gcleaner | ad00a0a621568e0540771f418433a062d141e73178059c009169255b0825495d

Analysis

max time kernel
67s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
08/02/2023, 07:48

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General

Target

file.exe
Size

2.6MB
MD5

2d4a2da50a1efadbbfbdc8d13d8a0088
SHA1

75af17188e599b41053c11cc2844bd10c70b3fea
SHA256

ad00a0a621568e0540771f418433a062d141e73178059c009169255b0825495d
SHA512

f07196bf1ea13daf4be5b61a8675ea6cd34e00e3325704320f7dd5dcdf2096dc30ca9f2e866fe54b59c0791b90e53449331dbe910b82230e893c7e8065acd419
SSDEEP

49152:rdHwFOmF46fTK+Vu7fVcMWRrz65NY7r97IeRk3+xRLCgv2MR:JHx046fFVuJqrmfYcS9v2MR

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	FRec28.exe

Executes dropped EXE 3 IoCs

pid	Process
3496	file.tmp
4364	FRec28.exe
1972	rpyJhqSdJpfO8.exe

Loads dropped DLL 3 IoCs

pid	Process
3496	file.tmp
3496	file.tmp
3496	file.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

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\is-9C86H.tmp	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\is-H7N8F.tmp	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\is-52CK8.tmp	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\data\is-4FI8M.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FHNsoftFR\FRec28\unins000.dat	file.tmp
File opened for modification	C:\Program Files (x86)\FHNsoftFR\FRec28\FRec28.exe	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\is-70SVE.tmp	file.tmp
File created	C:\Program Files (x86)\FHNsoftFR\FRec28\is-O2UD5.tmp	file.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

pid	Process
4376	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4364	FRec28.exe
4364	FRec28.exe
4364	FRec28.exe
4364	FRec28.exe
4364	FRec28.exe
4364	FRec28.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4376	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 3496	1260	file.exe	81
PID 1260 wrote to memory of 3496	1260	file.exe	81
PID 1260 wrote to memory of 3496	1260	file.exe	81
PID 3496 wrote to memory of 4364	3496	file.tmp	82
PID 3496 wrote to memory of 4364	3496	file.tmp	82
PID 3496 wrote to memory of 4364	3496	file.tmp	82
PID 4364 wrote to memory of 1972	4364	FRec28.exe	83
PID 4364 wrote to memory of 1972	4364	FRec28.exe	83
PID 4364 wrote to memory of 1972	4364	FRec28.exe	83
PID 4364 wrote to memory of 4048	4364	FRec28.exe	93
PID 4364 wrote to memory of 4048	4364	FRec28.exe	93
PID 4364 wrote to memory of 4048	4364	FRec28.exe	93
PID 4048 wrote to memory of 4376	4048	cmd.exe	95
PID 4048 wrote to memory of 4376	4048	cmd.exe	95
PID 4048 wrote to memory of 4376	4048	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\is-LLTIS.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LLTIS.tmp\file.tmp" /SL5="$B0182,2446461,387072,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Program Files (x86)\FHNsoftFR\FRec28\FRec28.exe
    "C:\Program Files (x86)\FHNsoftFR\FRec28\FRec28.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\rpyJhqSdJpfO8.exe
      4⤵
      Executes dropped EXE
      PID:1972
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec28.exe" /f & erase "C:\Program Files (x86)\FHNsoftFR\FRec28\FRec28.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4048
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec28.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4376

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)\FHNsoftFR\FRec28\FRec28.exe

Filesize
1.9MB

MD5
97e3bf50b3d9c092d60faee03317e645

SHA1
6ee3afb1ea3e99a30ad8bdbec757122b0f308b0f

SHA256
9d0d67712f285ba6c13852fdf030dd9ea3b257f5fd52f54051de96357e371313

SHA512
509e11c3da9fc361c75f7a609b49e3d9cd4a4eb7948b33b44537f8102d1586c74b7d1cae1109d651ca373d823ac744a621c7dc070d8864e0bf9b346efc8b6e91

Download Submit
C:\Program Files (x86)\FHNsoftFR\FRec28\FRec28.exe

Filesize
1.9MB

MD5
97e3bf50b3d9c092d60faee03317e645

SHA1
6ee3afb1ea3e99a30ad8bdbec757122b0f308b0f

SHA256
9d0d67712f285ba6c13852fdf030dd9ea3b257f5fd52f54051de96357e371313

SHA512
509e11c3da9fc361c75f7a609b49e3d9cd4a4eb7948b33b44537f8102d1586c74b7d1cae1109d651ca373d823ac744a621c7dc070d8864e0bf9b346efc8b6e91

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LLTIS.tmp\file.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LLTIS.tmp\file.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SI6CL.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SI6CL.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SI6CL.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\rpyJhqSdJpfO8.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\rpyJhqSdJpfO8.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1260-141-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1260-157-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1260-132-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/3496-139-0x00000000024F1000-0x00000000024F3000-memory.dmp

Filesize
8KB

Download
memory/4364-146-0x0000000000400000-0x00000000013DC000-memory.dmp

Filesize
15.9MB

Download
memory/4364-145-0x0000000000400000-0x00000000013DC000-memory.dmp

Filesize
15.9MB

Download
memory/4364-150-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4364-153-0x0000000000400000-0x00000000013DC000-memory.dmp

Filesize
15.9MB

Download
memory/4364-156-0x0000000000400000-0x00000000013DC000-memory.dmp

Filesize
15.9MB

Download