gcleaner | 02def44a4da1f39bd5dc3871ffeda9a313931fabce8ba356577cdaf491d0a6b1

Analysis

max time kernel
57s
max time network
59s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15/01/2023, 04:31

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General

Target
file.exe
Size 1.3MB
Sample230115-e5dcmsaa58
SHA256 02def44a4da1f39bd5dc3871ffeda9a313931fabce8ba356577cdaf491d0a6b1
MD5 cb84b337b2c495d29a03c9e8e5ee9980
SHA1 6423d05d7185f556c0c2d973dcf0ebe968048137
SHA512 eec11c1584c6669bd5ee7f55c31a3c32e2863615c2fada804379177528718485c8d08186059589009a25258cb3ba535e57bcc0d60351f4f075f64ca214c2399b
SSDEEP 24576:I2030Z+BSiy8656Kp1GvkFHkYa/s9H0xt7tflk6PDhwCbr:I24T9+ExAHXaxtBdD6Cbr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

45.139.105.171
85.31.46.167
107.182.129.235
171.22.30.106

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Executes dropped EXE 3 IoCs

pid	Process
1888	file.tmp
1752	PitFiles449.exe
1364	Rpaljx.exe

Loads dropped DLL 6 IoCs

pid	Process
980	file.exe
1888	file.tmp
1888	file.tmp
1888	file.tmp
1888	file.tmp
1752	PitFiles449.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 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Pit Files\is-26L3J.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-SS2Q0.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-HQMTT.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-D3DJU.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Pit Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Pit Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-PQN14.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-81GGN.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-SNR5H.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-GI482.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-L38DI.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-AKTM7.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-28M68.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-UNVK0.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-2QLRS.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Pit Files\PitFiles449.exe	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-Q1A8T.tmp	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
1732	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1752	PitFiles449.exe
1752	PitFiles449.exe
1752	PitFiles449.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 980 wrote to memory of 1888	980	file.exe	28
PID 1888 wrote to memory of 1752	1888	file.tmp	29
PID 1888 wrote to memory of 1752	1888	file.tmp	29
PID 1888 wrote to memory of 1752	1888	file.tmp	29
PID 1888 wrote to memory of 1752	1888	file.tmp	29
PID 1752 wrote to memory of 1364	1752	PitFiles449.exe	30
PID 1752 wrote to memory of 1364	1752	PitFiles449.exe	30
PID 1752 wrote to memory of 1364	1752	PitFiles449.exe	30
PID 1752 wrote to memory of 1364	1752	PitFiles449.exe	30
PID 1752 wrote to memory of 276	1752	PitFiles449.exe	33
PID 1752 wrote to memory of 276	1752	PitFiles449.exe	33
PID 1752 wrote to memory of 276	1752	PitFiles449.exe	33
PID 1752 wrote to memory of 276	1752	PitFiles449.exe	33
PID 276 wrote to memory of 1732	276	cmd.exe	35
PID 276 wrote to memory of 1732	276	cmd.exe	35
PID 276 wrote to memory of 1732	276	cmd.exe	35
PID 276 wrote to memory of 1732	276	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:980
- C:\Users\Admin\AppData\Local\Temp\is-MLL5L.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MLL5L.tmp\file.tmp" /SL5="$60124,1121123,232960,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:1888
- - C:\Program Files (x86)\Pit Files\PitFiles449.exe
    "C:\Program Files (x86)\Pit Files\PitFiles449.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1752
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Rpaljx.exe
      4⤵
      Executes dropped EXE
      PID:1364
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "PitFiles449.exe" /f & erase "C:\Program Files (x86)\Pit Files\PitFiles449.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:276
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "PitFiles449.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1732

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

PitFiles449.exe

Path C:\Program Files (x86)\Pit Files\PitFiles449.exe
Size 1.9MB
SHA256 b679117c61263b645e252c2437eba6b73970ede6aacfd64921fd3eb52c9fe412
MD5 59616e83ff08ce23b771351502e7c04e
SHA1 12306ed06505f76110373729c6494d74b4dfa8df
SHA512 5e5623376adb39dcd75987c867917dd5c0219ba5689a073dc0f87057d02aefbe0e2ea147d5d1bd504bd36cb8c2e9d45162b21fd58d87c26e609742e5c3187558
SSDEEP 49152:vRL1VDHj0sggS7vez7fog9/2gyQUKjJSezfE:vdjj0sggS7mz7gg9/23QUKjJSezM
MD5 SHA1 SHA512 SSDEEP

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PitFiles449.exe

Path C:\Program Files (x86)\Pit Files\PitFiles449.exe
Size 1.9MB
SHA256 b679117c61263b645e252c2437eba6b73970ede6aacfd64921fd3eb52c9fe412
MD5 59616e83ff08ce23b771351502e7c04e
SHA1 12306ed06505f76110373729c6494d74b4dfa8df
SHA512 5e5623376adb39dcd75987c867917dd5c0219ba5689a073dc0f87057d02aefbe0e2ea147d5d1bd504bd36cb8c2e9d45162b21fd58d87c26e609742e5c3187558
SSDEEP 49152:vRL1VDHj0sggS7vez7fog9/2gyQUKjJSezfE:vdjj0sggS7mz7gg9/23QUKjJSezM
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-MLL5L.tmp\file.tmp
Size 779KB
SHA256 3f7c916efbd1fae45d696f00791a93d9ad2adf18b2ee66daddb30a9d431dfe18
MD5 70f2afb7b9313b21cd852a33bebe23d8
SHA1 6d17a890977a7434fed0ab6f75f125335af36687
SHA512 dd00d319a17ee6eed692aa80426ce5004be98e550fe567c3b5d725d931e258107eb7fe2a2a181ba97b90093674bb50880b78de10ec4e64b75ecde3b303cdc447
SSDEEP 24576:WN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffInXEx95i:WNSjrPN37qzHxA6odRkymJYq
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-MLL5L.tmp\file.tmp
Size 779KB
SHA256 3f7c916efbd1fae45d696f00791a93d9ad2adf18b2ee66daddb30a9d431dfe18
MD5 70f2afb7b9313b21cd852a33bebe23d8
SHA1 6d17a890977a7434fed0ab6f75f125335af36687
SHA512 dd00d319a17ee6eed692aa80426ce5004be98e550fe567c3b5d725d931e258107eb7fe2a2a181ba97b90093674bb50880b78de10ec4e64b75ecde3b303cdc447
SSDEEP 24576:WN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffInXEx95i:WNSjrPN37qzHxA6odRkymJYq
MD5 SHA1 SHA512 SSDEEP

Submit Download

Rpaljx.exe

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

Submit Download

PitFiles449.exe

Path \Program Files (x86)\Pit Files\PitFiles449.exe
Size 1.9MB
SHA256 b679117c61263b645e252c2437eba6b73970ede6aacfd64921fd3eb52c9fe412
MD5 59616e83ff08ce23b771351502e7c04e
SHA1 12306ed06505f76110373729c6494d74b4dfa8df
SHA512 5e5623376adb39dcd75987c867917dd5c0219ba5689a073dc0f87057d02aefbe0e2ea147d5d1bd504bd36cb8c2e9d45162b21fd58d87c26e609742e5c3187558
SSDEEP 49152:vRL1VDHj0sggS7vez7fog9/2gyQUKjJSezfE:vdjj0sggS7mz7gg9/23QUKjJSezM
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-6PN1N.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-6PN1N.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-6PN1N.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

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-MLL5L.tmp\file.tmp
Size 779KB
SHA256 3f7c916efbd1fae45d696f00791a93d9ad2adf18b2ee66daddb30a9d431dfe18
MD5 70f2afb7b9313b21cd852a33bebe23d8
SHA1 6d17a890977a7434fed0ab6f75f125335af36687
SHA512 dd00d319a17ee6eed692aa80426ce5004be98e550fe567c3b5d725d931e258107eb7fe2a2a181ba97b90093674bb50880b78de10ec4e64b75ecde3b303cdc447
SSDEEP 24576:WN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffInXEx95i:WNSjrPN37qzHxA6odRkymJYq
MD5 SHA1 SHA512 SSDEEP

Submit Download

Rpaljx.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Rpaljx.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/980-86-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/980-55-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/980-69-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/980-54-0x0000000075811000-0x0000000075813000-memory.dmp

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memory/1752-71-0x0000000000400000-0x00000000013EF000-memory.dmp

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memory/1752-73-0x0000000000400000-0x00000000013EF000-memory.dmp

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memory/1752-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1752-82-0x0000000000400000-0x00000000013EF000-memory.dmp

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memory/1752-72-0x0000000000400000-0x00000000013EF000-memory.dmp

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memory/1752-85-0x0000000000400000-0x00000000013EF000-memory.dmp

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memory/1888-81-0x00000000035D0000-0x00000000045BF000-memory.dmp

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memory/1888-70-0x00000000035D0000-0x00000000045BF000-memory.dmp

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