| File name: | Decryption Tool.zip |
| Full analysis: | https://app.any.run/tasks/d81350b4-502f-4068-86cb-e36873267a6d |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | February 08, 2022, 03:12:20 |
| OS: | Windows 10 Professional (build: 16299, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract |
| MD5: | 0C5C32A2EC8D4F4AC1E54546C4EE96A9 |
| SHA1: | D4491D064D0A7A42CD48987C97539941A1F8DB44 |
| SHA256: | 485A9B9E8AC1B07A5A41DC30D030D96757BE9561ECDAA64CF17ECF9A10E94E95 |
| SSDEEP: | 1536:ZnjEER+AxX+zKxgjUtbWcpjSO/k6ICS4AokLKDd:Vm+xggtbWYamAKx |
MALICIOUS
Application was dropped or rewritten from another process
- uni_dec.exe (PID: 3912)
- uni_dec.exe (PID: 3944)
- uni_dec.exe (PID: 2928)
SUSPICIOUS
Executable content was dropped or overwritten
- WinRAR.exe (PID: 3068)
Checks supported languages
- WinRAR.exe (PID: 3068)
- conhost.exe (PID: 2900)
- conhost.exe (PID: 1580)
- uni_dec.exe (PID: 3912)
- uni_dec.exe (PID: 3944)
Creates files like Ransomware instruction
- WinRAR.exe (PID: 3068)
Reads the computer name
- WinRAR.exe (PID: 3068)
- conhost.exe (PID: 2900)
- uni_dec.exe (PID: 3912)
- uni_dec.exe (PID: 3944)
- conhost.exe (PID: 1580)
Drops a file that was compiled in debug mode
- WinRAR.exe (PID: 3068)
INFO
Reads the computer name
- NOTEPAD.EXE (PID: 2216)
Manual execution by user
- uni_dec.exe (PID: 3912)
- uni_dec.exe (PID: 2928)
- uni_dec.exe (PID: 3944)
- NOTEPAD.EXE (PID: 2216)
Checks supported languages
- NOTEPAD.EXE (PID: 2216)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .zip | | | ZIP compressed archive (100) |
|---|
EXIF
ZIP
| ZipFileName: | Decryption Instructions.txt |
|---|---|
| ZipUncompressedSize: | 759 |
| ZipCompressedSize: | 759 |
| ZipCRC: | 0xd0fc08da |
| ZipModifyDate: | 2020:07:28 17:21:19 |
| ZipCompression: | None |
| ZipBitFlag: | 0x0008 |
| ZipRequiredVersion: | 20 |
Total processes
101
Monitored processes
7
Malicious processes
0
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 1580 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | \??\C:\WINDOWS\system32\conhost.exe | uni_dec.exe | |
User: admin Integrity Level: HIGH Exit code: 0 | ||||
| 2216 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\Desktop\Decryption Instructions.txt | C:\WINDOWS\system32\NOTEPAD.EXE | — | Explorer.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) | ||||
| 2900 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | \??\C:\WINDOWS\system32\conhost.exe | uni_dec.exe | |
User: admin Integrity Level: HIGH Exit code: 0 | ||||
| 2928 | "C:\Users\admin\Desktop\uni_dec.exe" | C:\Users\admin\Desktop\uni_dec.exe | — | Explorer.EXE |
User: admin Integrity Level: MEDIUM Exit code: 3221226540 | ||||
| 3068 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\Decryption Tool.zip" | C:\Program Files\WinRAR\WinRAR.exe | Explorer.EXE | |
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.60.0 | ||||
| 3912 | "C:\Users\admin\Desktop\uni_dec.exe" | C:\Users\admin\Desktop\uni_dec.exe | Explorer.EXE | |
User: admin Integrity Level: HIGH Exit code: 0 | ||||
| 3944 | "C:\Users\admin\Desktop\uni_dec.exe" | C:\Users\admin\Desktop\uni_dec.exe | Explorer.EXE | |
User: admin Integrity Level: HIGH Exit code: 0 | ||||
Total events
0
Read events
0
Write events
0
Delete events
0
Modification events
Executable files
1
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3068 | WinRAR.exe | C:\Users\admin\Desktop\uni_dec.exe | executable | |
MD5:— | SHA256:— | |||
| 3068 | WinRAR.exe | C:\Users\admin\Desktop\Decryption Instructions.txt | text | |
MD5:— | SHA256:— | |||
| 3912 | uni_dec.exe | C:\Users\admin\Desktop\DBG_LOG.TXT | ini | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
1
DNS requests
2
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2876 | svchost.exe | GET | 200 | 20.73.194.208:443 | https://settings-win.data.microsoft.com/settings/v3.0/WSD/Sediment?os=windows&sampleId=5720&osVer=10.0.16299.431.amd64fre.rs3_release_svc_escrow.180502-1908&appVer=2.0.0.0 | US | binary | 68 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2876 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | — | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |
Threats
Process | Message |
|---|---|
conhost.exe | InitSideBySide failed create an activation context. Error: 1814 |
uni_dec.exe | [DBG] |
uni_dec.exe | core_init() - Program initialization
|
uni_dec.exe | [DBG] |
uni_dec.exe | cfg:{"all": true, "master_sk": "a2KSTTgQb8D7Yj0QRMsNnEHXXgfphrZQLKJMQYelKqA=", "ext": ["universal_tool_xxx_yyy"]}
|
uni_dec.exe | [DBG] |
uni_dec.exe | start GUI
|
uni_dec.exe | [DBG] |
uni_dec.exe | start decrypt ALL
|
uni_dec.exe | [DBG] |