gcleaner | 8049bcfc9c66e9b359dfe3f87a9d9d36def5e10472cd3ae55bd10dd5dc986504

Analysis

max time kernel
157s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2023, 01:06

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General

Target

ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe
Size

2.4MB
MD5

262a9c846d31f82aba3546d6099bfc6c
SHA1

8e3193c110f3d5e00281b48f29165da231b7bad2
SHA256

ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d
SHA512

2a7c82d30c43a23c6afa64fd9defbfdaee0fe555785de75fa7d85159731af1413f87c37eaf3f7d9a1f166bf70518298a8af7444cce639f007873da6758f93162
SSDEEP

49152:rdHN3mnCaMm05vJaeYdhQXH6AW2kwzLLCgv2MR:JH8nwpdYdhQXjl37v2MR

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	FRec29.exe

Executes dropped EXE 3 IoCs

pid	Process
1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
4332	FRec29.exe
2360	0OSRwktek.exe

Loads dropped DLL 3 IoCs

pid	Process
1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.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)\FHOsoftFR\FRec29\is-KOHDH.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\is-NVPPR.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\is-6MQOK.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\is-LGQOO.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\data\is-FPIKU.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\unins000.dat	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File opened for modification	C:\Program Files (x86)\FHOsoftFR\FRec29\unins000.dat	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File opened for modification	C:\Program Files (x86)\FHOsoftFR\FRec29\FRec29.exe	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
File created	C:\Program Files (x86)\FHOsoftFR\FRec29\is-V3AOO.tmp	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.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
4836	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4332	FRec29.exe
4332	FRec29.exe
4332	FRec29.exe
4332	FRec29.exe
4332	FRec29.exe
4332	FRec29.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4332	FRec29.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4836	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1484	2252	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe	80
PID 2252 wrote to memory of 1484	2252	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe	80
PID 2252 wrote to memory of 1484	2252	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe	80
PID 1484 wrote to memory of 4332	1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp	81
PID 1484 wrote to memory of 4332	1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp	81
PID 1484 wrote to memory of 4332	1484	ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp	81
PID 4332 wrote to memory of 2360	4332	FRec29.exe	82
PID 4332 wrote to memory of 2360	4332	FRec29.exe	82
PID 4332 wrote to memory of 2360	4332	FRec29.exe	82
PID 4332 wrote to memory of 992	4332	FRec29.exe	91
PID 4332 wrote to memory of 992	4332	FRec29.exe	91
PID 4332 wrote to memory of 992	4332	FRec29.exe	91
PID 992 wrote to memory of 4836	992	cmd.exe	93
PID 992 wrote to memory of 4836	992	cmd.exe	93
PID 992 wrote to memory of 4836	992	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe
"C:\Users\Admin\AppData\Local\Temp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\is-AQ67S.tmp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-AQ67S.tmp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp" /SL5="$3002E,2217402,387072,C:\Users\Admin\AppData\Local\Temp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1484
- - C:\Program Files (x86)\FHOsoftFR\FRec29\FRec29.exe
    "C:\Program Files (x86)\FHOsoftFR\FRec29\FRec29.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of WriteProcessMemory
    PID:4332
  - - C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\0OSRwktek.exe
      4⤵
      Executes dropped EXE
      PID:2360
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec29.exe" /f & erase "C:\Program Files (x86)\FHOsoftFR\FRec29\FRec29.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:992
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec29.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4836

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)\FHOsoftFR\FRec29\FRec29.exe

Filesize
2.0MB

MD5
20233676316b5e709150af641c191c10

SHA1
ce28593eb071dba42c941ecd04fefe97f659c8d4

SHA256
a5df53f0b8d5e2dfb9ef7dd998d6208fefb3ee5355894c2e358776ad975c9e1d

SHA512
996776dc046e311d6e4b80b9edc0c0bafec3f8d926c642991c6609cd6f1d9965af9dcba958d2cde0752bec6f60a986c7cae0f01b42da4dfb9ef7bee5cd74ef7a

Download Submit
C:\Program Files (x86)\FHOsoftFR\FRec29\FRec29.exe

Filesize
2.0MB

MD5
20233676316b5e709150af641c191c10

SHA1
ce28593eb071dba42c941ecd04fefe97f659c8d4

SHA256
a5df53f0b8d5e2dfb9ef7dd998d6208fefb3ee5355894c2e358776ad975c9e1d

SHA512
996776dc046e311d6e4b80b9edc0c0bafec3f8d926c642991c6609cd6f1d9965af9dcba958d2cde0752bec6f60a986c7cae0f01b42da4dfb9ef7bee5cd74ef7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-349UA.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-349UA.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-349UA.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AQ67S.tmp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AQ67S.tmp\ba5cdd881f9f00d471e168281e367ea1ea8744a79ee488c23f0fb1c61b321a6d.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\0OSRwktek.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\0OSRwktek.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1484-140-0x0000000002281000-0x0000000002283000-memory.dmp

Filesize
8KB

Download
memory/2252-132-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2252-145-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2252-159-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2252-134-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/4332-147-0x0000000000400000-0x0000000001406000-memory.dmp

Filesize
16.0MB

Download
memory/4332-148-0x0000000000400000-0x0000000001406000-memory.dmp

Filesize
16.0MB

Download
memory/4332-152-0x0000000000400000-0x0000000001406000-memory.dmp

Filesize
16.0MB

Download
memory/4332-153-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4332-158-0x0000000000400000-0x0000000001406000-memory.dmp

Filesize
16.0MB

Download
memory/4332-146-0x0000000000400000-0x0000000001406000-memory.dmp

Filesize
16.0MB

Download