gcleaner | 1dd38e375c52c69190bebe72918c886a1a3aaf35f78cbea57df74e20b379f96c

Analysis

max time kernel
85s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
11-04-2023 04:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

3.0MB
MD5

7f420b8feb60476588ece4d312475f0c
SHA1

286027b7b0d625d41c49c735bab192298bba550c
SHA256

1dd38e375c52c69190bebe72918c886a1a3aaf35f78cbea57df74e20b379f96c
SHA512

5f7ca403dd581cf7eb1aba9477c260e33c7998df96443498273f5388bb0ac6c5ad6adad96d09e6eee3c9408669a74d6327aaead2a6c7184950af953cfb6c6978
SSDEEP

98304:q/BPns8uPsS8lJArNowrkRg9SoD40EAxG4TWSt:afuCDApVG4V4t4zTWQ

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:

Rec411.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation Rec411.exe
Executes dropped EXE 3 IoCs

Processes:

is-USV64.tmpRec411.exeCJT7EMP0HX.exe

pid process

4376 is-USV64.tmp
1208 Rec411.exe
2980 CJT7EMP0HX.exe
Loads dropped DLL 3 IoCs

Processes:

is-USV64.tmp

pid process

4376 is-USV64.tmp
4376 is-USV64.tmp
4376 is-USV64.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	Rec411.exe

pid	process
4376	is-USV64.tmp
1208	Rec411.exe
2980	CJT7EMP0HX.exe

pid	process
4376	is-USV64.tmp
4376	is-USV64.tmp
4376	is-USV64.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-USV64.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\unins000.dat	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\is-BSM47.tmp	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\is-NO2OG.tmp	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\is-FRAVV.tmp	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\data\is-8CT3G.tmp	is-USV64.tmp
File opened for modification	C:\Program Files (x86)\FJVsoftFR\Rec411\unins000.dat	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\is-S2HTP.tmp	is-USV64.tmp
File created	C:\Program Files (x86)\FJVsoftFR\Rec411\is-8D68S.tmp	is-USV64.tmp
File opened for modification	C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe	is-USV64.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

1972 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Rec411.exe

pid process

1208 Rec411.exe
1208 Rec411.exe
1208 Rec411.exe
1208 Rec411.exe
1208 Rec411.exe
1208 Rec411.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1972 taskkill.exe

pid	process
1972	taskkill.exe

pid	process
1208	Rec411.exe
1208	Rec411.exe
1208	Rec411.exe
1208	Rec411.exe
1208	Rec411.exe
1208	Rec411.exe

description	pid	process
Token: SeDebugPrivilege	1972	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-USV64.tmpRec411.execmd.exe

description	pid	process	target process
PID 3400 wrote to memory of 4376	3400	file.exe	is-USV64.tmp
PID 3400 wrote to memory of 4376	3400	file.exe	is-USV64.tmp
PID 3400 wrote to memory of 4376	3400	file.exe	is-USV64.tmp
PID 4376 wrote to memory of 1208	4376	is-USV64.tmp	Rec411.exe
PID 4376 wrote to memory of 1208	4376	is-USV64.tmp	Rec411.exe
PID 4376 wrote to memory of 1208	4376	is-USV64.tmp	Rec411.exe
PID 1208 wrote to memory of 2980	1208	Rec411.exe	CJT7EMP0HX.exe
PID 1208 wrote to memory of 2980	1208	Rec411.exe	CJT7EMP0HX.exe
PID 1208 wrote to memory of 2980	1208	Rec411.exe	CJT7EMP0HX.exe
PID 1208 wrote to memory of 1552	1208	Rec411.exe	cmd.exe
PID 1208 wrote to memory of 1552	1208	Rec411.exe	cmd.exe
PID 1208 wrote to memory of 1552	1208	Rec411.exe	cmd.exe
PID 1552 wrote to memory of 1972	1552	cmd.exe	taskkill.exe
PID 1552 wrote to memory of 1972	1552	cmd.exe	taskkill.exe
PID 1552 wrote to memory of 1972	1552	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:3400

C:\Users\Admin\AppData\Local\Temp\is-5A0SB.tmp\is-USV64.tmp
"C:\Users\Admin\AppData\Local\Temp\is-5A0SB.tmp\is-USV64.tmp" /SL4 $A01C4 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2950793 56320
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4376

C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe
"C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\CJT7EMP0HX.exe
4⤵
- Executes dropped EXE
PID:2980

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "Rec411.exe" /f & erase "C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "Rec411.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1972

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

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe
Filesize
3.2MB

MD5
82e5b8d591d30e8e62090604dd87c845

SHA1
cfa6592ddda22cc469639118c5431910e5766dd1

SHA256
5a15948fc3dba56bb262f50280a81e466959e639496839a676822d11ff07fef6

SHA512
9af6be1c5cf2313ca7f53f85a343dc4abadf51d0acb40844d4f1db2084123b6d312b59f39c5099699909135a757d2107dd8e8e6b48dbab2641aab22620bed48c

Download Submit
C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe
Filesize
3.2MB

MD5
82e5b8d591d30e8e62090604dd87c845

SHA1
cfa6592ddda22cc469639118c5431910e5766dd1

SHA256
5a15948fc3dba56bb262f50280a81e466959e639496839a676822d11ff07fef6

SHA512
9af6be1c5cf2313ca7f53f85a343dc4abadf51d0acb40844d4f1db2084123b6d312b59f39c5099699909135a757d2107dd8e8e6b48dbab2641aab22620bed48c

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-5A0SB.tmp\is-USV64.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5A0SB.tmp\is-USV64.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

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

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\CJT7EMP0HX.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\CJT7EMP0HX.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1208-172-0x0000000000400000-0x000000000152D000-memory.dmp

Filesize
17.2MB

Download
memory/1208-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1208-187-0x0000000000400000-0x000000000152D000-memory.dmp

Filesize
17.2MB

Download
memory/1208-171-0x0000000000400000-0x000000000152D000-memory.dmp

Filesize
17.2MB

Download
memory/1208-203-0x0000000000400000-0x000000000152D000-memory.dmp

Filesize
17.2MB

Download
memory/3400-133-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3400-185-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3400-205-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4376-186-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4376-204-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4376-154-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download