gcleaner | 49e393dd8488e547422062ebb1d6f81a0e25597b91961227c38756f0f36f189f

Analysis

max time kernel
113s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2023 09:17

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General

Target

file.exe
Size

2.9MB
MD5

20937cee5e94b5848b1f1c845b5a6961
SHA1

8046f6136a62bd05b9cf2c443d0be3ab14e7c8e2
SHA256

49e393dd8488e547422062ebb1d6f81a0e25597b91961227c38756f0f36f189f
SHA512

199f78bfca7fdf848e13873deeb8026ac3e2eeb77bf6d3b52393e787932942d649c92de4fcdeb9d0890c55f175735faa4416c4c00cc5b9014d4df62de5ded37a
SSDEEP

49152:AGo4EIlCeDcoJHLo//us+DSaSZgc3jQ8F0EMEUICKZ0f9F5u++QVqZXN7ksRnPXL:do4j3q/f+DXNcc822zL08gUxOKz

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:

FRec310.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec310.exe
Executes dropped EXE 3 IoCs

Processes:

is-L4JHU.tmpFRec310.exeOj5hvURI4Sf.exe

pid process

4172 is-L4JHU.tmp
224 FRec310.exe
2544 Oj5hvURI4Sf.exe
Loads dropped DLL 3 IoCs

Processes:

is-L4JHU.tmp

pid process

4172 is-L4JHU.tmp
4172 is-L4JHU.tmp
4172 is-L4JHU.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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	FRec310.exe

pid	process
4172	is-L4JHU.tmp
224	FRec310.exe
2544	Oj5hvURI4Sf.exe

pid	process
4172	is-L4JHU.tmp
4172	is-L4JHU.tmp
4172	is-L4JHU.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-L4JHU.tmp

description	ioc	process
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\is-SE52A.tmp	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\is-J0HJ1.tmp	is-L4JHU.tmp
File opened for modification	C:\Program Files (x86)\FIRsoftFR\FRec310\unins000.dat	is-L4JHU.tmp
File opened for modification	C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\is-SBJ4I.tmp	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\is-71JES.tmp	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\is-178D7.tmp	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\data\is-911SC.tmp	is-L4JHU.tmp
File created	C:\Program Files (x86)\FIRsoftFR\FRec310\unins000.dat	is-L4JHU.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

4576 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec310.exe

pid process

224 FRec310.exe
224 FRec310.exe
224 FRec310.exe
224 FRec310.exe
224 FRec310.exe
224 FRec310.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4576 taskkill.exe

pid	process
4576	taskkill.exe

pid	process
224	FRec310.exe
224	FRec310.exe
224	FRec310.exe
224	FRec310.exe
224	FRec310.exe
224	FRec310.exe

description	pid	process
Token: SeDebugPrivilege	4576	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-L4JHU.tmpFRec310.execmd.exe

description	pid	process	target process
PID 3344 wrote to memory of 4172	3344	file.exe	is-L4JHU.tmp
PID 3344 wrote to memory of 4172	3344	file.exe	is-L4JHU.tmp
PID 3344 wrote to memory of 4172	3344	file.exe	is-L4JHU.tmp
PID 4172 wrote to memory of 224	4172	is-L4JHU.tmp	FRec310.exe
PID 4172 wrote to memory of 224	4172	is-L4JHU.tmp	FRec310.exe
PID 4172 wrote to memory of 224	4172	is-L4JHU.tmp	FRec310.exe
PID 224 wrote to memory of 2544	224	FRec310.exe	Oj5hvURI4Sf.exe
PID 224 wrote to memory of 2544	224	FRec310.exe	Oj5hvURI4Sf.exe
PID 224 wrote to memory of 2544	224	FRec310.exe	Oj5hvURI4Sf.exe
PID 224 wrote to memory of 3572	224	FRec310.exe	cmd.exe
PID 224 wrote to memory of 3572	224	FRec310.exe	cmd.exe
PID 224 wrote to memory of 3572	224	FRec310.exe	cmd.exe
PID 3572 wrote to memory of 4576	3572	cmd.exe	taskkill.exe
PID 3572 wrote to memory of 4576	3572	cmd.exe	taskkill.exe
PID 3572 wrote to memory of 4576	3572	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:3344
- C:\Users\Admin\AppData\Local\Temp\is-DSB10.tmp\is-L4JHU.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-DSB10.tmp\is-L4JHU.tmp" /SL4 $C004A "C:\Users\Admin\AppData\Local\Temp\file.exe" 2840768 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe
    "C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:224
  - - C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Oj5hvURI4Sf.exe
      4⤵
      Executes dropped EXE
      PID:2544
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec310.exe" /f & erase "C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3572
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec310.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4576

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

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Downloads

C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe

Filesize
3.3MB

MD5
c2b8eabc4a57f185adfc156981beb290

SHA1
bbaafff50dc8e616aa8dd1d857ece1c781814579

SHA256
41326ad7de0782aad8ca36d5aa3221c9bafb9418563008da41308cd9ee9abc4e

SHA512
1a4dd8991a3850815c9d31e7ee3827f843f823e9fe27a7d9b4dc595d0ae332b2ab71c28f696297133615f216d1c44bd11fd454ff32859ef85fe58eca0508045f

Download Submit
C:\Program Files (x86)\FIRsoftFR\FRec310\FRec310.exe

Filesize
3.3MB

MD5
c2b8eabc4a57f185adfc156981beb290

SHA1
bbaafff50dc8e616aa8dd1d857ece1c781814579

SHA256
41326ad7de0782aad8ca36d5aa3221c9bafb9418563008da41308cd9ee9abc4e

SHA512
1a4dd8991a3850815c9d31e7ee3827f843f823e9fe27a7d9b4dc595d0ae332b2ab71c28f696297133615f216d1c44bd11fd454ff32859ef85fe58eca0508045f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYL8D8JJ\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DSB10.tmp\is-L4JHU.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DSB10.tmp\is-L4JHU.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

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

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Oj5hvURI4Sf.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\Oj5hvURI4Sf.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/224-172-0x0000000000400000-0x0000000001542000-memory.dmp

Filesize
17.3MB

Download
memory/224-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/224-188-0x0000000000400000-0x0000000001542000-memory.dmp

Filesize
17.3MB

Download
memory/224-171-0x0000000000400000-0x0000000001542000-memory.dmp

Filesize
17.3MB

Download
memory/224-203-0x0000000000400000-0x0000000001542000-memory.dmp

Filesize
17.3MB

Download
memory/3344-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3344-185-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3344-205-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4172-186-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4172-204-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4172-154-0x00000000020F0000-0x00000000020F1000-memory.dmp

Filesize
4KB

Download