gcleaner | e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9

General

Target

e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe
Size

1.7MB
MD5

626dfce30710d112f0563dd0f9f296d2
SHA1

f8a95133d85aa2d3f98cf0ab73bc6c4f77ff7d3b
SHA256

e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9
SHA512

f1954d85cb7e611a3205dc8dc9c6bace06d0bda72469af4f1a80a54bc2d7e365faea0e43b10e9f4d3b2ad2a9a9d2d073039876a38cd0ee65fb82d6ea1203b995
SSDEEP

24576:Z2eCpjpu8m1qhM2aznGWBOkNwLanIMt8K1373E2hSCWyZnZ57dYC51V3AfY2Q1v2:Z2du0hlazbUoIMtB1rUS5ZZvYiAA5hu

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

208.67.106.156

37.139.129.24

193.151.183.73

208.67.104.141

Attributes

url_path
/i.php

/get.php

/setup.php

/setup.php

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2156	is-P1UM1.tmp
2760	fdm-35.exe

Loads dropped DLL 5 IoCs

pid	Process
2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe
2156	is-P1UM1.tmp
2156	is-P1UM1.tmp
2156	is-P1UM1.tmp
2156	is-P1UM1.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

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Loppy Disk Master\is-7ECBA.tmp	is-P1UM1.tmp
File opened for modification	C:\Program Files (x86)\Loppy Disk Master\unins000.dat	is-P1UM1.tmp
File opened for modification	C:\Program Files (x86)\Loppy Disk Master\fdm-35.exe	is-P1UM1.tmp
File created	C:\Program Files (x86)\Loppy Disk Master\unins000.dat	is-P1UM1.tmp
File created	C:\Program Files (x86)\Loppy Disk Master\is-EG6NJ.tmp	is-P1UM1.tmp
File created	C:\Program Files (x86)\Loppy Disk Master\is-7VTVS.tmp	is-P1UM1.tmp
File created	C:\Program Files (x86)\Loppy Disk Master\is-CK7PI.tmp	is-P1UM1.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-P1UM1.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdm-35.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2692 wrote to memory of 2156	2692	e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe	30
PID 2156 wrote to memory of 2760	2156	is-P1UM1.tmp	31
PID 2156 wrote to memory of 2760	2156	is-P1UM1.tmp	31
PID 2156 wrote to memory of 2760	2156	is-P1UM1.tmp	31
PID 2156 wrote to memory of 2760	2156	is-P1UM1.tmp	31

C:\Users\Admin\AppData\Local\Temp\e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe
"C:\Users\Admin\AppData\Local\Temp\e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\is-CLB35.tmp\is-P1UM1.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-CLB35.tmp\is-P1UM1.tmp" /SL4 $30136 "C:\Users\Admin\AppData\Local\Temp\e31040379c3d52a7fdec6d069aee1e3405b96dbef54b6615c840018a847e25c9.exe" 1542998 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Program Files (x86)\Loppy Disk Master\fdm-35.exe
    "C:\Program Files (x86)\Loppy Disk Master\fdm-35.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Loppy Disk Master\fdm-35.exe

Filesize
2.9MB

MD5
f212366ef83f5e89633e3b1aac35ea7f

SHA1
9b56c070be542fdd893e3de35c8a476ae255979a

SHA256
48bcb229bec55fa35a579870073247dbfe676acb65130ee7fd3edfa2085aba64

SHA512
acf6c21a0d495c00e9ec1c47fa3b32ecde55becf4d179b95f298b5aafdb19addcd615054768a2efbffb66cdfb058cc80789d15036673e01675a2f91f57539e69

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CLB35.tmp\is-P1UM1.tmp

Filesize
657KB

MD5
7cd12c54a9751ca6eee6ab0c85fb68f5

SHA1
76562e9b7888b6d20d67addb5a90b68b54a51987

SHA256
e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f

SHA512
27ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc

Download Submit
\Users\Admin\AppData\Local\Temp\is-71A9P.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-71A9P.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2156-16-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2156-34-0x0000000003A00000-0x0000000004AE9000-memory.dmp

Filesize
16.9MB

Download
memory/2156-40-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2692-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2692-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-41-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2760-35-0x0000000000400000-0x00000000014E9000-memory.dmp

Filesize
16.9MB

Download
memory/2760-38-0x0000000000400000-0x00000000014E9000-memory.dmp

Filesize
16.9MB

Download
memory/2760-36-0x0000000000400000-0x00000000014E9000-memory.dmp

Filesize
16.9MB

Download

Analysis

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