gcleaner | 5d54631abbcbf876e7b5df333b506866fa50054cabe638f7856a7b4e1e0883ca

General

Target

0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe
Size

2.2MB
MD5

b342724316e09b5202c34987583fe0d2
SHA1

50524d1812e06c9810132d8bc8a0b08abb2d63ae
SHA256

0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2
SHA512

b79dc71732f6a150c7ca4791f05283171c8834da6a51a0bd66648439b7270be1fd7679b4adf83354324aa212d8f88e6732d0f9e9061e1b86962951a4c95d6f99
SSDEEP

49152:d3Zy1X7RRi/S8NwWSyJi2bnTwYRNYDdLcgh4YdJLCgv2MR:XmXv8xSWSK5Ruzxbv2MR

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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	FRec24.exe

Executes dropped EXE 3 IoCs

pid	Process
2280	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
2744	FRec24.exe
1408	lniOQ.exe

Loads dropped DLL 1 IoCs

pid	Process
2280	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.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\is-MMO7M.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-5A94L.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-LPGN9.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\data\is-T1GP9.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File opened for modification	C:\Program Files (x86)\FHJsoftFR\FRec24\unins000.dat	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File opened for modification	C:\Program Files (x86)\FHJsoftFR\FRec24\FRec24.exe	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\unins000.dat	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-9UC1U.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
File created	C:\Program Files (x86)\FHJsoftFR\FRec24\is-GK9MN.tmp	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.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
4756	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2744	FRec24.exe
2744	FRec24.exe
2744	FRec24.exe
2744	FRec24.exe
2744	FRec24.exe
2744	FRec24.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4756	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 2280	4488	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe	81
PID 4488 wrote to memory of 2280	4488	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe	81
PID 4488 wrote to memory of 2280	4488	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe	81
PID 2280 wrote to memory of 2744	2280	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp	82
PID 2280 wrote to memory of 2744	2280	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp	82
PID 2280 wrote to memory of 2744	2280	0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp	82
PID 2744 wrote to memory of 1408	2744	FRec24.exe	83
PID 2744 wrote to memory of 1408	2744	FRec24.exe	83
PID 2744 wrote to memory of 1408	2744	FRec24.exe	83
PID 2744 wrote to memory of 2184	2744	FRec24.exe	91
PID 2744 wrote to memory of 2184	2744	FRec24.exe	91
PID 2744 wrote to memory of 2184	2744	FRec24.exe	91
PID 2184 wrote to memory of 4756	2184	cmd.exe	93
PID 2184 wrote to memory of 4756	2184	cmd.exe	93
PID 2184 wrote to memory of 4756	2184	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe
"C:\Users\Admin\AppData\Local\Temp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Users\Admin\AppData\Local\Temp\is-MBL7R.tmp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MBL7R.tmp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp" /SL5="$80064,2024875,345600,C:\Users\Admin\AppData\Local\Temp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2280
- - 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:2744
  - - C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\lniOQ.exe
      4⤵
      Executes dropped EXE
      PID:1408
  - - 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:2184
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec24.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4756

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
118ee2c54a3b7edac428ad309f6268fe

SHA1
e2c6020f5843e8f906bc895c275078ce2a7c243b

SHA256
cd1935ee91b4c7900a1cba9d7b59c22fc5f02d9280f6f8181b350e76faa3de31

SHA512
20e53c31a58ca51117053984fd5da43a2de812ed7109755af8877eaffd9f7ec255af22cbcdb99e12f4d32056c7f26b34ee76fe1ac4e43a7a8a0c9f35c4b27e7b

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

Filesize
1.8MB

MD5
118ee2c54a3b7edac428ad309f6268fe

SHA1
e2c6020f5843e8f906bc895c275078ce2a7c243b

SHA256
cd1935ee91b4c7900a1cba9d7b59c22fc5f02d9280f6f8181b350e76faa3de31

SHA512
20e53c31a58ca51117053984fd5da43a2de812ed7109755af8877eaffd9f7ec255af22cbcdb99e12f4d32056c7f26b34ee76fe1ac4e43a7a8a0c9f35c4b27e7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FPDU8.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MBL7R.tmp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MBL7R.tmp\0ef3fcc6aa34956c10e6454490c43bc7352770cf5d05a2b11b8e9c41812dfbc2.tmp

Filesize
696KB

MD5
d76329b30db65f61d55b20f36b56da26

SHA1
5e4c77b723ae8f05b3ae6afeee735a4355f00663

SHA256
229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d

SHA512
a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d

Download Submit
C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\lniOQ.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\lniOQ.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/2744-143-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/2744-144-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/2744-142-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/2744-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/2744-152-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/2744-155-0x0000000000400000-0x00000000013D6000-memory.dmp

Filesize
15.8MB

Download
memory/4488-132-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4488-151-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4488-137-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4488-156-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download

Analysis

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