gcleaner | 207b03464dca45e73e13688e321538cd7def9ccb77f7f2fb1929ef7f4e4a30dd

Analysis

max time kernel
143s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2023 11:10

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General

Target

73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe
Size

2.9MB
MD5

b085ff032424f75a96d2b27bf595993d
SHA1

3a555104add6236870e7a1555c1a7e4ca2f7c4af
SHA256

73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b
SHA512

c4598f44e5f5b976fd802ab6118bbfce03ebf6ebab542a845394e24087352f3ef46aea2c84e9e7f053fd80c507654077c3063447b3104fbadbac87bdf194a1d2
SSDEEP

49152:AGdcptDCQLO5IfemIjf0Fita138FjwlSnefJXN5V4jEHcb3cNgzf6yLoOKz:dOHD/OGfevAFiIt81wlhRd5VIMCr2OKz

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:

FRec311.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec311.exe
Executes dropped EXE 3 IoCs

Processes:

is-UK8AT.tmpFRec311.exe2NnVfV4nd.exe

pid process

180 is-UK8AT.tmp
4332 FRec311.exe
3832 2NnVfV4nd.exe
Loads dropped DLL 3 IoCs

Processes:

is-UK8AT.tmp

pid process

180 is-UK8AT.tmp
180 is-UK8AT.tmp
180 is-UK8AT.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	FRec311.exe

pid	process
180	is-UK8AT.tmp
4332	FRec311.exe
3832	2NnVfV4nd.exe

pid	process
180	is-UK8AT.tmp
180	is-UK8AT.tmp
180	is-UK8AT.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-UK8AT.tmp

description	ioc	process
File opened for modification	C:\Program Files (x86)\FISsoftFR\FRec311\unins000.dat	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\unins000.dat	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\is-G03P7.tmp	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\is-5DOG3.tmp	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\is-NU2UF.tmp	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\data\is-J5DKV.tmp	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\is-7DFFR.tmp	is-UK8AT.tmp
File created	C:\Program Files (x86)\FISsoftFR\FRec311\is-PPLTJ.tmp	is-UK8AT.tmp
File opened for modification	C:\Program Files (x86)\FISsoftFR\FRec311\FRec311.exe	is-UK8AT.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

2104 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec311.exe

pid process

4332 FRec311.exe
4332 FRec311.exe
4332 FRec311.exe
4332 FRec311.exe
4332 FRec311.exe
4332 FRec311.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2104 taskkill.exe

pid	process
2104	taskkill.exe

pid	process
4332	FRec311.exe
4332	FRec311.exe
4332	FRec311.exe
4332	FRec311.exe
4332	FRec311.exe
4332	FRec311.exe

description	pid	process
Token: SeDebugPrivilege	2104	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exeis-UK8AT.tmpFRec311.execmd.exe

description	pid	process	target process
PID 3944 wrote to memory of 180	3944	73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe	is-UK8AT.tmp
PID 3944 wrote to memory of 180	3944	73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe	is-UK8AT.tmp
PID 3944 wrote to memory of 180	3944	73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe	is-UK8AT.tmp
PID 180 wrote to memory of 4332	180	is-UK8AT.tmp	FRec311.exe
PID 180 wrote to memory of 4332	180	is-UK8AT.tmp	FRec311.exe
PID 180 wrote to memory of 4332	180	is-UK8AT.tmp	FRec311.exe
PID 4332 wrote to memory of 3832	4332	FRec311.exe	2NnVfV4nd.exe
PID 4332 wrote to memory of 3832	4332	FRec311.exe	2NnVfV4nd.exe
PID 4332 wrote to memory of 3832	4332	FRec311.exe	2NnVfV4nd.exe
PID 4332 wrote to memory of 3164	4332	FRec311.exe	cmd.exe
PID 4332 wrote to memory of 3164	4332	FRec311.exe	cmd.exe
PID 4332 wrote to memory of 3164	4332	FRec311.exe	cmd.exe
PID 3164 wrote to memory of 2104	3164	cmd.exe	taskkill.exe
PID 3164 wrote to memory of 2104	3164	cmd.exe	taskkill.exe
PID 3164 wrote to memory of 2104	3164	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe
"C:\Users\Admin\AppData\Local\Temp\73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Users\Admin\AppData\Local\Temp\is-QHTQH.tmp\is-UK8AT.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QHTQH.tmp\is-UK8AT.tmp" /SL4 $500FC "C:\Users\Admin\AppData\Local\Temp\73ba62cba32b3737dc24ba697a638848ca97df33d4e3ebe87debeb3c140de23b.exe" 2752401 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:180
- - C:\Program Files (x86)\FISsoftFR\FRec311\FRec311.exe
    "C:\Program Files (x86)\FISsoftFR\FRec311\FRec311.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4332
  - - C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\2NnVfV4nd.exe
      4⤵
      Executes dropped EXE
      PID:3832
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec311.exe" /f & erase "C:\Program Files (x86)\FISsoftFR\FRec311\FRec311.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3164
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec311.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2104

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)\FISsoftFR\FRec311\FRec311.exe

Filesize
3.3MB

MD5
65ff17ee83a57a439e02836d78540100

SHA1
cdedde3bec7b28b6eec11b63518af08c1696b2f1

SHA256
b8f7da034b740a57432cfccbcededa886a640b52ded2d9061d4519f882ec5906

SHA512
f79969c8099dcb8c7d13fac500f6f8aee0e6df1ff12642ea9f37f026af9a2aa74fa9222455acd60fba87d4e0d416d33a9445c925fbb984115c3d1b60817c4a02

Download Submit
C:\Program Files (x86)\FISsoftFR\FRec311\FRec311.exe

Filesize
3.3MB

MD5
65ff17ee83a57a439e02836d78540100

SHA1
cdedde3bec7b28b6eec11b63518af08c1696b2f1

SHA256
b8f7da034b740a57432cfccbcededa886a640b52ded2d9061d4519f882ec5906

SHA512
f79969c8099dcb8c7d13fac500f6f8aee0e6df1ff12642ea9f37f026af9a2aa74fa9222455acd60fba87d4e0d416d33a9445c925fbb984115c3d1b60817c4a02

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-E52VI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-E52VI.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-E52VI.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QHTQH.tmp\is-UK8AT.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QHTQH.tmp\is-UK8AT.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\2NnVfV4nd.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\2NnVfV4nd.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/180-186-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/180-204-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/180-154-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download
memory/3944-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3944-185-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3944-205-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4332-172-0x0000000000400000-0x0000000001555000-memory.dmp

Filesize
17.3MB

Download
memory/4332-180-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4332-188-0x0000000000400000-0x0000000001555000-memory.dmp

Filesize
17.3MB

Download
memory/4332-171-0x0000000000400000-0x0000000001555000-memory.dmp

Filesize
17.3MB

Download
memory/4332-203-0x0000000000400000-0x0000000001555000-memory.dmp

Filesize
17.3MB

Download