gcleaner | ab1dc5a4244af2a20966fa5f163db1394f7eb3b45d48f57d307d3ae0d18c8058

General

Target

d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe
Size

2.2MB
MD5

b066cf877c0d3bf70475d9f5a656143d
SHA1

ef1837c7b61013524bc7800dcb5438ee315ff02c
SHA256

d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6
SHA512

4135d747d9ca434b1c97c1f7ac62ca9406f587549b035303bf99ea30d722203eb5a23f742cd2a4c74390da861dc6122f8dbb30b4579637e67d9f9a61a822544e
SSDEEP

49152:d3Z0tg7QSmghqYxeme9qomrvikGbRNDRklVqLFBoxvdVYZLCgv2MR:X0qFk8vikGbXDRklVqJBox01v2MR

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	FRec24.exe

Executes dropped EXE 3 IoCs

pid	Process
4708	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
4496	FRec24.exe
1564	lUis5i3CFSc.exe

Loads dropped DLL 1 IoCs

pid	Process
4708	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.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)\FHJsoftFR\FRec24\unins000.dat	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-KDG7E.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\data\is-AM1P1.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-3OON1.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File opened for modification	C:\Program Files (x86)\FHJsoftFR\FRec24\unins000.dat	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File opened for modification	C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-CSM9B.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-HAOTL.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-MKVDL.tmp	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.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
1524	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4496	FRec24.exe
4496	FRec24.exe
4496	FRec24.exe
4496	FRec24.exe
4496	FRec24.exe
4496	FRec24.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 4708	4212	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe	79
PID 4212 wrote to memory of 4708	4212	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe	79
PID 4212 wrote to memory of 4708	4212	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe	79
PID 4708 wrote to memory of 4496	4708	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp	80
PID 4708 wrote to memory of 4496	4708	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp	80
PID 4708 wrote to memory of 4496	4708	d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp	80
PID 4496 wrote to memory of 1564	4496	FRec24.exe	81
PID 4496 wrote to memory of 1564	4496	FRec24.exe	81
PID 4496 wrote to memory of 1564	4496	FRec24.exe	81
PID 4496 wrote to memory of 1240	4496	FRec24.exe	83
PID 4496 wrote to memory of 1240	4496	FRec24.exe	83
PID 4496 wrote to memory of 1240	4496	FRec24.exe	83
PID 1240 wrote to memory of 1524	1240	cmd.exe	85
PID 1240 wrote to memory of 1524	1240	cmd.exe	85
PID 1240 wrote to memory of 1524	1240	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe
"C:\Users\Admin\AppData\Local\Temp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Users\Admin\AppData\Local\Temp\is-LJJ1B.tmp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LJJ1B.tmp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp" /SL5="$9003A,2083688,345600,C:\Users\Admin\AppData\Local\Temp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4708
- - C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe
    "C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4496
  - - C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\lUis5i3CFSc.exe
      4⤵
      Executes dropped EXE
      PID:1564
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec24.exe" /f & erase "C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1240
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec24.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1524

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)\FHJsoftFR\FRec24\FRec24.exe

Filesize
1.8MB

MD5
e1b13401bf679528f9bc27bc5fcb0dad

SHA1
b0f5346f243598f95917b40022c23edea998eb49

SHA256
8737d08518e2d7de212e1955d494f522e3dcc518ed95a8a78152acb03c34fee9

SHA512
ea3194c32fc81e409fc88269b444c54ebef277f37c50e13704707c021fd418d69d73d4cae967037db36ebb65a1c4b9793883e5bb548971b07484a27e132be437

Download Submit
C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe

Filesize
1.8MB

MD5
e1b13401bf679528f9bc27bc5fcb0dad

SHA1
b0f5346f243598f95917b40022c23edea998eb49

SHA256
8737d08518e2d7de212e1955d494f522e3dcc518ed95a8a78152acb03c34fee9

SHA512
ea3194c32fc81e409fc88269b444c54ebef277f37c50e13704707c021fd418d69d73d4cae967037db36ebb65a1c4b9793883e5bb548971b07484a27e132be437

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LJJ1B.tmp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LJJ1B.tmp\d52e0d5d4a1af3a9d2c83d6d7afca153a7b1d219f999e4e8f2315c79487b02d6.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U3BJH.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\lUis5i3CFSc.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\lUis5i3CFSc.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/4212-156-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4212-132-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4212-151-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4212-134-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4496-143-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/4496-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4496-144-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/4496-152-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/4496-142-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/4496-155-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download

Analysis

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