f33e8db7a25ec1c123fa8fb3094daaa5d6a630c1c19a4bcd61dca06ed7c339ff

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 05:24

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General

Target

2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe
Size

398KB
MD5

0d9d6b9514db21df74aff5e7d9a66c6f
SHA1

622b49e0bfd5c2524776936d70a3c0366030b6ba
SHA256

f33e8db7a25ec1c123fa8fb3094daaa5d6a630c1c19a4bcd61dca06ed7c339ff
SHA512

51cad109f958bccee8c322e7d1ec0182d317bf44a59288159c418995a6dc0b6274039f8f1232bd6268e5b335358d1fb8eac5bc9f2270d4125f03e6178a4d005e
SSDEEP

12288:EnmOeWHehSjfhiPsxOticWgeEqq1sdeYo5H:EnmQISbA0wicWR

Score

7^/10

collection spyware stealer

Malware Config

Signatures

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe

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

System Information Discovery
T1082

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1468	systeminfo.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 2380	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	30
PID 1252 wrote to memory of 2380	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	30
PID 1252 wrote to memory of 2380	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	30
PID 2380 wrote to memory of 1468	2380	cmd.exe	32
PID 2380 wrote to memory of 1468	2380	cmd.exe	32
PID 2380 wrote to memory of 1468	2380	cmd.exe	32
PID 1252 wrote to memory of 2836	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	35
PID 1252 wrote to memory of 2836	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	35
PID 1252 wrote to memory of 2836	1252	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe	35

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_0d9d6b9514db21df74aff5e7d9a66c6f_cobalt-strike_ryuk.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of WriteProcessMemory
- outlook_win_path
PID:1252
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c systeminfo > "C:\Users\Admin\AppData\Local\Temp\8C982B7Es.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\system32\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:1468
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1252 -s 372
  2⤵
  PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\8C982B7Es.txt

Filesize
1KB

MD5
08e87789b76547158121bc83baafa5d2

SHA1
535e5ee32320e4b23b96d22c5f2d9c9fba7b41ac

SHA256
2a075cf80d06527ff2e0eba96aceeffedfff29c437efbe8e5c657fff9aea7e17

SHA512
9b0fd2c9276cfc17392c3ca59a4a4354a63f2466cd5a71419bc98ad294f817d4f1bdccdc7308eb00863be73d3c527a3e78f3ae18f45f8681bd15bbd0bd25682d

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