meduza | ee3ee7281e5212dce46722ae11d7ee506227ec7d209d842c75ade53e526684fe

General

Target

Client/Client.exe
Size

59.8MB
MD5

07185b28ac6e7b8a49d452ededb9a6f8
SHA1

2390ff463d4cb37799f46081f381fc7a8551a959
SHA256

d30a1b9d067bac02d43e660d0c3924e44fb64becef529a86b9eb0799312d97be
SHA512

7f8852e4b8db80c22370ee62d49c1e5871551dd7e4a0ab56d5f7e1479ba9dffc1a11e0a92318c139322663f1c9c287ac8e0aecd9e0d758bd4ca8ccb46cb6d937
SSDEEP

786432:L9T/j0+mSyv3+gc5ibDB28+oFwjvYKM289vy3TOZ34wWIN34:L9T/j1mSyvf28+u289l4u

Score

10^/10

meduza discovery execution stealer

Malware Config

Extracted

Family

meduza

C2

176.124.204.206

Attributes

anti_dbg
true
anti_vm
true
build_name
mounew
extensions
.txt
grabber_max_size
1.048576e+06
port
15666
self_destruct
false

Signatures

Meduza
Meduza is a crypto wallet and info stealer written in C++.
stealer meduza

Meduza Stealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/376-61-0x000001B492EB0000-0x000001B492FF3000-memory.dmp	family_meduza

Meduza family
meduza

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1584	powershell.exe

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	b2c2zo3w.jbx.exe

Executes dropped EXE 1 IoCs

pid	Process
376	b2c2zo3w.jbx.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1584	powershell.exe
1584	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1584	powershell.exe
Token: SeDebugPrivilege	376	b2c2zo3w.jbx.exe
Token: SeImpersonatePrivilege	376	b2c2zo3w.jbx.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 1584	2884	Client.exe	86
PID 2884 wrote to memory of 1584	2884	Client.exe	86
PID 2884 wrote to memory of 1584	2884	Client.exe	86
PID 2884 wrote to memory of 376	2884	Client.exe	95
PID 2884 wrote to memory of 376	2884	Client.exe	95

C:\Users\Admin\AppData\Local\Temp\Client\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client\Client.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath 'C:\Windows\Temp'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1584
- C:\Windows\Temp\b2c2zo3w.jbx.exe
  "C:\\Windows\\Temp\b2c2zo3w.jbx.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s4vppcyv.rwc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\Temp\b2c2zo3w.jbx.exe

Filesize
1.8MB

MD5
8e2766a1d5ffabdae6603d9dffc5d4bf

SHA1
45f1bedf90db66c5af35e80f93d8d0a6181485a5

SHA256
127a36b98ea43a374146a0dd7bef8a0323db12a6a74eff3290d3974a1f077714

SHA512
adc31e9fe214424f80604383be44b8d9ec9dfd8a5c968dd5b037f0df757e99bb071ceb0019bf98c6b169f7fe328db7fe84a7f1586504fc0e4281830279eb1ecd

Download Submit
memory/376-64-0x00007FF7C30F4000-0x00007FF7C30F5000-memory.dmp

Filesize
4KB

Download
memory/376-63-0x00007FF7C30D0000-0x00007FF7C32A9000-memory.dmp

Filesize
1.8MB

Download
memory/376-61-0x000001B492EB0000-0x000001B492FF3000-memory.dmp

Filesize
1.3MB

Download
memory/376-62-0x00007FF7C30D0000-0x00007FF7C32A9000-memory.dmp

Filesize
1.8MB

Download
memory/376-58-0x00007FF7C30F4000-0x00007FF7C30F5000-memory.dmp

Filesize
4KB

Download
memory/376-52-0x00007FFBE95B0000-0x00007FFBE95B1000-memory.dmp

Filesize
4KB

Download
memory/1584-35-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-38-0x0000000007520000-0x000000000752A000-memory.dmp

Filesize
40KB

Download
memory/1584-19-0x0000000006220000-0x000000000626C000-memory.dmp

Filesize
304KB

Download
memory/1584-18-0x0000000006190000-0x00000000061AE000-memory.dmp

Filesize
120KB

Download
memory/1584-20-0x0000000006760000-0x0000000006792000-memory.dmp

Filesize
200KB

Download
memory/1584-21-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-32-0x0000000007160000-0x000000000717E000-memory.dmp

Filesize
120KB

Download
memory/1584-33-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-22-0x0000000070D60000-0x0000000070DAC000-memory.dmp

Filesize
304KB

Download
memory/1584-34-0x0000000007180000-0x0000000007223000-memory.dmp

Filesize
652KB

Download
memory/1584-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

Filesize
4KB

Download
memory/1584-36-0x0000000007B00000-0x000000000817A000-memory.dmp

Filesize
6.5MB

Download
memory/1584-37-0x00000000074B0000-0x00000000074CA000-memory.dmp

Filesize
104KB

Download
memory/1584-14-0x0000000005BD0000-0x0000000005F24000-memory.dmp

Filesize
3.3MB

Download
memory/1584-39-0x0000000007750000-0x00000000077E6000-memory.dmp

Filesize
600KB

Download
memory/1584-40-0x00000000076D0000-0x00000000076E1000-memory.dmp

Filesize
68KB

Download
memory/1584-41-0x0000000007700000-0x000000000770E000-memory.dmp

Filesize
56KB

Download
memory/1584-42-0x0000000007710000-0x0000000007724000-memory.dmp

Filesize
80KB

Download
memory/1584-43-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/1584-44-0x00000000077F0000-0x00000000077F8000-memory.dmp

Filesize
32KB

Download
memory/1584-47-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-6-0x00000000059F0000-0x0000000005A56000-memory.dmp

Filesize
408KB

Download
memory/1584-7-0x0000000005B60000-0x0000000005BC6000-memory.dmp

Filesize
408KB

Download
memory/1584-5-0x0000000005200000-0x0000000005222000-memory.dmp

Filesize
136KB

Download
memory/1584-4-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-3-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1584-2-0x0000000005310000-0x0000000005938000-memory.dmp

Filesize
6.2MB

Download
memory/1584-1-0x0000000004BF0000-0x0000000004C26000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing