| File name: | samsam |
| Full analysis: | https://app.any.run/tasks/9f0b4786-cc86-4bd6-8530-5a8f2d408ccc |
| 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: | April 14, 2018, 08:09:26 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 4C8FB28A68168430FD447BA1B92F4F42 |
| SHA1: | DFA673BFBF644EAEF6DC6C70FF8DB4CEED2DB8F1 |
| SHA256: | 6BC2AA391B8EF260E79B99409E44011874630C2631E4487E82B76E5CB0A49307 |
| SSDEEP: | 3072:k8dp01i6vcHV1LI5FLV0pZeZKfOJizjrBnNtRg+ur199JNk9bVoop:+1i6UHVyLV0poZa1jrD099jk9 |
MALICIOUS
Application was dropped or rewritten from another process
- selfdel.exe (PID: 3544)
Deletes shadow copies
- samsam.exe (PID: 1128)
Actions looks like stealing of personal data
- samsam.exe (PID: 1128)
Modifies files in Chrome extension folder
- samsam.exe (PID: 1128)
SUSPICIOUS
Creates files in the program directory
- samsam.exe (PID: 1128)
Creates files like Ransomware instruction
- samsam.exe (PID: 1128)
Creates files like Ransomware
- samsam.exe (PID: 1128)
Creates files in the user directory
- samsam.exe (PID: 1128)
INFO
Loads the .NET runtime environment
- samsam.exe (PID: 1128)
- selfdel.exe (PID: 3544)
Dropped object may contain URL's
- samsam.exe (PID: 1128)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2015:12:10 01:43:00+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 193536 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3133e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| FileDescription: | SAM |
| FileVersion: | 1.0.0.0 |
| InternalName: | samsam.exe |
| LegalCopyright: | Copyright © 2015 |
| OriginalFileName: | samsam.exe |
| ProductName: | SAM |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Dec-2015 00:43:00 |
| Debug artifacts: |
|
| FileDescription: | SAM |
| FileVersion: | 1.0.0.0 |
| InternalName: | samsam.exe |
| LegalCopyright: | Copyright © 2015 |
| OriginalFilename: | samsam.exe |
| ProductName: | SAM |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 10-Dec-2015 00:43:00 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x0002F344 | 0x0002F400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.5015 |
.rsrc | 0x00032000 | 0x00000520 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.86092 |
.reloc | 0x00034000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
39
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1128 | "C:\Users\admin\AppData\Local\Temp\samsam.exe" | C:\Users\admin\AppData\Local\Temp\samsam.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: SAM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2764 | "vssadmin" delete shadows /all /quiet | C:\Windows\system32\vssadmin.exe | — | samsam.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3544 | "C:\Users\admin\AppData\Local\Temp\selfdel.exe" | C:\Users\admin\AppData\Local\Temp\selfdel.exe | — | samsam.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: selfdel Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
Total events
3 273
Read events
50
Write events
1 465
Delete events
1 758
Modification events
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Owner |
Value: 68040000583269F0C7D3D301 | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | SessionHash |
Value: 8D121AFB64918D881604BD617EDA606B06A992416C30C5B40EEA107F4B9CE55B | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Sequence |
Value: 1 | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFiles0000 |
Value: C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-FFFF-7B44-AC0F074E4100}\Data1.cab | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFilesHash |
Value: B8B825F37CED041EDABFD94A02A556B5BB4BD231237ABC5DE25562307B0DA74B | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | RegFilesHash |
Value: B8B825F37CED041EDABFD94A02A556B5BB4BD231237ABC5DE25562307B0DA74B | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | RegFiles0000 |
Value: C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-FFFF-7B44-AC0F074E4100}\Data1.cab | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | Sequence |
Value: 1 | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | SessionHash |
Value: 8D121AFB64918D881604BD617EDA606B06A992416C30C5B40EEA107F4B9CE55B | |||
| (PID) Process: | (1128) samsam.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | Owner |
Value: 68040000583269F0C7D3D301 | |||
Executable files
2
Suspicious files
51
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1128 | samsam.exe | C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-FFFF-7B44-AC0F074E4100}\Data1.cab.encryptedRSA | binary | |
MD5:— | SHA256:— | |||
| 1128 | samsam.exe | C:\Users\admin\AppData\Local\Temp\del.exe | executable | |
MD5:E189B5CE11618BB7880E9B09D53A588F | SHA256:97D27E1225B472A63C88AC9CFB813019B72598B9DD2D70FE93F324F7D034FB95 | |||
| 1128 | samsam.exe | C:\Users\admin\AppData\Local\Temp\selfdel.exe | executable | |
MD5:710A45E007502B8F42A27EE05DCD2FBA | SHA256:32445C921079AA3E26A376D70EF6550BAFEB1F6B0B7037EF152553BB5DAD116F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
1
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
DNS requests
Domain | IP | Reputation |
|---|---|---|
teredo.ipv6.microsoft.com |
| whitelisted |