gcleaner | d4f6be2b386b1ded0cf214dd80e305916deefaa53d946f3dc049d8fdcda706a1

Analysis

max time kernel
58s
max time network
59s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
10-04-2023 21:14

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General

Target

file.exe
Size

3.0MB
MD5

1f8bb766c1400ea1efb742ee853f6db7
SHA1

984fdab9006992995753d9d7a7714304dc9408e0
SHA256

d4f6be2b386b1ded0cf214dd80e305916deefaa53d946f3dc049d8fdcda706a1
SHA512

d82b08d4c80acae9c81b83a4436f8e78692cc896f9750515df5f1270b3e1f54653c64f15124c4983fda4c70c1accdf6b00e3f863a69a7fa65ff90ff4e4743085
SSDEEP

49152:zGlJfszHgKKXXHrFCkhVOBL2XdhCTrVSL+o0HD99kBseVjgdUTH9dk1c4owWHygU:qMH7IVCLwsTML3+bkBttguTH9KowWSt

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Executes dropped EXE 3 IoCs

Processes:

is-GN5NI.tmpRec410.exewelssAd.exe

pid process

1216 is-GN5NI.tmp
1168 Rec410.exe
544 welssAd.exe
Loads dropped DLL 7 IoCs

Processes:

file.exeis-GN5NI.tmpRec410.exe

pid process

1376 file.exe
1216 is-GN5NI.tmp
1216 is-GN5NI.tmp
1216 is-GN5NI.tmp
1216 is-GN5NI.tmp
1216 is-GN5NI.tmp
1168 Rec410.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

pid	process
1216	is-GN5NI.tmp
1168	Rec410.exe
544	welssAd.exe

pid	process
1376	file.exe
1216	is-GN5NI.tmp
1216	is-GN5NI.tmp
1216	is-GN5NI.tmp
1216	is-GN5NI.tmp
1216	is-GN5NI.tmp
1168	Rec410.exe

Drops file in Program Files directory 9 IoCs

Processes:

is-GN5NI.tmp

description	ioc	process
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\unins000.dat	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-NG82V.tmp	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-136OL.tmp	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-M1RSU.tmp	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-QSQHQ.tmp	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\is-ORT91.tmp	is-GN5NI.tmp
File created	C:\Program Files (x86)\FJUsoftFR\Rec410\data\is-PSA1K.tmp	is-GN5NI.tmp
File opened for modification	C:\Program Files (x86)\FJUsoftFR\Rec410\unins000.dat	is-GN5NI.tmp
File opened for modification	C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe	is-GN5NI.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

Processes:

taskkill.exe

pid process

1752 taskkill.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Rec410.exe

pid process

1168 Rec410.exe
1168 Rec410.exe
1168 Rec410.exe

pid	process
1752	taskkill.exe

pid	process
1168	Rec410.exe
1168	Rec410.exe
1168	Rec410.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

file.exeis-GN5NI.tmpRec410.execmd.exe

description	pid	process	target process
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1376 wrote to memory of 1216	1376	file.exe	is-GN5NI.tmp
PID 1216 wrote to memory of 1168	1216	is-GN5NI.tmp	Rec410.exe
PID 1216 wrote to memory of 1168	1216	is-GN5NI.tmp	Rec410.exe
PID 1216 wrote to memory of 1168	1216	is-GN5NI.tmp	Rec410.exe
PID 1216 wrote to memory of 1168	1216	is-GN5NI.tmp	Rec410.exe
PID 1168 wrote to memory of 544	1168	Rec410.exe	welssAd.exe
PID 1168 wrote to memory of 544	1168	Rec410.exe	welssAd.exe
PID 1168 wrote to memory of 544	1168	Rec410.exe	welssAd.exe
PID 1168 wrote to memory of 544	1168	Rec410.exe	welssAd.exe
PID 1168 wrote to memory of 316	1168	Rec410.exe	cmd.exe
PID 1168 wrote to memory of 316	1168	Rec410.exe	cmd.exe
PID 1168 wrote to memory of 316	1168	Rec410.exe	cmd.exe
PID 1168 wrote to memory of 316	1168	Rec410.exe	cmd.exe
PID 316 wrote to memory of 1752	316	cmd.exe	taskkill.exe
PID 316 wrote to memory of 1752	316	cmd.exe	taskkill.exe
PID 316 wrote to memory of 1752	316	cmd.exe	taskkill.exe
PID 316 wrote to memory of 1752	316	cmd.exe	taskkill.exe

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:1376

C:\Users\Admin\AppData\Local\Temp\is-1AGC6.tmp\is-GN5NI.tmp
"C:\Users\Admin\AppData\Local\Temp\is-1AGC6.tmp\is-GN5NI.tmp" /SL4 $70126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2916755 56320
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1216

C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
"C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1168

C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\welssAd.exe
4⤵
- Executes dropped EXE
PID:544

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "Rec410.exe" /f & erase "C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "Rec410.exe" /f
5⤵
- Kills process with taskkill
PID:1752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
Filesize
3.2MB

MD5
c6d96fa418ca417bb582b2fc71addf78

SHA1
4fa17979b220685ee69aab86ed162342c7294030

SHA256
364b309008f3723da053022fbe5852e3af8d45c3c198d5e8512900e7efe85ca9

SHA512
3ecc42d0b45eb4e8fcd3ee6104bdaffaf7e5afe082c3bff8e21cd282994bcba46dcdafd2d7245b3a1e3053e062fd4ad872339289860a7bb865a5218d7f3ab692

Download Submit
C:\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
Filesize
3.2MB

MD5
c6d96fa418ca417bb582b2fc71addf78

SHA1
4fa17979b220685ee69aab86ed162342c7294030

SHA256
364b309008f3723da053022fbe5852e3af8d45c3c198d5e8512900e7efe85ca9

SHA512
3ecc42d0b45eb4e8fcd3ee6104bdaffaf7e5afe082c3bff8e21cd282994bcba46dcdafd2d7245b3a1e3053e062fd4ad872339289860a7bb865a5218d7f3ab692

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\S7FIT0B8\dll[2].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1AGC6.tmp\is-GN5NI.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1AGC6.tmp\is-GN5NI.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\welssAd.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Program Files (x86)\FJUsoftFR\Rec410\Rec410.exe
Filesize
3.2MB

MD5
c6d96fa418ca417bb582b2fc71addf78

SHA1
4fa17979b220685ee69aab86ed162342c7294030

SHA256
364b309008f3723da053022fbe5852e3af8d45c3c198d5e8512900e7efe85ca9

SHA512
3ecc42d0b45eb4e8fcd3ee6104bdaffaf7e5afe082c3bff8e21cd282994bcba46dcdafd2d7245b3a1e3053e062fd4ad872339289860a7bb865a5218d7f3ab692

Download Submit
\Users\Admin\AppData\Local\Temp\is-1AGC6.tmp\is-GN5NI.tmp
Filesize
659KB

MD5
57d101722b08967ce53be6109b7f6ccf

SHA1
f62e5f39efbfb03d0ddd822963122eb1945d9f18

SHA256
5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

SHA512
57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

Download Submit
\Users\Admin\AppData\Local\Temp\is-IRF8K.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-IRF8K.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-IRF8K.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-IRF8K.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\welssAd.exe
Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1168-95-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/1168-135-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/1168-96-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/1168-115-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/1168-109-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1168-104-0x0000000000400000-0x000000000152F000-memory.dmp

Filesize
17.2MB

Download
memory/1216-106-0x0000000003190000-0x00000000042BF000-memory.dmp

Filesize
17.2MB

Download
memory/1216-103-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1216-94-0x0000000003190000-0x00000000042BF000-memory.dmp

Filesize
17.2MB

Download
memory/1216-136-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1216-92-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1376-102-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1376-137-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download