gcleaner | 3e3f7bd7b8aacbb67c7a64dc05449f4ebc4da4d9152ac81d21a93fd3d23335e9

Analysis

max time kernel
70s
max time network
77s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
18/01/2023, 04:12

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
file.exe
Size 1.9MB
Sample230118-eskaeshd48
SHA256 3e3f7bd7b8aacbb67c7a64dc05449f4ebc4da4d9152ac81d21a93fd3d23335e9
MD5 b908d00d8249b84d5a48d7f19d63c2f8
SHA1 84670dee8d5478f6f815f46e1272866fce15c749
SHA512 3573d9afbc94f1199336b3669ceed33594a17125549f46a38dc456d8d09ccad358550fa2e3522455d6e2e9d1aeb90351c3971a65166ebcda9d33b224243fbe77
SSDEEP 49152:k153rLpxYfTh8mFtRqgbFizonFrHhE7iSg2Gf:sZrF6fZDRqgbFkonZ+7iSg2Gf
MD5 SHA1 SHA512 SSDEEP

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

pid	Process
1296	file.tmp
664	finalrecovery.exe
652	ie551zqgi5Tf.exe

Loads dropped DLL 6 IoCs

pid	Process
1536	file.exe
1296	file.tmp
1296	file.tmp
1296	file.tmp
1296	file.tmp
664	finalrecovery.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

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\is-2002U.tmp	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\data\is-AREET.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FetsoftFR\FinalRecovery\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\is-17U4M.tmp	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\is-2L3GB.tmp	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\is-ACT2L.tmp	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\is-J2FAG.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe	file.tmp
File created	C:\Program Files (x86)\FetsoftFR\FinalRecovery\unins000.dat	file.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
1156	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
664	finalrecovery.exe
664	finalrecovery.exe
664	finalrecovery.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1536 wrote to memory of 1296	1536	file.exe	28
PID 1296 wrote to memory of 664	1296	file.tmp	29
PID 1296 wrote to memory of 664	1296	file.tmp	29
PID 1296 wrote to memory of 664	1296	file.tmp	29
PID 1296 wrote to memory of 664	1296	file.tmp	29
PID 664 wrote to memory of 652	664	finalrecovery.exe	30
PID 664 wrote to memory of 652	664	finalrecovery.exe	30
PID 664 wrote to memory of 652	664	finalrecovery.exe	30
PID 664 wrote to memory of 652	664	finalrecovery.exe	30
PID 664 wrote to memory of 1160	664	finalrecovery.exe	33
PID 664 wrote to memory of 1160	664	finalrecovery.exe	33
PID 664 wrote to memory of 1160	664	finalrecovery.exe	33
PID 664 wrote to memory of 1160	664	finalrecovery.exe	33
PID 1160 wrote to memory of 1156	1160	cmd.exe	35
PID 1160 wrote to memory of 1156	1160	cmd.exe	35
PID 1160 wrote to memory of 1156	1160	cmd.exe	35
PID 1160 wrote to memory of 1156	1160	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Local\Temp\is-659TB.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-659TB.tmp\file.tmp" /SL5="$90126,1709476,211456,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1296
- - C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe
    "C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:664
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ie551zqgi5Tf.exe
      4⤵
      Executes dropped EXE
      PID:652
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1160
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "finalrecovery.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1156

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

Loading Replay Monitor...

Downloads

finalrecovery.exe

Path C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe
Size 1.8MB
SHA256 43f8da5f1c8af3fe248e68f796de0f9dd8a787f250195f633bc197af77c0e99f
MD5 81cb4401997c6cf4049a2cbf5ea7de63
SHA1 739a94c42cbbfb79b979b983ebc1468dc0322de1
SHA512 4a3b658d2e3ffc5f2f02dc1fa8a105688c3920a8fe377d6456f36cd6b6d2b4eddb0d1813f728ab21936626bcccf47796ef24bec5962e65f65af1f9691940a3d7
SSDEEP 24576:DWA7ySOetzfl4KoCf3q8d8kJt6EK2tb4QnNta1B0JkmMKY0cywxvEO:xVYlmTfVnCj0JDkKO
MD5 SHA1 SHA512 SSDEEP

Submit Download

finalrecovery.exe

Path C:\Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe
Size 1.8MB
SHA256 43f8da5f1c8af3fe248e68f796de0f9dd8a787f250195f633bc197af77c0e99f
MD5 81cb4401997c6cf4049a2cbf5ea7de63
SHA1 739a94c42cbbfb79b979b983ebc1468dc0322de1
SHA512 4a3b658d2e3ffc5f2f02dc1fa8a105688c3920a8fe377d6456f36cd6b6d2b4eddb0d1813f728ab21936626bcccf47796ef24bec5962e65f65af1f9691940a3d7
SSDEEP 24576:DWA7ySOetzfl4KoCf3q8d8kJt6EK2tb4QnNta1B0JkmMKY0cywxvEO:xVYlmTfVnCj0JDkKO
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-659TB.tmp\file.tmp
Size 849KB
SHA256 9914c9be261849a293479b801cf4049396731004420607503bc64ade3d680da4
MD5 f54afdf7bc5b13282407c3ce5a5e79fb
SHA1 c7387741f1d6662e83ca4b91fe999af7a72bde40
SHA512 76e37137070d1fdd5cc3b3a2055d611c00b2456fe64e20ba5365195507c98c1db1af2473fc291da7ec2b9499084e8013fb5047b56aeb14ffa5ac948c7d8dc03a
SSDEEP 24576:8tCUA4arPEn37TzH7A6nw9yzeESUFWHc751XEx9R/:8kdrP837TzH7A6nV7FMcdWT
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-659TB.tmp\file.tmp
Size 849KB
SHA256 9914c9be261849a293479b801cf4049396731004420607503bc64ade3d680da4
MD5 f54afdf7bc5b13282407c3ce5a5e79fb
SHA1 c7387741f1d6662e83ca4b91fe999af7a72bde40
SHA512 76e37137070d1fdd5cc3b3a2055d611c00b2456fe64e20ba5365195507c98c1db1af2473fc291da7ec2b9499084e8013fb5047b56aeb14ffa5ac948c7d8dc03a
SSDEEP 24576:8tCUA4arPEn37TzH7A6nw9yzeESUFWHc751XEx9R/:8kdrP837TzH7A6nV7FMcdWT
MD5 SHA1 SHA512 SSDEEP

Submit Download

ie551zqgi5Tf.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ie551zqgi5Tf.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

finalrecovery.exe

Path \Program Files (x86)\FetsoftFR\FinalRecovery\finalrecovery.exe
Size 1.8MB
SHA256 43f8da5f1c8af3fe248e68f796de0f9dd8a787f250195f633bc197af77c0e99f
MD5 81cb4401997c6cf4049a2cbf5ea7de63
SHA1 739a94c42cbbfb79b979b983ebc1468dc0322de1
SHA512 4a3b658d2e3ffc5f2f02dc1fa8a105688c3920a8fe377d6456f36cd6b6d2b4eddb0d1813f728ab21936626bcccf47796ef24bec5962e65f65af1f9691940a3d7
SSDEEP 24576:DWA7ySOetzfl4KoCf3q8d8kJt6EK2tb4QnNta1B0JkmMKY0cywxvEO:xVYlmTfVnCj0JDkKO
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-659TB.tmp\file.tmp
Size 849KB
SHA256 9914c9be261849a293479b801cf4049396731004420607503bc64ade3d680da4
MD5 f54afdf7bc5b13282407c3ce5a5e79fb
SHA1 c7387741f1d6662e83ca4b91fe999af7a72bde40
SHA512 76e37137070d1fdd5cc3b3a2055d611c00b2456fe64e20ba5365195507c98c1db1af2473fc291da7ec2b9499084e8013fb5047b56aeb14ffa5ac948c7d8dc03a
SSDEEP 24576:8tCUA4arPEn37TzH7A6nw9yzeESUFWHc751XEx9R/:8kdrP837TzH7A6nV7FMcdWT
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-IHB8G.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

Submit Download

_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-IHB8G.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-IHB8G.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

ie551zqgi5Tf.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ie551zqgi5Tf.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/664-71-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-79-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-86-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-72-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-73-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-83-0x0000000000400000-0x00000000013CB000-memory.dmp

Download

memory/664-80-0x0000000010000000-0x000000001001B000-memory.dmp

Download

memory/1296-78-0x00000000035F0000-0x00000000045BB000-memory.dmp

Download

memory/1296-70-0x00000000035F0000-0x00000000045BB000-memory.dmp

Download

memory/1536-77-0x0000000000400000-0x000000000043B000-memory.dmp

Download

memory/1536-58-0x0000000000400000-0x000000000043B000-memory.dmp

Download

memory/1536-54-0x0000000076581000-0x0000000076583000-memory.dmp

Download

memory/1536-87-0x0000000000400000-0x000000000043B000-memory.dmp

Download

memory/1536-55-0x0000000000400000-0x000000000043B000-memory.dmp

Download