gcleaner | 5ab2cc3237c2857bc3943ded65eeea7cc88bd1dcfbb170e8069def2ca54e46ee

Analysis

max time kernel
56s
max time network
57s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
22-03-2023 19:14

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General

Target

2ed3738fc99a3438a6f953a317fd00c8.exe
Size

2.1MB
MD5

2ed3738fc99a3438a6f953a317fd00c8
SHA1

ece3ef5cbb78802613273df3f3b226c39d2ac7c7
SHA256

5ab2cc3237c2857bc3943ded65eeea7cc88bd1dcfbb170e8069def2ca54e46ee
SHA512

7c041252f986f8dac40833092ea1e204edaa162371b6d8bb9fde7c1688fe73e7ed9b36072e606d3c10b6ffada2d1c9012c78dee6085f28469528f86dfffd428c
SSDEEP

49152:EGlJfs2YQmXbs2nOFx4AFZzBO0M881PA/XW/cBm5dlLYp:5GQ6g5Ey3o8wE9BsPYp

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
Executes dropped EXE 3 IoCs

Processes:

is-2P51F.tmpFRec322.exeUHfKkJqs1C.exe

pid process

1700 is-2P51F.tmp
1184 FRec322.exe
280 UHfKkJqs1C.exe
Loads dropped DLL 6 IoCs

Processes:

2ed3738fc99a3438a6f953a317fd00c8.exeis-2P51F.tmpFRec322.exe

pid process

2012 2ed3738fc99a3438a6f953a317fd00c8.exe
1700 is-2P51F.tmp
1700 is-2P51F.tmp
1700 is-2P51F.tmp
1700 is-2P51F.tmp
1184 FRec322.exe
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

pid	process
1700	is-2P51F.tmp
1184	FRec322.exe
280	UHfKkJqs1C.exe

pid	process
2012	2ed3738fc99a3438a6f953a317fd00c8.exe
1700	is-2P51F.tmp
1700	is-2P51F.tmp
1700	is-2P51F.tmp
1700	is-2P51F.tmp
1184	FRec322.exe

Drops file in Program Files directory 9 IoCs

Processes:

is-2P51F.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\is-S5DAI.tmp	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\is-D6JKM.tmp	is-2P51F.tmp
File opened for modification	C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat	is-2P51F.tmp
File opened for modification	C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\data\is-MECRJ.tmp	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\is-J9EKC.tmp	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\is-LQRFI.tmp	is-2P51F.tmp
File created	C:\Program Files (x86)\FJAsoftFR\FRec322\is-MNJV6.tmp	is-2P51F.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

872 taskkill.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

FRec322.exe

pid process

1184 FRec322.exe
1184 FRec322.exe
1184 FRec322.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 872 taskkill.exe

pid	process
872	taskkill.exe

pid	process
1184	FRec322.exe
1184	FRec322.exe
1184	FRec322.exe

description	pid	process
Token: SeDebugPrivilege	872	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2ed3738fc99a3438a6f953a317fd00c8.exeis-2P51F.tmpFRec322.execmd.exe

description	pid	process	target process
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 2012 wrote to memory of 1700	2012	2ed3738fc99a3438a6f953a317fd00c8.exe	is-2P51F.tmp
PID 1700 wrote to memory of 1184	1700	is-2P51F.tmp	FRec322.exe
PID 1700 wrote to memory of 1184	1700	is-2P51F.tmp	FRec322.exe
PID 1700 wrote to memory of 1184	1700	is-2P51F.tmp	FRec322.exe
PID 1700 wrote to memory of 1184	1700	is-2P51F.tmp	FRec322.exe
PID 1184 wrote to memory of 280	1184	FRec322.exe	UHfKkJqs1C.exe
PID 1184 wrote to memory of 280	1184	FRec322.exe	UHfKkJqs1C.exe
PID 1184 wrote to memory of 280	1184	FRec322.exe	UHfKkJqs1C.exe
PID 1184 wrote to memory of 280	1184	FRec322.exe	UHfKkJqs1C.exe
PID 1184 wrote to memory of 1088	1184	FRec322.exe	cmd.exe
PID 1184 wrote to memory of 1088	1184	FRec322.exe	cmd.exe
PID 1184 wrote to memory of 1088	1184	FRec322.exe	cmd.exe
PID 1184 wrote to memory of 1088	1184	FRec322.exe	cmd.exe
PID 1088 wrote to memory of 872	1088	cmd.exe	taskkill.exe
PID 1088 wrote to memory of 872	1088	cmd.exe	taskkill.exe
PID 1088 wrote to memory of 872	1088	cmd.exe	taskkill.exe
PID 1088 wrote to memory of 872	1088	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\2ed3738fc99a3438a6f953a317fd00c8.exe
"C:\Users\Admin\AppData\Local\Temp\2ed3738fc99a3438a6f953a317fd00c8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\is-BFKR3.tmp\is-2P51F.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-BFKR3.tmp\is-2P51F.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\2ed3738fc99a3438a6f953a317fd00c8.exe" 1916446 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe
    "C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1184
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\UHfKkJqs1C.exe
      4⤵
      Executes dropped EXE
      PID:280
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec322.exe" /f & erase "C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1088
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec322.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:872

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)\FJAsoftFR\FRec322\FRec322.exe

Filesize
2.6MB

MD5
cc67e673d19d51ef9c54d75578d661e4

SHA1
0923695dceb8bda477667dfe93c0e993e8a743a5

SHA256
e6aa961294c7dcd53bc0020957809df3337f5d1d11df8eea6900b50de60ded5b

SHA512
862e5958b4ebda1abb4b714d229363c592b6b1d1f2f49b589f341dc012e65081cf515bf936e3a533c2cd91c802ec4e9eb062d5758e40596d32c20e0587db2f20

Download Submit
C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe

Filesize
2.6MB

MD5
cc67e673d19d51ef9c54d75578d661e4

SHA1
0923695dceb8bda477667dfe93c0e993e8a743a5

SHA256
e6aa961294c7dcd53bc0020957809df3337f5d1d11df8eea6900b50de60ded5b

SHA512
862e5958b4ebda1abb4b714d229363c592b6b1d1f2f49b589f341dc012e65081cf515bf936e3a533c2cd91c802ec4e9eb062d5758e40596d32c20e0587db2f20

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\UOYUJSME\dll[2].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BFKR3.tmp\is-2P51F.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BFKR3.tmp\is-2P51F.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\UHfKkJqs1C.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe

Filesize
2.6MB

MD5
cc67e673d19d51ef9c54d75578d661e4

SHA1
0923695dceb8bda477667dfe93c0e993e8a743a5

SHA256
e6aa961294c7dcd53bc0020957809df3337f5d1d11df8eea6900b50de60ded5b

SHA512
862e5958b4ebda1abb4b714d229363c592b6b1d1f2f49b589f341dc012e65081cf515bf936e3a533c2cd91c802ec4e9eb062d5758e40596d32c20e0587db2f20

Download Submit
\Users\Admin\AppData\Local\Temp\is-6PDQ0.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-6PDQ0.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-6PDQ0.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-BFKR3.tmp\is-2P51F.tmp

Filesize
659KB

MD5
63bdf487b26c0886dbced14bab4d4257

SHA1
e3621d870aa54d552861f1c71dea1fb36d71def6

SHA256
ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a

SHA512
b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\UHfKkJqs1C.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1184-93-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/1184-92-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/1184-101-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/1184-105-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1184-109-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/1184-132-0x0000000000400000-0x00000000014A0000-memory.dmp

Filesize
16.6MB

Download
memory/1700-100-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1700-91-0x0000000003C10000-0x0000000004CB0000-memory.dmp

Filesize
16.6MB

Download
memory/1700-133-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1700-90-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2012-54-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2012-99-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2012-134-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download