gcleaner | 4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48

General

Target

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe
Size

2.2MB
MD5

21023659c520bac658fb70fea771afa5
SHA1

cc469d6cb1dfea8e1764ad3f7cbd1c998322951f
SHA256

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48
SHA512

ff99ce7920aed560e62704a0c6811bed20d5a703826d4df931ae7d11f6ae331ffc9c801823bcad1db0790d447b5bb50a1e15d0216b2e226fe93b823fc3a3370e
SSDEEP

49152:d24/iTDy7s9PAY6w83m3R2HO7jo5wcSZmI/m/WahOVLT3Mk:Imi/yw9PAYT83mB286n/JhOVL7Mk

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:

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmpHitFiles134.exeIJvSMN.exe

pid process

848 4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
4388 HitFiles134.exe
4672 IJvSMN.exe
Loads dropped DLL 1 IoCs

Processes:

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp

pid process

848 4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.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
848	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
4388	HitFiles134.exe
4672	IJvSMN.exe

pid	process
848	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp

Drops file in Program Files directory 17 IoCs

Processes:

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp

description	ioc	process
File created	C:\Program Files (x86)\Split Files\language\is-BMAT1.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\is-HMVSE.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\is-A78FO.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-1EJTL.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-CULSS.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-MR8L5.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-5F7DP.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\unins000.dat	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-N48MT.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-5TALS.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-9PK8P.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\is-2E5GJ.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\is-QT95U.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File opened for modification	C:\Program Files (x86)\Split Files\unins000.dat	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File opened for modification	C:\Program Files (x86)\Split Files\HitFiles134.exe	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\is-6JP50.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
File created	C:\Program Files (x86)\Split Files\language\is-F8S8O.tmp	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

HitFiles134.exe

pid process

4388 HitFiles134.exe
4388 HitFiles134.exe
4388 HitFiles134.exe
4388 HitFiles134.exe
4388 HitFiles134.exe
4388 HitFiles134.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

HitFiles134.exe

pid process

4388 HitFiles134.exe

pid	process
4388	HitFiles134.exe
4388	HitFiles134.exe
4388	HitFiles134.exe
4388	HitFiles134.exe
4388	HitFiles134.exe
4388	HitFiles134.exe

pid	process
4388	HitFiles134.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmpHitFiles134.exe

description	pid	process	target process
PID 3728 wrote to memory of 848	3728	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
PID 3728 wrote to memory of 848	3728	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
PID 3728 wrote to memory of 848	3728	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
PID 848 wrote to memory of 4388	848	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp	HitFiles134.exe
PID 848 wrote to memory of 4388	848	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp	HitFiles134.exe
PID 848 wrote to memory of 4388	848	4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp	HitFiles134.exe
PID 4388 wrote to memory of 4672	4388	HitFiles134.exe	IJvSMN.exe
PID 4388 wrote to memory of 4672	4388	HitFiles134.exe	IJvSMN.exe
PID 4388 wrote to memory of 4672	4388	HitFiles134.exe	IJvSMN.exe

C:\Users\Admin\AppData\Local\Temp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe
"C:\Users\Admin\AppData\Local\Temp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3728

C:\Users\Admin\AppData\Local\Temp\is-MQP79.tmp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
"C:\Users\Admin\AppData\Local\Temp\is-MQP79.tmp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp" /SL5="$9002E,1803570,162304,C:\Users\Admin\AppData\Local\Temp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:848

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:4388

C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\IJvSMN.exe
4⤵
- Executes dropped EXE
PID:4672

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Split Files\HitFiles134.exe
Filesize
3.4MB

MD5
a5dd7b002ebf956ad08da564d0afe528

SHA1
bf3f1177e016a5cbdb3ee09b0f8e1f86e70cee63

SHA256
8a27e39847699e08a9056beb2f53b25ae64591ba77cc8413a7b08071eac8e504

SHA512
fb0cb8dcb9b6ee2898d0ba2dcc06bfa43819832633c35a0490ecd6e63e8f0e561636f5540cf62eb7d71e69e9bce15ea7ce97f2f8d512fcc423eea7d638e3f82b

Download Submit
C:\Program Files (x86)\Split Files\HitFiles134.exe
Filesize
3.4MB

MD5
a5dd7b002ebf956ad08da564d0afe528

SHA1
bf3f1177e016a5cbdb3ee09b0f8e1f86e70cee63

SHA256
8a27e39847699e08a9056beb2f53b25ae64591ba77cc8413a7b08071eac8e504

SHA512
fb0cb8dcb9b6ee2898d0ba2dcc06bfa43819832633c35a0490ecd6e63e8f0e561636f5540cf62eb7d71e69e9bce15ea7ce97f2f8d512fcc423eea7d638e3f82b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0AM1N.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MQP79.tmp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
Filesize
800KB

MD5
7013a53c5472267941844ed17de4de3c

SHA1
dda886aa81995da2abb763969bba86e82988db1a

SHA256
9897aed9da44b8a3c7d7cdeac2fdf2281bcd024846c77d45bc84b973abddc81e

SHA512
6b1e8845ffeda2a775370a89aaf7e7477cd6264df15da3cc7e412c282e0ccfb3719d6b08fc65190e61ec9674f5f527d939d9cd50ff9f29af37a049d04596060d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MQP79.tmp\4138137b8f7935b1bfb24c1d65a1da491ae9d717dc173e2614edd69e0aa69e48.tmp
Filesize
800KB

MD5
7013a53c5472267941844ed17de4de3c

SHA1
dda886aa81995da2abb763969bba86e82988db1a

SHA256
9897aed9da44b8a3c7d7cdeac2fdf2281bcd024846c77d45bc84b973abddc81e

SHA512
6b1e8845ffeda2a775370a89aaf7e7477cd6264df15da3cc7e412c282e0ccfb3719d6b08fc65190e61ec9674f5f527d939d9cd50ff9f29af37a049d04596060d

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\IJvSMN.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{0338073a-b1a2-11ed-9ee7-806e6f6e6963}\IJvSMN.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/848-176-0x0000000002350000-0x0000000002351000-memory.dmp

Filesize
4KB

Download
memory/848-189-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3728-133-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3728-188-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4388-182-0x0000000000400000-0x000000000155F000-memory.dmp

Filesize
17.4MB

Download
memory/4388-183-0x0000000000400000-0x000000000155F000-memory.dmp

Filesize
17.4MB

Download
memory/4388-190-0x0000000000400000-0x000000000155F000-memory.dmp

Filesize
17.4MB

Download

Analysis

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