gcleaner | 1c63ea888544ada2710eacdcc6ae91a0d5201a4d7876b308dbcaa9a33551aa8c

Analysis

max time kernel
55s
max time network
58s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15/01/2023, 03:46

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General

Target
file.exe
Size 1.3MB
Sample230115-ebmn8ade2t
SHA256 1c63ea888544ada2710eacdcc6ae91a0d5201a4d7876b308dbcaa9a33551aa8c
MD5 bfc17b9ee14c4d600e70f8300b8a3ccf
SHA1 1e7c0449b9ee80de0ee6a309c235669c92d61f38
SHA512 9476263506ad1dfab6955282099e9a644d1304f10625644441fce7ffc494cdcc8809f21f283e375133af830407440ce55ae24d68a62989da4d1a6689d2f05384
SSDEEP 24576:r20h5WT2MW+c6oKsydzOh2Oav1dIWu8smhwCbr:r2wzM9cnKsygozvPXsm6Cbr
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
1372	file.tmp
624	PitFiles449.exe
1680	EUrAWyzLE2Ff4.exe

Loads dropped DLL 6 IoCs

pid	Process
2032	file.exe
1372	file.tmp
1372	file.tmp
1372	file.tmp
1372	file.tmp
624	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 opened for modification	C:\Program Files (x86)\Pit Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-P6PI3.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-12H4T.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-KGAS5.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-MQS53.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-55RVN.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-930SJ.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-9DHOD.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-KNCCR.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-08925.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-D9HD6.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-ELUCE.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-HF64J.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\language\is-DB9ND.tmp	file.tmp
File created	C:\Program Files (x86)\Pit Files\is-HQ41C.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Pit Files\PitFiles449.exe	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
1288	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
624	PitFiles449.exe
624	PitFiles449.exe
624	PitFiles449.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 2032 wrote to memory of 1372	2032	file.exe	28
PID 1372 wrote to memory of 624	1372	file.tmp	29
PID 1372 wrote to memory of 624	1372	file.tmp	29
PID 1372 wrote to memory of 624	1372	file.tmp	29
PID 1372 wrote to memory of 624	1372	file.tmp	29
PID 624 wrote to memory of 1680	624	PitFiles449.exe	30
PID 624 wrote to memory of 1680	624	PitFiles449.exe	30
PID 624 wrote to memory of 1680	624	PitFiles449.exe	30
PID 624 wrote to memory of 1680	624	PitFiles449.exe	30
PID 624 wrote to memory of 328	624	PitFiles449.exe	33
PID 624 wrote to memory of 328	624	PitFiles449.exe	33
PID 624 wrote to memory of 328	624	PitFiles449.exe	33
PID 624 wrote to memory of 328	624	PitFiles449.exe	33
PID 328 wrote to memory of 1288	328	cmd.exe	35
PID 328 wrote to memory of 1288	328	cmd.exe	35
PID 328 wrote to memory of 1288	328	cmd.exe	35
PID 328 wrote to memory of 1288	328	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:2032
- C:\Users\Admin\AppData\Local\Temp\is-N8FKC.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-N8FKC.tmp\file.tmp" /SL5="$80122,1116669,229888,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:1372
- - 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:624
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\EUrAWyzLE2Ff4.exe
      4⤵
      Executes dropped EXE
      PID:1680
  - - 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:328
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "PitFiles449.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1288

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 7063af07821cdda52dfd6c49a0c32a59826a1920d9ad6a74e0b4f6a7af24b4f7
MD5 aa8d2a89852d9692a7f66f0bac94657a
SHA1 35b38b77f99f1ca8f59fada8171afcaff975ed43
SHA512 6e55afd102051d8b5fcf51e42d8a4fd4f7ca616ddacfd6415842dcbfe63426c2cdbad07d51adc27ae35e65ca9393de12ee7fe7d875d9c864c6e78c316bc87ab5
SSDEEP 24576:9jRSTaiDsggS6XY0t3FLqvpKPb9+aWzgw8eewXYUDxN:9uacsggS6H1oKfOgER
MD5 SHA1 SHA512 SSDEEP

Submit Download

PitFiles449.exe

Path C:\Program Files (x86)\Pit Files\PitFiles449.exe
Size 1.9MB
SHA256 7063af07821cdda52dfd6c49a0c32a59826a1920d9ad6a74e0b4f6a7af24b4f7
MD5 aa8d2a89852d9692a7f66f0bac94657a
SHA1 35b38b77f99f1ca8f59fada8171afcaff975ed43
SHA512 6e55afd102051d8b5fcf51e42d8a4fd4f7ca616ddacfd6415842dcbfe63426c2cdbad07d51adc27ae35e65ca9393de12ee7fe7d875d9c864c6e78c316bc87ab5
SSDEEP 24576:9jRSTaiDsggS6XY0t3FLqvpKPb9+aWzgw8eewXYUDxN:9uacsggS6H1oKfOgER
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-N8FKC.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-N8FKC.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

EUrAWyzLE2Ff4.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\EUrAWyzLE2Ff4.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 7063af07821cdda52dfd6c49a0c32a59826a1920d9ad6a74e0b4f6a7af24b4f7
MD5 aa8d2a89852d9692a7f66f0bac94657a
SHA1 35b38b77f99f1ca8f59fada8171afcaff975ed43
SHA512 6e55afd102051d8b5fcf51e42d8a4fd4f7ca616ddacfd6415842dcbfe63426c2cdbad07d51adc27ae35e65ca9393de12ee7fe7d875d9c864c6e78c316bc87ab5
SSDEEP 24576:9jRSTaiDsggS6XY0t3FLqvpKPb9+aWzgw8eewXYUDxN:9uacsggS6H1oKfOgER
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-N8FKC.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

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-SJJ5P.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-SJJ5P.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-SJJ5P.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

EUrAWyzLE2Ff4.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\EUrAWyzLE2Ff4.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/624-71-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/624-85-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/624-72-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/624-73-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/624-82-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/624-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1372-70-0x00000000035D0000-0x00000000045B8000-memory.dmp

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memory/1372-81-0x00000000035D0000-0x00000000045B8000-memory.dmp

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memory/2032-69-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/2032-54-0x0000000076261000-0x0000000076263000-memory.dmp

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memory/2032-86-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/2032-55-0x0000000000400000-0x000000000043F000-memory.dmp

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