gcleaner | 10c567dbaa0e65bbd01765ace55b1b8265bc160692a05521323483a955061966

General

Target

file.exe
Size

1.9MB
MD5

b6866b6b89cc063ac98a60995ebe49c4
SHA1

28428a0e5e4d4a0a0538fc65b365b0dac9e780ec
SHA256

10c567dbaa0e65bbd01765ace55b1b8265bc160692a05521323483a955061966
SHA512

0f73da0f151411fecbf2b4ead4f0eca13ccc2615d941ff804605a7667237293b31263beafe865d0b8c21b7e70cb61203284b5b37ee53506199bed0bb6dd01138
SSDEEP

49152:EGlJfs7nlVdaZULj7Sdny1X0QWbJJoruNbepSy5dlLYp:5On51v7Sw1gJeUE3PYp

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

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:

FRec323.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation FRec323.exe
Executes dropped EXE 3 IoCs

Processes:

is-SFC2R.tmpFRec323.exeKTqrYtsCwzLc1M.exe

pid process

3184 is-SFC2R.tmp
4692 FRec323.exe
4824 KTqrYtsCwzLc1M.exe
Loads dropped DLL 1 IoCs

Processes:

is-SFC2R.tmp

pid process

3184 is-SFC2R.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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	FRec323.exe

pid	process
3184	is-SFC2R.tmp
4692	FRec323.exe
4824	KTqrYtsCwzLc1M.exe

pid	process
3184	is-SFC2R.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-SFC2R.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\data\is-2MTUT.tmp	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\unins000.dat	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-93LCG.tmp	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-0BP0O.tmp	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-4LIBH.tmp	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-L4FN4.tmp	is-SFC2R.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-99VTA.tmp	is-SFC2R.tmp
File opened for modification	C:\Program Files (x86)\FJBsoftFR\FRec323\unins000.dat	is-SFC2R.tmp
File opened for modification	C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe	is-SFC2R.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

4836 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec323.exe

pid process

4692 FRec323.exe
4692 FRec323.exe
4692 FRec323.exe
4692 FRec323.exe
4692 FRec323.exe
4692 FRec323.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4836 taskkill.exe

pid	process
4836	taskkill.exe

pid	process
4692	FRec323.exe
4692	FRec323.exe
4692	FRec323.exe
4692	FRec323.exe
4692	FRec323.exe
4692	FRec323.exe

description	pid	process
Token: SeDebugPrivilege	4836	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-SFC2R.tmpFRec323.execmd.exe

description	pid	process	target process
PID 2068 wrote to memory of 3184	2068	file.exe	is-SFC2R.tmp
PID 2068 wrote to memory of 3184	2068	file.exe	is-SFC2R.tmp
PID 2068 wrote to memory of 3184	2068	file.exe	is-SFC2R.tmp
PID 3184 wrote to memory of 4692	3184	is-SFC2R.tmp	FRec323.exe
PID 3184 wrote to memory of 4692	3184	is-SFC2R.tmp	FRec323.exe
PID 3184 wrote to memory of 4692	3184	is-SFC2R.tmp	FRec323.exe
PID 4692 wrote to memory of 4824	4692	FRec323.exe	KTqrYtsCwzLc1M.exe
PID 4692 wrote to memory of 4824	4692	FRec323.exe	KTqrYtsCwzLc1M.exe
PID 4692 wrote to memory of 4824	4692	FRec323.exe	KTqrYtsCwzLc1M.exe
PID 4692 wrote to memory of 564	4692	FRec323.exe	cmd.exe
PID 4692 wrote to memory of 564	4692	FRec323.exe	cmd.exe
PID 4692 wrote to memory of 564	4692	FRec323.exe	cmd.exe
PID 564 wrote to memory of 4836	564	cmd.exe	taskkill.exe
PID 564 wrote to memory of 4836	564	cmd.exe	taskkill.exe
PID 564 wrote to memory of 4836	564	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:2068

C:\Users\Admin\AppData\Local\Temp\is-24S79.tmp\is-SFC2R.tmp
"C:\Users\Admin\AppData\Local\Temp\is-24S79.tmp\is-SFC2R.tmp" /SL4 $80032 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1768731 52736
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3184

C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
"C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4692

C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\KTqrYtsCwzLc1M.exe
4⤵
- Executes dropped EXE
PID:4824

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec323.exe" /f & erase "C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:564

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "FRec323.exe" /f
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4836

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
Filesize
2.2MB

MD5
d3b2b6e58a9d908bec2748691a8fabf0

SHA1
c3797bca6c72805d0247d96b5da7cba1e6c33ded

SHA256
0722c648c94c5e2bd29208ecf4d5d8f73a8a66407e1f50a50844713ffbed93df

SHA512
2e559b3c3281ef36e988fd282475e97883baf787dd4602ac49dad026c8fc668aa89ca4a1e0c7c579060877646add39ece27214b7f2fa73cea5541a3a53de1e27

Download Submit
C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
Filesize
2.2MB

MD5
d3b2b6e58a9d908bec2748691a8fabf0

SHA1
c3797bca6c72805d0247d96b5da7cba1e6c33ded

SHA256
0722c648c94c5e2bd29208ecf4d5d8f73a8a66407e1f50a50844713ffbed93df

SHA512
2e559b3c3281ef36e988fd282475e97883baf787dd4602ac49dad026c8fc668aa89ca4a1e0c7c579060877646add39ece27214b7f2fa73cea5541a3a53de1e27

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4VT6R2QM\dll[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-24S79.tmp\is-SFC2R.tmp
Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-24S79.tmp\is-SFC2R.tmp
Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-PV55A.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\KTqrYtsCwzLc1M.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\KTqrYtsCwzLc1M.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/2068-179-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2068-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2068-199-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3184-150-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/3184-180-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/3184-198-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4692-182-0x0000000000400000-0x000000000143E000-memory.dmp

Filesize
16.2MB

Download
memory/4692-174-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4692-197-0x0000000000400000-0x000000000143E000-memory.dmp

Filesize
16.2MB

Download
memory/4692-166-0x0000000000400000-0x000000000143E000-memory.dmp

Filesize
16.2MB

Download
memory/4692-165-0x0000000000400000-0x000000000143E000-memory.dmp

Filesize
16.2MB

Download

Analysis

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