gcleaner | 1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87

General

Target

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe
Size

2.1MB
MD5

967f9770c9085892a0c56a52962eecd2
SHA1

ffb66ed3e060059dabb9419c2fc604c5ba8ada72
SHA256

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87
SHA512

dfe6b30263148c46cde484c90885408182d1b915bc5064784f8e0ca3cfa2c27d46e01bc6ff8755904384af682e05398692cb1f6760b1851cced782e09f2c34a4
SSDEEP

49152:M2+OuWiGuM3/oH9OEoO2yzgBIo1PXEN0ZiyLxAII/m/WahOVLM0:h3xiGuUgHkEoZ6gBV9X9h/JhOVLM

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

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

Processes:

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmpHitFiles134.exevtaZz0er24Ia.exe

pid process

4152 1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
1532 HitFiles134.exe
4124 vtaZz0er24Ia.exe
Loads dropped DLL 1 IoCs

Processes:

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

pid process

4152 1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
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
4152	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
1532	HitFiles134.exe
4124	vtaZz0er24Ia.exe

pid	process
4152	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

Drops file in Program Files directory 17 IoCs

Processes:

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

description	ioc	process
File created	C:\Program Files (x86)\Split Files\language\is-J1ND9.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\is-7CLM5.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\is-O7RVL.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\is-EL29D.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-DJCT9.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File opened for modification	C:\Program Files (x86)\Split Files\unins000.dat	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\unins000.dat	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\is-4P671.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-9B7MG.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-S9N8Q.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-T2Q4M.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-BP7U7.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-O9B41.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-APRRA.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\language\is-J0D4P.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File created	C:\Program Files (x86)\Split Files\is-UVBPM.tmp	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
File opened for modification	C:\Program Files (x86)\Split Files\HitFiles134.exe	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

HitFiles134.exe

pid process

1532 HitFiles134.exe
1532 HitFiles134.exe
1532 HitFiles134.exe
1532 HitFiles134.exe
1532 HitFiles134.exe
1532 HitFiles134.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

HitFiles134.exe

pid process

1532 HitFiles134.exe

pid	process
1532	HitFiles134.exe
1532	HitFiles134.exe
1532	HitFiles134.exe
1532	HitFiles134.exe
1532	HitFiles134.exe
1532	HitFiles134.exe

pid	process
1532	HitFiles134.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmpHitFiles134.exe

description	pid	process	target process
PID 3168 wrote to memory of 4152	3168	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
PID 3168 wrote to memory of 4152	3168	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
PID 3168 wrote to memory of 4152	3168	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
PID 4152 wrote to memory of 1532	4152	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp	HitFiles134.exe
PID 4152 wrote to memory of 1532	4152	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp	HitFiles134.exe
PID 4152 wrote to memory of 1532	4152	1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp	HitFiles134.exe
PID 1532 wrote to memory of 4124	1532	HitFiles134.exe	vtaZz0er24Ia.exe
PID 1532 wrote to memory of 4124	1532	HitFiles134.exe	vtaZz0er24Ia.exe
PID 1532 wrote to memory of 4124	1532	HitFiles134.exe	vtaZz0er24Ia.exe

C:\Users\Admin\AppData\Local\Temp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe
"C:\Users\Admin\AppData\Local\Temp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Users\Admin\AppData\Local\Temp\is-LGT87.tmp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LGT87.tmp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp" /SL5="$8014C,1812811,162304,C:\Users\Admin\AppData\Local\Temp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4152
- - C:\Program Files (x86)\Split Files\HitFiles134.exe
    "C:\Program Files (x86)\Split Files\HitFiles134.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of WriteProcessMemory
    PID:1532
  - - C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\vtaZz0er24Ia.exe
      4⤵
      Executes dropped EXE
      PID:4124

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Split Files\HitFiles134.exe

Filesize
3.4MB

MD5
60f4ba31fb384e8ebce41c7a4be5ecec

SHA1
8e20cc707054752e71e93df35feb5651492a9218

SHA256
73a963a4f031fa7a0bb9ce6629ea8bac0a6ab08b403303e29b430b8f7d5655bc

SHA512
3015c3d8688a7ae656e517a47ad36ae6e4d576603e2d1da8c5d7fb64de14567232ccc4690d9e1b589103d86237a20f3f65fcbd7a2c16b5113bb05bb71c2b1703

Download Submit
C:\Program Files (x86)\Split Files\HitFiles134.exe

Filesize
3.4MB

MD5
60f4ba31fb384e8ebce41c7a4be5ecec

SHA1
8e20cc707054752e71e93df35feb5651492a9218

SHA256
73a963a4f031fa7a0bb9ce6629ea8bac0a6ab08b403303e29b430b8f7d5655bc

SHA512
3015c3d8688a7ae656e517a47ad36ae6e4d576603e2d1da8c5d7fb64de14567232ccc4690d9e1b589103d86237a20f3f65fcbd7a2c16b5113bb05bb71c2b1703

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-886D1.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LGT87.tmp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

Filesize
800KB

MD5
7013a53c5472267941844ed17de4de3c

SHA1
dda886aa81995da2abb763969bba86e82988db1a

SHA256
9897aed9da44b8a3c7d7cdeac2fdf2281bcd024846c77d45bc84b973abddc81e

SHA512
6b1e8845ffeda2a775370a89aaf7e7477cd6264df15da3cc7e412c282e0ccfb3719d6b08fc65190e61ec9674f5f527d939d9cd50ff9f29af37a049d04596060d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LGT87.tmp\1a050f9f569c84e6082a19ffef91491eb4837460b5eb276c641a19692c763a87.tmp

Filesize
800KB

MD5
7013a53c5472267941844ed17de4de3c

SHA1
dda886aa81995da2abb763969bba86e82988db1a

SHA256
9897aed9da44b8a3c7d7cdeac2fdf2281bcd024846c77d45bc84b973abddc81e

SHA512
6b1e8845ffeda2a775370a89aaf7e7477cd6264df15da3cc7e412c282e0ccfb3719d6b08fc65190e61ec9674f5f527d939d9cd50ff9f29af37a049d04596060d

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\vtaZz0er24Ia.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\vtaZz0er24Ia.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1532-182-0x0000000000400000-0x000000000155F000-memory.dmp

Filesize
17.4MB

Download
memory/1532-189-0x0000000000400000-0x000000000155F000-memory.dmp

Filesize
17.4MB

Download
memory/3168-133-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3168-187-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4152-150-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/4152-188-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download

Analysis

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