gcleaner | 79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 04:23

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General

Target

79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe
Size

260KB
MD5

002ba1e8dc8600a717a2550fef8df45f
SHA1

91a1a7f2841c06abd49baf6fada4ef2c1880fd8b
SHA256

79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce
SHA512

be287d44e022fc2244c7cf01d63aa3514627f18dba83d60eee0e53537a1a5eabd682d3ea736f37abbaad1cff877b37dc37aeb27cd69cceeab80f4e1d54348b3a
SSDEEP

6144:4VfSVckR+Cqkv35wRHl3+FsO+Y40lIUcuaRnT:GqVBR+MvpwNluFsTSI6gT

Score

10^/10

gcleaner meduza collection loader stealer

Malware Config

Extracted

Family

gcleaner

185.172.128.90

5.42.65.64

Attributes

url_path
/advdlc.php

Extracted

Family

meduza

5.182.86.229

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Meduza
Meduza is a crypto wallet and info stealer written in C++.
stealer meduza

Meduza Stealer payload 5 IoCs

resource	yara_rule
behavioral1/memory/1652-16-0x0000000140000000-0x00000001400D3000-memory.dmp	family_meduza
behavioral1/memory/1652-17-0x0000000140000000-0x00000001400D3000-memory.dmp	family_meduza
behavioral1/memory/1652-18-0x0000000140000000-0x00000001400D3000-memory.dmp	family_meduza
behavioral1/memory/1652-19-0x0000000140000000-0x00000001400D3000-memory.dmp	family_meduza
behavioral1/memory/1652-30-0x0000000140000000-0x00000001400D3000-memory.dmp	family_meduza

Downloads MZ/PE file

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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe

Executes dropped EXE 1 IoCs

pid	Process
3460	KK4sWKQRIEwmL.exe

Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	api.ipify.org
19	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3460 set thread context of 1652	3460	KK4sWKQRIEwmL.exe	116

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
5036	788	WerFault.exe	83
3220	788	WerFault.exe	83
368	788	WerFault.exe	83
5024	788	WerFault.exe	83
4184	788	WerFault.exe	83
5076	788	WerFault.exe	83
4268	788	WerFault.exe	83
4024	788	WerFault.exe	83
2848	788	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
4296	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
336	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3460	KK4sWKQRIEwmL.exe
1652	ngen.exe
1652	ngen.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3460	KK4sWKQRIEwmL.exe
Token: SeDebugPrivilege	4296	taskkill.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 788 wrote to memory of 3460	788	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe	106
PID 788 wrote to memory of 3460	788	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe	106
PID 788 wrote to memory of 3940	788	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe	111
PID 788 wrote to memory of 3940	788	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe	111
PID 788 wrote to memory of 3940	788	79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe	111
PID 3940 wrote to memory of 4296	3940	cmd.exe	115
PID 3940 wrote to memory of 4296	3940	cmd.exe	115
PID 3940 wrote to memory of 4296	3940	cmd.exe	115
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 1652	3460	KK4sWKQRIEwmL.exe	116
PID 3460 wrote to memory of 680	3460	KK4sWKQRIEwmL.exe	117
PID 3460 wrote to memory of 680	3460	KK4sWKQRIEwmL.exe	117
PID 1652 wrote to memory of 4408	1652	ngen.exe	122
PID 1652 wrote to memory of 4408	1652	ngen.exe	122
PID 4408 wrote to memory of 336	4408	cmd.exe	124
PID 4408 wrote to memory of 336	4408	cmd.exe	124

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ngen.exe

C:\Users\Admin\AppData\Local\Temp\79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe
"C:\Users\Admin\AppData\Local\Temp\79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 740
  2⤵
  - Program crash
  PID:5036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 748
  2⤵
  - Program crash
  PID:3220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 748
  2⤵
  - Program crash
  PID:368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 784
  2⤵
  - Program crash
  PID:5024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 904
  2⤵
  - Program crash
  PID:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 980
  2⤵
  - Program crash
  PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 1008
  2⤵
  - Program crash
  PID:4268
- C:\Users\Admin\AppData\Roaming\xhjtm0GI\KK4sWKQRIEwmL.exe
  "C:\Users\Admin\AppData\Roaming\xhjtm0GI\KK4sWKQRIEwmL.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3460
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    - outlook_office_path
    - outlook_win_path
    PID:1652
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4408
    - - C:\Windows\system32\PING.EXE
        
        ping 1.1.1.1 -n 1 -w 3000
        5⤵
        Runs ping.exe
        
        PID:336
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe"
    3⤵
    PID:680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 1392
  2⤵
  - Program crash
  PID:4024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3940
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "79a4957f909897760a7424a0c3f249b1363cd39ebdbcbee84b25b696bd6a3dce.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 1212
  2⤵
  - Program crash
  PID:2848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 788 -ip 788
1⤵
PID:3484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 788 -ip 788
1⤵
PID:8

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 788 -ip 788
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 788 -ip 788
1⤵
PID:4008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 788 -ip 788
1⤵
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 788 -ip 788
1⤵
PID:3928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 788 -ip 788
1⤵
PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 788 -ip 788
1⤵
PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 788 -ip 788
1⤵
PID:896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\xhjtm0GI\KK4sWKQRIEwmL.exe

Filesize
1.2MB

MD5
d5ee9fddce1e3c295fab1217635d4f4f

SHA1
3adff98319b93f619935a3e2e909c4f0b8eeea1e

SHA256
9f5a3c3cb8137e0defa3dca79ddf85261fc84a06b6b8445bb6d55e51ff5fef0a

SHA512
bc4881f963d807da1e8ba033d67b9f75f2106e7ded5580e96828760fadef55a2ab7cf7064ea6811d0a60e5255b12ba466842a0e6ba4867c7389fabd120445d4d

Download Submit
memory/788-2-0x00000000025B0000-0x00000000025DD000-memory.dmp

Filesize
180KB

Download
memory/788-3-0x0000000000400000-0x000000000085E000-memory.dmp

Filesize
4.4MB

Download
memory/788-1-0x0000000000880000-0x0000000000980000-memory.dmp

Filesize
1024KB

Download
memory/788-22-0x00000000025B0000-0x00000000025DD000-memory.dmp

Filesize
180KB

Download
memory/788-20-0x0000000000400000-0x000000000085E000-memory.dmp

Filesize
4.4MB

Download
memory/1652-17-0x0000000140000000-0x00000001400D3000-memory.dmp

Filesize
844KB

Download
memory/1652-30-0x0000000140000000-0x00000001400D3000-memory.dmp

Filesize
844KB

Download
memory/1652-19-0x0000000140000000-0x00000001400D3000-memory.dmp

Filesize
844KB

Download
memory/1652-18-0x0000000140000000-0x00000001400D3000-memory.dmp

Filesize
844KB

Download
memory/1652-16-0x0000000140000000-0x00000001400D3000-memory.dmp

Filesize
844KB

Download
memory/3460-10-0x000001A27E030000-0x000001A27E03A000-memory.dmp

Filesize
40KB

Download
memory/3460-15-0x000001A2186C0000-0x000001A2187E6000-memory.dmp

Filesize
1.1MB

Download
memory/3460-14-0x000001A27E420000-0x000001A27E43E000-memory.dmp

Filesize
120KB

Download
memory/3460-13-0x000001A218890000-0x000001A2188A0000-memory.dmp

Filesize
64KB

Download
memory/3460-12-0x000001A27FDB0000-0x000001A27FE26000-memory.dmp

Filesize
472KB

Download
memory/3460-29-0x00007FFFC60A0000-0x00007FFFC6B61000-memory.dmp

Filesize
10.8MB

Download
memory/3460-11-0x00007FFFC60A0000-0x00007FFFC6B61000-memory.dmp

Filesize
10.8MB

Download