gcleaner | 2c0f47d473410fdfd98c793a99d9f3343db063ebbe99d321858ba4763004494a

General

Target

file.exe
Size

1.7MB
MD5

96d2c62bc193a4785f651fe072300b30
SHA1

e626ae2ed82c09e4b72f4f1b4b3641740271bc56
SHA256

2c0f47d473410fdfd98c793a99d9f3343db063ebbe99d321858ba4763004494a
SHA512

e399d45c17ebbccebe756cd63f3837f216737aaa6bd2e0e9c9e9e89914e78bd0a9ba79d4a6dce73b17dbb4e25e1acda2bf1cb3f9ed44ae5e5da1242a462bc782
SSDEEP

49152:EGlJfsF4O0c9yLts8kWYBh/JbFCuS+VHYZ5dlLYp:5QPkYBh/JxCK4/PYp

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:

FRec328.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation FRec328.exe
Executes dropped EXE 3 IoCs

Processes:

is-BGKK7.tmpFRec328.exeHBq6cdIzEs.exe

pid process

4236 is-BGKK7.tmp
2360 FRec328.exe
4736 HBq6cdIzEs.exe
Loads dropped DLL 1 IoCs

Processes:

is-BGKK7.tmp

pid process

4236 is-BGKK7.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	FRec328.exe

pid	process
4236	is-BGKK7.tmp
2360	FRec328.exe
4736	HBq6cdIzEs.exe

pid	process
4236	is-BGKK7.tmp

Drops file in Program Files directory 9 IoCs

Processes:

is-BGKK7.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\is-MBOBK.tmp	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\data\is-91IP5.tmp	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\unins000.dat	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\is-7L794.tmp	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\is-867DG.tmp	is-BGKK7.tmp
File opened for modification	C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\is-6IBDM.tmp	is-BGKK7.tmp
File created	C:\Program Files (x86)\FJHsoftFR\FRec328\is-JA6BG.tmp	is-BGKK7.tmp
File opened for modification	C:\Program Files (x86)\FJHsoftFR\FRec328\unins000.dat	is-BGKK7.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

4524 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FRec328.exe

pid process

2360 FRec328.exe
2360 FRec328.exe
2360 FRec328.exe
2360 FRec328.exe
2360 FRec328.exe
2360 FRec328.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4524 taskkill.exe

pid	process
4524	taskkill.exe

pid	process
2360	FRec328.exe
2360	FRec328.exe
2360	FRec328.exe
2360	FRec328.exe
2360	FRec328.exe
2360	FRec328.exe

description	pid	process
Token: SeDebugPrivilege	4524	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeis-BGKK7.tmpFRec328.execmd.exe

description	pid	process	target process
PID 644 wrote to memory of 4236	644	file.exe	is-BGKK7.tmp
PID 644 wrote to memory of 4236	644	file.exe	is-BGKK7.tmp
PID 644 wrote to memory of 4236	644	file.exe	is-BGKK7.tmp
PID 4236 wrote to memory of 2360	4236	is-BGKK7.tmp	FRec328.exe
PID 4236 wrote to memory of 2360	4236	is-BGKK7.tmp	FRec328.exe
PID 4236 wrote to memory of 2360	4236	is-BGKK7.tmp	FRec328.exe
PID 2360 wrote to memory of 4736	2360	FRec328.exe	HBq6cdIzEs.exe
PID 2360 wrote to memory of 4736	2360	FRec328.exe	HBq6cdIzEs.exe
PID 2360 wrote to memory of 4736	2360	FRec328.exe	HBq6cdIzEs.exe
PID 2360 wrote to memory of 1212	2360	FRec328.exe	cmd.exe
PID 2360 wrote to memory of 1212	2360	FRec328.exe	cmd.exe
PID 2360 wrote to memory of 1212	2360	FRec328.exe	cmd.exe
PID 1212 wrote to memory of 4524	1212	cmd.exe	taskkill.exe
PID 1212 wrote to memory of 4524	1212	cmd.exe	taskkill.exe
PID 1212 wrote to memory of 4524	1212	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:644
- C:\Users\Admin\AppData\Local\Temp\is-NMV92.tmp\is-BGKK7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NMV92.tmp\is-BGKK7.tmp" /SL4 $90048 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1592324 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4236
- - C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe
    "C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\HBq6cdIzEs.exe
      4⤵
      Executes dropped EXE
      PID:4736
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec328.exe" /f & erase "C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1212
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec328.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe

Filesize
1.5MB

MD5
cc7c837f289291a86655acc7a84cdfbe

SHA1
e2fcf40553ecfb05e6f57d566d7df258f44b4578

SHA256
dea3fb968700b88c10bc0922ecbbeac6b1c0d2076626763b42a68b3f4f395573

SHA512
47b50fdc930843f3755f721d22cd3906fc21f31fec842be7d3840ae6698110fe08c264a06f21da97eaaf29fd376e3cfb8a0c2c91f583a50ac6644c01122b10dd

Download Submit
C:\Program Files (x86)\FJHsoftFR\FRec328\FRec328.exe

Filesize
1.5MB

MD5
cc7c837f289291a86655acc7a84cdfbe

SHA1
e2fcf40553ecfb05e6f57d566d7df258f44b4578

SHA256
dea3fb968700b88c10bc0922ecbbeac6b1c0d2076626763b42a68b3f4f395573

SHA512
47b50fdc930843f3755f721d22cd3906fc21f31fec842be7d3840ae6698110fe08c264a06f21da97eaaf29fd376e3cfb8a0c2c91f583a50ac6644c01122b10dd

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-FCVV2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NMV92.tmp\is-BGKK7.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NMV92.tmp\is-BGKK7.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\HBq6cdIzEs.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\HBq6cdIzEs.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/644-133-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/644-198-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/644-178-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2360-181-0x0000000000400000-0x0000000001380000-memory.dmp

Filesize
15.5MB

Download
memory/2360-173-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/2360-196-0x0000000000400000-0x0000000001380000-memory.dmp

Filesize
15.5MB

Download
memory/2360-165-0x0000000000400000-0x0000000001380000-memory.dmp

Filesize
15.5MB

Download
memory/4236-179-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4236-197-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4236-148-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download

Analysis

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