gcleaner | cd101ed66514a0cf42081119e73403fdb0f47baf944f33227d018dac0fc1ba12

Analysis

max time kernel
99s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
11-03-2023 15:47

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General

Target

9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe
Size

2.7MB
MD5

089b7c3fdf1390bc643edc51273aa7f4
SHA1

ce4a3abe32c1667115606668f6c8a7ae10b7dd24
SHA256

9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3
SHA512

6d95ad8234040296a6f48166ace914a9eca1e099a0a817221e62b253b69bdd12ff5a573fc2719692b208b8270e5d3b58791e41553b85d65256623c779ee8e285
SSDEEP

49152:AG7Ncx+ltZ0N+WzY8e/ocP2e87MrPHmmWq61fe9ZNU+Xvn/UmOKz:d7Ncx+n0+Wwd2eRbDgJeZUu/zOKz

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:

FRec31.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation FRec31.exe
Executes dropped EXE 3 IoCs

Processes:

is-KBT3R.tmpFRec31.exe3FGuoU9uz.exe

pid process

4544 is-KBT3R.tmp
216 FRec31.exe
1296 3FGuoU9uz.exe
Loads dropped DLL 3 IoCs

Processes:

is-KBT3R.tmp

pid process

4544 is-KBT3R.tmp
4544 is-KBT3R.tmp
4544 is-KBT3R.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	FRec31.exe

pid	process
4544	is-KBT3R.tmp
216	FRec31.exe
1296	3FGuoU9uz.exe

pid	process
4544	is-KBT3R.tmp
4544	is-KBT3R.tmp
4544	is-KBT3R.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-KBT3R.tmp

description	ioc	process
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\unins000.dat	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\is-OO1K2.tmp	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\is-R6VUG.tmp	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\is-SF340.tmp	is-KBT3R.tmp
File opened for modification	C:\Program Files (x86)\FIIsoftFR\FRec31\unins000.dat	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\is-S3KLL.tmp	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\is-L4ST7.tmp	is-KBT3R.tmp
File created	C:\Program Files (x86)\FIIsoftFR\FRec31\data\is-C70FA.tmp	is-KBT3R.tmp
File opened for modification	C:\Program Files (x86)\FIIsoftFR\FRec31\FRec31.exe	is-KBT3R.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

4176 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec31.exe

pid process

216 FRec31.exe
216 FRec31.exe
216 FRec31.exe
216 FRec31.exe
216 FRec31.exe
216 FRec31.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4176 taskkill.exe

pid	process
4176	taskkill.exe

pid	process
216	FRec31.exe
216	FRec31.exe
216	FRec31.exe
216	FRec31.exe
216	FRec31.exe
216	FRec31.exe

description	pid	process
Token: SeDebugPrivilege	4176	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exeis-KBT3R.tmpFRec31.execmd.exe

description	pid	process	target process
PID 4324 wrote to memory of 4544	4324	9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe	is-KBT3R.tmp
PID 4324 wrote to memory of 4544	4324	9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe	is-KBT3R.tmp
PID 4324 wrote to memory of 4544	4324	9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe	is-KBT3R.tmp
PID 4544 wrote to memory of 216	4544	is-KBT3R.tmp	FRec31.exe
PID 4544 wrote to memory of 216	4544	is-KBT3R.tmp	FRec31.exe
PID 4544 wrote to memory of 216	4544	is-KBT3R.tmp	FRec31.exe
PID 216 wrote to memory of 1296	216	FRec31.exe	3FGuoU9uz.exe
PID 216 wrote to memory of 1296	216	FRec31.exe	3FGuoU9uz.exe
PID 216 wrote to memory of 1296	216	FRec31.exe	3FGuoU9uz.exe
PID 216 wrote to memory of 1796	216	FRec31.exe	cmd.exe
PID 216 wrote to memory of 1796	216	FRec31.exe	cmd.exe
PID 216 wrote to memory of 1796	216	FRec31.exe	cmd.exe
PID 1796 wrote to memory of 4176	1796	cmd.exe	taskkill.exe
PID 1796 wrote to memory of 4176	1796	cmd.exe	taskkill.exe
PID 1796 wrote to memory of 4176	1796	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe
"C:\Users\Admin\AppData\Local\Temp\9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Users\Admin\AppData\Local\Temp\is-CTUJE.tmp\is-KBT3R.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-CTUJE.tmp\is-KBT3R.tmp" /SL4 $80040 "C:\Users\Admin\AppData\Local\Temp\9dc3c210f41de276264b20019ec64beb14955fb59dff048b10fab6a397a26be3.exe" 2576922 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4544
- - C:\Program Files (x86)\FIIsoftFR\FRec31\FRec31.exe
    "C:\Program Files (x86)\FIIsoftFR\FRec31\FRec31.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:216
  - - C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\3FGuoU9uz.exe
      4⤵
      Executes dropped EXE
      PID:1296
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec31.exe" /f & erase "C:\Program Files (x86)\FIIsoftFR\FRec31\FRec31.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1796
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec31.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4176

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)\FIIsoftFR\FRec31\FRec31.exe

Filesize
2.8MB

MD5
280fa66f93f647237a9eb14e97b9b6a6

SHA1
d8ceffc996e1fad84466c0b6fd7612e91481a5fd

SHA256
bedc034e374e245974b7c7342bee74eed741993f3efef7d50aa88f8963b357c6

SHA512
77d4c693f2d351eba24bffd39227674abcc7ae26a742de532b34f0502087b185680a2e87e08ade1d9a30efc766acd9e1321d03be0825548238188c4ab57baf58

Download Submit
C:\Program Files (x86)\FIIsoftFR\FRec31\FRec31.exe

Filesize
2.8MB

MD5
280fa66f93f647237a9eb14e97b9b6a6

SHA1
d8ceffc996e1fad84466c0b6fd7612e91481a5fd

SHA256
bedc034e374e245974b7c7342bee74eed741993f3efef7d50aa88f8963b357c6

SHA512
77d4c693f2d351eba24bffd39227674abcc7ae26a742de532b34f0502087b185680a2e87e08ade1d9a30efc766acd9e1321d03be0825548238188c4ab57baf58

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-73B21.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-73B21.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-73B21.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CTUJE.tmp\is-KBT3R.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CTUJE.tmp\is-KBT3R.tmp

Filesize
658KB

MD5
71c654797ffa6853389354687dde286b

SHA1
edd7178ab9043acc4a05dddb9dad972ede2f7748

SHA256
97d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04

SHA512
d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\3FGuoU9uz.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\3FGuoU9uz.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/216-173-0x0000000000400000-0x00000000014CE000-memory.dmp

Filesize
16.8MB

Download
memory/216-172-0x0000000000400000-0x00000000014CE000-memory.dmp

Filesize
16.8MB

Download
memory/216-181-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/216-188-0x0000000000400000-0x00000000014CE000-memory.dmp

Filesize
16.8MB

Download
memory/216-204-0x0000000000400000-0x00000000014CE000-memory.dmp

Filesize
16.8MB

Download
memory/4324-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4324-185-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4324-206-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4544-186-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4544-166-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/4544-205-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download