecf8763b163e90c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4828

C:\Users\Admin\AppData\Local\Temp\is-BNR4D.tmp\is-484MT.tmp
"C:\Users\Admin\AppData\Local\Temp\is-BNR4D.tmp\is-484MT.tmp" /SL4 $A0054 "C:\Users\Admin\AppData\Local\Temp\1e7fa16e39d299172ecf8763b163e90c.exe" 2892115 56320
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:464

C:\Program Files (x86)\FJTsoftFR\Rec49\FRec49.exe
"C:\Program Files (x86)\FJTsoftFR\Rec49\FRec49.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2228

C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\bMUWx03zw7.exe
4⤵
- Executes dropped EXE
PID:4560

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec49.exe" /f & erase "C:\Program Files (x86)\FJTsoftFR\Rec49\FRec49.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:3664

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "FRec49.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1596

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)\FJTsoftFR\Rec49\FRec49.exe
Filesize
3.2MB

MD5
665b5f097f1e8ff273f3d55f3bb12eb0

SHA1
abf9cc2b3bcd78b5ea73575f9d942b02592c6d6e

SHA256
fafac0880146d282371ebde79b2fd337fdd5b20439bb748a982333ed3ab3f07b

SHA512
51867656b538db866c0141532da784d46306c663c3f9fdb0f2cadcc54207efc26f94635a068fe5862585e1929cc802f9788fa22546d554f6642b6a9a3730bcab

Download Submit
C:\Program Files (x86)\FJTsoftFR\Rec49\FRec49.exe
Filesize
3.2MB

MD5
665b5f097f1e8ff273f3d55f3bb12eb0

SHA1
abf9cc2b3bcd78b5ea73575f9d942b02592c6d6e

SHA256
fafac0880146d282371ebde79b2fd337fdd5b20439bb748a982333ed3ab3f07b

SHA512
51867656b538db866c0141532da784d46306c663c3f9fdb0f2cadcc54207efc26f94635a068fe5862585e1929cc802f9788fa22546d554f6642b6a9a3730bcab

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BMP3ERH\dll[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BNR4D.tmp\is-484MT.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BNR4D.tmp\is-484MT.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U1I18.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U1I18.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U1I18.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\bMUWx03zw7.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{5cebde14-b1a3-11ed-bd92-806e6f6e6963}\bMUWx03zw7.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/464-186-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/464-185-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/464-206-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/464-139-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/2228-171-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/2228-181-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/2228-188-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/2228-172-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/2228-205-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/4828-173-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-208-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download