gcleaner | 5826d77a200a0b8eb1ada410bf2ee562e5d78ba52a3d2a87080ebeb6e44d99a6

Analysis

max time kernel
55s
max time network
59s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/04/2023, 03:30

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General

Target
file.exe
Size 2.6MB
Sample230416-d2gp8agg49
SHA256 5826d77a200a0b8eb1ada410bf2ee562e5d78ba52a3d2a87080ebeb6e44d99a6
MD5 eb945a206a7e93657c855d4edd995342
SHA1 85d03d8b4e0700799080a26a08e2498f3d4ca8f6
SHA512 a8a20ecec35f187df2a00cce0e271369cf0d8aaea32d71ed369b6ccd8beee428b7c166cf191c4d8e18891a0ea7bb275ae25a3be7e80faae9dc0e464ee97e8952
SSDEEP 49152:zGlJfsx8Htpd+BQSBm1+yxQGch4dH9bMo1klpTG9WSW82WHygU:qA8HtpdNSBm1VF99QCSpTEWRvWSt
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
524	is-TMD6R.tmp
1628	Rec416.exe
1960	11Ux37lBCvj.exe

Loads dropped DLL 7 IoCs

pid	Process
1532	file.exe
524	is-TMD6R.tmp
524	is-TMD6R.tmp
524	is-TMD6R.tmp
524	is-TMD6R.tmp
524	is-TMD6R.tmp
1628	Rec416.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)\FKAsoftFR\Rec416\is-ABMQ6.tmp	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\is-UH18K.tmp	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\is-03EG0.tmp	is-TMD6R.tmp
File opened for modification	C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\unins000.dat	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\is-BCKLT.tmp	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\is-QSUBO.tmp	is-TMD6R.tmp
File created	C:\Program Files (x86)\FKAsoftFR\Rec416\data\is-3TLH7.tmp	is-TMD6R.tmp
File opened for modification	C:\Program Files (x86)\FKAsoftFR\Rec416\unins000.dat	is-TMD6R.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
1784	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1628	Rec416.exe
1628	Rec416.exe
1628	Rec416.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1784	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 1532 wrote to memory of 524	1532	file.exe	27
PID 524 wrote to memory of 1628	524	is-TMD6R.tmp	28
PID 524 wrote to memory of 1628	524	is-TMD6R.tmp	28
PID 524 wrote to memory of 1628	524	is-TMD6R.tmp	28
PID 524 wrote to memory of 1628	524	is-TMD6R.tmp	28
PID 1628 wrote to memory of 1960	1628	Rec416.exe	29
PID 1628 wrote to memory of 1960	1628	Rec416.exe	29
PID 1628 wrote to memory of 1960	1628	Rec416.exe	29
PID 1628 wrote to memory of 1960	1628	Rec416.exe	29
PID 1628 wrote to memory of 1456	1628	Rec416.exe	32
PID 1628 wrote to memory of 1456	1628	Rec416.exe	32
PID 1628 wrote to memory of 1456	1628	Rec416.exe	32
PID 1628 wrote to memory of 1456	1628	Rec416.exe	32
PID 1456 wrote to memory of 1784	1456	cmd.exe	34
PID 1456 wrote to memory of 1784	1456	cmd.exe	34
PID 1456 wrote to memory of 1784	1456	cmd.exe	34
PID 1456 wrote to memory of 1784	1456	cmd.exe	34

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:1532
- C:\Users\Admin\AppData\Local\Temp\is-7VPVS.tmp\is-TMD6R.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7VPVS.tmp\is-TMD6R.tmp" /SL4 $80126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2485665 56320
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe
    "C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1628
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\11Ux37lBCvj.exe
      4⤵
      Executes dropped EXE
      PID:1960
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "Rec416.exe" /f & erase "C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1456
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "Rec416.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1784

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

Rec416.exe

Path C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe
Size 3.2MB
SHA256 d1a64585d02427d800a9f7002862873a1041bb8e2be63402e43a38c8cfd9fbe9
MD5 5a14503281ab47239bcebd9b9bed506b
SHA1 f74f3a8438edde316f1dfc284d819e37f8589ade
SHA512 b3a4985ccefd638922531850142b41f7f7f615b91c6415db97fae1c6b76b8efab17e508c36f34d0a84c91bd87289a0a16feb862b0c7f6f6f01fe5715c7b2b9ee
SSDEEP 24576:tlVUu6baq87CYtXXubgKA91mXIYy0xFlZ6aBptW3zw/yZmUcYfPJ/U/m5volUntn:tlVUDBEPIXbyYKUColUE4ZIiNniUNGF8
MD5 SHA1 SHA512 SSDEEP

Submit Download

Rec416.exe

Path C:\Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe
Size 3.2MB
SHA256 d1a64585d02427d800a9f7002862873a1041bb8e2be63402e43a38c8cfd9fbe9
MD5 5a14503281ab47239bcebd9b9bed506b
SHA1 f74f3a8438edde316f1dfc284d819e37f8589ade
SHA512 b3a4985ccefd638922531850142b41f7f7f615b91c6415db97fae1c6b76b8efab17e508c36f34d0a84c91bd87289a0a16feb862b0c7f6f6f01fe5715c7b2b9ee
SSDEEP 24576:tlVUu6baq87CYtXXubgKA91mXIYy0xFlZ6aBptW3zw/yZmUcYfPJ/U/m5volUntn:tlVUDBEPIXbyYKUColUE4ZIiNniUNGF8
MD5 SHA1 SHA512 SSDEEP

Submit Download

dll[2].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\S7FIT0B8\dll[2].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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is-TMD6R.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-7VPVS.tmp\is-TMD6R.tmp
Size 659KB
SHA256 5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
MD5 57d101722b08967ce53be6109b7f6ccf
SHA1 f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA512 57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
SSDEEP 12288:t23Blmb8xrPg373zHIA6XRiywi68ro6kVKhN9U4QpRH/jpPxG:wBlmb8xrPg373zHIA62KcTVxpPxG
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-TMD6R.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-7VPVS.tmp\is-TMD6R.tmp
Size 659KB
SHA256 5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
MD5 57d101722b08967ce53be6109b7f6ccf
SHA1 f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA512 57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
SSDEEP 12288:t23Blmb8xrPg373zHIA6XRiywi68ro6kVKhN9U4QpRH/jpPxG:wBlmb8xrPg373zHIA62KcTVxpPxG
MD5 SHA1 SHA512 SSDEEP

Submit Download

11Ux37lBCvj.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\11Ux37lBCvj.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

Rec416.exe

Path \Program Files (x86)\FKAsoftFR\Rec416\Rec416.exe
Size 3.2MB
SHA256 d1a64585d02427d800a9f7002862873a1041bb8e2be63402e43a38c8cfd9fbe9
MD5 5a14503281ab47239bcebd9b9bed506b
SHA1 f74f3a8438edde316f1dfc284d819e37f8589ade
SHA512 b3a4985ccefd638922531850142b41f7f7f615b91c6415db97fae1c6b76b8efab17e508c36f34d0a84c91bd87289a0a16feb862b0c7f6f6f01fe5715c7b2b9ee
SSDEEP 24576:tlVUu6baq87CYtXXubgKA91mXIYy0xFlZ6aBptW3zw/yZmUcYfPJ/U/m5volUntn:tlVUDBEPIXbyYKUColUE4ZIiNniUNGF8
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-TMD6R.tmp

Path \Users\Admin\AppData\Local\Temp\is-7VPVS.tmp\is-TMD6R.tmp
Size 659KB
SHA256 5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
MD5 57d101722b08967ce53be6109b7f6ccf
SHA1 f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA512 57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
SSDEEP 12288:t23Blmb8xrPg373zHIA6XRiywi68ro6kVKhN9U4QpRH/jpPxG:wBlmb8xrPg373zHIA62KcTVxpPxG
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-RCP4P.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

Submit Download

_isdecmp.dll

Path \Users\Admin\AppData\Local\Temp\is-RCP4P.tmp\_isetup\_isdecmp.dll
Size 13KB
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
SSDEEP 384:BXvhMwoSitz/bjx7yxnbdn+EHvbsHoOODCg:BZ7FEAbd+EDsIO
MD5 SHA1 SHA512 SSDEEP

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-RCP4P.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-RCP4P.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

11Ux37lBCvj.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\11Ux37lBCvj.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/524-94-0x0000000003180000-0x00000000042A7000-memory.dmp

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memory/524-98-0x0000000000400000-0x00000000004B4000-memory.dmp

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memory/524-87-0x00000000001D0000-0x00000000001D1000-memory.dmp

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memory/524-136-0x0000000000400000-0x00000000004B4000-memory.dmp

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memory/524-115-0x0000000003180000-0x00000000042A7000-memory.dmp

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memory/1532-54-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1532-97-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1532-137-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1628-95-0x0000000000400000-0x0000000001527000-memory.dmp

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memory/1628-116-0x0000000000400000-0x0000000001527000-memory.dmp

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memory/1628-135-0x0000000000400000-0x0000000001527000-memory.dmp

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memory/1628-108-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1628-104-0x0000000000400000-0x0000000001527000-memory.dmp

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memory/1628-96-0x0000000000400000-0x0000000001527000-memory.dmp

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