gcleaner | 01bd2d4585240c51c490af860bf6b9c2a32149acedf31dec5a458e5bf696c043

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
05/06/2023, 20:05

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
file.exe
Size 1.8MB
Sample230605-yttp2abb8s
SHA256 01bd2d4585240c51c490af860bf6b9c2a32149acedf31dec5a458e5bf696c043
MD5 48ada7d294ad85d165e0db5fae3a06e8
SHA1 bac4d6d632163d39bf3d0552eced7269b87dbbc7
SHA512 73334a68d949c3e367f8a433e9a0101d8f8685a7217b9830280aefefa68d9fd178a031ac9b6960867d6a113bf31fa71413af994cc2d3435fd2e0a6a33978a0c1
SSDEEP 49152:56dDGxpwX2az9eZeMq9GJJxEZXngSGEPLrh:Mdqy1Ej+ZXgYrh
MD5 SHA1 SHA512 SSDEEP

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	Rec65.exe

Executes dropped EXE 3 IoCs

pid	Process
2108	is-T4A0D.tmp
3464	Rec65.exe
824	lMxZxkzmP.exe

Loads dropped DLL 1 IoCs

pid	Process
2108	is-T4A0D.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 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\FMACover\Rec65\is-TASNU.tmp	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\data\is-A060J.tmp	is-T4A0D.tmp
File opened for modification	C:\Program Files (x86)\FMACover\Rec65\Rec65.exe	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\is-4790A.tmp	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\is-O09VM.tmp	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\is-C34JN.tmp	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\is-U3P62.tmp	is-T4A0D.tmp
File opened for modification	C:\Program Files (x86)\FMACover\Rec65\unins000.dat	is-T4A0D.tmp
File created	C:\Program Files (x86)\FMACover\Rec65\unins000.dat	is-T4A0D.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
4880	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3464	Rec65.exe
3464	Rec65.exe
3464	Rec65.exe
3464	Rec65.exe
3464	Rec65.exe
3464	Rec65.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2108	2196	file.exe	83
PID 2196 wrote to memory of 2108	2196	file.exe	83
PID 2196 wrote to memory of 2108	2196	file.exe	83
PID 2108 wrote to memory of 3464	2108	is-T4A0D.tmp	84
PID 2108 wrote to memory of 3464	2108	is-T4A0D.tmp	84
PID 2108 wrote to memory of 3464	2108	is-T4A0D.tmp	84
PID 3464 wrote to memory of 824	3464	Rec65.exe	85
PID 3464 wrote to memory of 824	3464	Rec65.exe	85
PID 3464 wrote to memory of 824	3464	Rec65.exe	85
PID 3464 wrote to memory of 2144	3464	Rec65.exe	93
PID 3464 wrote to memory of 2144	3464	Rec65.exe	93
PID 3464 wrote to memory of 2144	3464	Rec65.exe	93
PID 2144 wrote to memory of 4880	2144	cmd.exe	95
PID 2144 wrote to memory of 4880	2144	cmd.exe	95
PID 2144 wrote to memory of 4880	2144	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\is-EFVPJ.tmp\is-T4A0D.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-EFVPJ.tmp\is-T4A0D.tmp" /SL4 $1A0022 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1629786 48640
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2108
- - C:\Program Files (x86)\FMACover\Rec65\Rec65.exe
    "C:\Program Files (x86)\FMACover\Rec65\Rec65.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3464
  - - C:\Users\Admin\AppData\Roaming\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\lMxZxkzmP.exe
      4⤵
      Executes dropped EXE
      PID:824
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "Rec65.exe" /f & erase "C:\Program Files (x86)\FMACover\Rec65\Rec65.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2144
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "Rec65.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4880

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

Loading Replay Monitor...

Downloads

Rec65.exe

Path C:\Program Files (x86)\FMACover\Rec65\Rec65.exe
Size 1.5MB
SHA256 4ee19ac1e2da849f7d74dddfc13ab8884d8f154d986f7015d4626e59733b8995
MD5 7893809b4daa19dfc24b795bd84df31e
SHA1 e4a4a87006b77e05dbc05b0560816f462ea77cbf
SHA512 d8e770a993aa8cbcae617366886d43f9afa27fcfb7b09badcb17f486f42dd79c7a600448cd5140330b3e68263cd58448a9efd3f156da86a24795aa5e25d5bf2b
SSDEEP 24576:6r2qeNRdFXAssnLUhvyM+RHw3PBR7fcDkMBwLwuRzKo6oolvYmZYH71MV2uvw:+EvCUh6MKQ3Pbf8gwuFKo6b9xYHG2P
MD5 SHA1 SHA512 SSDEEP

Submit Download

Rec65.exe

Path C:\Program Files (x86)\FMACover\Rec65\Rec65.exe
Size 1.5MB
SHA256 4ee19ac1e2da849f7d74dddfc13ab8884d8f154d986f7015d4626e59733b8995
MD5 7893809b4daa19dfc24b795bd84df31e
SHA1 e4a4a87006b77e05dbc05b0560816f462ea77cbf
SHA512 d8e770a993aa8cbcae617366886d43f9afa27fcfb7b09badcb17f486f42dd79c7a600448cd5140330b3e68263cd58448a9efd3f156da86a24795aa5e25d5bf2b
SSDEEP 24576:6r2qeNRdFXAssnLUhvyM+RHw3PBR7fcDkMBwLwuRzKo6oolvYmZYH71MV2uvw:+EvCUh6MKQ3Pbf8gwuFKo6b9xYHG2P
MD5 SHA1 SHA512 SSDEEP

Submit Download

dll[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\dll[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

is-T4A0D.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-EFVPJ.tmp\is-T4A0D.tmp
Size 639KB
SHA256 84e08d3d60fa440e7c6246709cc3a51467a2e1d4fee3a5e1077a22e6ba4be698
MD5 fcf5242938a24b9034aa33896f77ad75
SHA1 40542fcd914be6a6c3ddd3a84a3003b1a530bef7
SHA512 078cb9f93708c4bd7f8558d0b7c87ed9ede3908409ad4a8f9df0dbba2bcdabc2cf3706df58e5513f1667879c4ad86b964fb4aec26fe99dcdbdecfba611be2fbf
SSDEEP 12288:ohmNwuOaZzZrPu37jzHuA6KKtWvV/ZXNURCqVqlqxOu:SmNwuOaZzZrPu37jzHuA6KtN/ZoVqlqH
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-T4A0D.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-EFVPJ.tmp\is-T4A0D.tmp
Size 639KB
SHA256 84e08d3d60fa440e7c6246709cc3a51467a2e1d4fee3a5e1077a22e6ba4be698
MD5 fcf5242938a24b9034aa33896f77ad75
SHA1 40542fcd914be6a6c3ddd3a84a3003b1a530bef7
SHA512 078cb9f93708c4bd7f8558d0b7c87ed9ede3908409ad4a8f9df0dbba2bcdabc2cf3706df58e5513f1667879c4ad86b964fb4aec26fe99dcdbdecfba611be2fbf
SSDEEP 12288:ohmNwuOaZzZrPu37jzHuA6KKtWvV/ZXNURCqVqlqxOu:SmNwuOaZzZrPu37jzHuA6KtN/ZoVqlqH
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-LC8JD.tmp\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

Submit Download

lMxZxkzmP.exe

Path C:\Users\Admin\AppData\Roaming\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\lMxZxkzmP.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

lMxZxkzmP.exe

Path C:\Users\Admin\AppData\Roaming\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\lMxZxkzmP.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2108-179-0x0000000000400000-0x00000000004CE000-memory.dmp

Download

memory/2108-146-0x0000000002100000-0x0000000002101000-memory.dmp

Download

memory/2108-197-0x0000000000400000-0x00000000004CE000-memory.dmp

Download

memory/2196-178-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/2196-133-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/2196-198-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/3464-173-0x0000000010000000-0x000000001001B000-memory.dmp

Download

memory/3464-180-0x0000000000400000-0x0000000001383000-memory.dmp

Download

memory/3464-165-0x0000000000400000-0x0000000001383000-memory.dmp

Download

memory/3464-196-0x0000000000400000-0x0000000001383000-memory.dmp

Download

memory/3464-164-0x0000000000400000-0x0000000001383000-memory.dmp

Download