| File name: | jigsaw |
| Full analysis: | https://app.any.run/tasks/d6ee6bf7-1fbd-43e5-a6fb-082963c993fc |
| Verdict: | Malicious activity |
| Threats: | The Jigsaw ransomware, initially detected in 2016, encrypts files on compromised systems and requires a ransom payment in Bitcoin. If the ransom is not paid, the malware starts deleting files, increasing the pressure on victims to comply. Its source code is publicly accessible, allowing various threat actors to customize and repurpose the malware for different objectives. |
| Analysis date: | April 24, 2018, 13:40:54 |
| 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: | 2773E3DC59472296CB0024BA7715A64E |
| SHA1: | 27D99FBCA067F478BB91CDBCB92F13A828B00859 |
| SHA256: | 3AE96F73D805E1D3995253DB4D910300D8442EA603737A1428B613061E7F61E7 |
| SSDEEP: | 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX |
MALICIOUS
Changes the autorun value in the registry
- jigsaw.exe (PID: 2772)
Modifies files in Chrome extension folder
- drpbx.exe (PID: 2228)
Actions looks like stealing of personal data
- drpbx.exe (PID: 2228)
SUSPICIOUS
Starts itself from another location
- jigsaw.exe (PID: 2772)
Creates files in the user directory
- jigsaw.exe (PID: 2772)
- drpbx.exe (PID: 2228)
Creates files in the program directory
- drpbx.exe (PID: 2228)
INFO
Loads the .NET runtime environment
- jigsaw.exe (PID: 2772)
- drpbx.exe (PID: 2228)
Dropped object may contain Bitcoin addresses
- drpbx.exe (PID: 2228)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (61.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.6) |
| .exe | | | Win32 Executable (generic) (10) |
| .exe | | | Win16/32 Executable Delphi generic (4.6) |
| .exe | | | Generic Win/DOS Executable (4.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2016:03:31 08:28:14+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 72704 |
| InitializedDataSize: | 216576 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x4e00a |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 37.0.2.5583 |
| ProductVersionNumber: | 37.0.2.5583 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Firefox |
| FileVersion: | 37.0.2.5583 |
| InternalName: | BitcoinBlackmailer.exe |
| LegalCopyright: | Copyright 1999-2012 Firefox and Mozzilla developers. All rights reserved. |
| LegalTrademarks: | - |
| OriginalFileName: | BitcoinBlackmailer.exe |
| ProductName: | Firefox |
| ProductVersion: | 37.0.2.5583 |
| AssemblyVersion: | 37.0.2.5583 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 31-Mar-2016 06:28:14 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Firefox |
| FileVersion: | 37.0.2.5583 |
| InternalName: | BitcoinBlackmailer.exe |
| LegalCopyright: | Copyright 1999-2012 Firefox and Mozzilla developers. All rights reserved. |
| LegalTrademarks: | - |
| OriginalFilename: | BitcoinBlackmailer.exe |
| ProductName: | Firefox |
| ProductVersion: | 37.0.2.5583 |
| Assembly Version: | 37.0.2.5583 |
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: | 5 |
| Time date stamp: | 31-Mar-2016 06:28:14 |
| 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 |
|---|---|---|---|---|---|
\x01\x1e!mmUPp`B\x03 | 0x00002000 | 0x00034260 | 0x00034400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.99912 |
.text | 0x00038000 | 0x00011878 | 0x00011A00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.39056 |
.rsrc | 0x0004A000 | 0x00000650 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.58099 |
.reloc | 0x0004C000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0980042 |
0x0004E000 | 0x00000010 | 0x00000200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 0.13873 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
34
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | "C:\Users\admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\admin\AppData\Local\Temp\jigsaw.exe | C:\Users\admin\AppData\Local\Drpbx\drpbx.exe | jigsaw.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 37.0.2.5583 Modules
| |||||||||||||||
| 2772 | "C:\Users\admin\AppData\Local\Temp\jigsaw.exe" | C:\Users\admin\AppData\Local\Temp\jigsaw.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 37.0.2.5583 Modules
| |||||||||||||||
Total events
428
Read events
399
Write events
29
Delete events
0
Modification events
| (PID) Process: | (2772) jigsaw.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | firefox.exe |
Value: C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | |||
| (PID) Process: | (2772) jigsaw.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2772) jigsaw.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (2228) drpbx.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\drpbx_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
Executable files
2
Suspicious files
231
Text files
11
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2228 | drpbx.exe | C:\Users\admin\Desktop\creditlost.rtf.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\admin\Desktop\economybuilt.jpg.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\ProgramData\Microsoft\User Account Pictures\admin.dat.fun | text | |
MD5:8EBCC5CA5AC09A09376801ECDD6F3792 | SHA256:619E246FC0AC11320FF9E322A979948D949494B0C18217F4D794E1B398818880 | |||
| 2772 | jigsaw.exe | C:\Users\admin\AppData\Local\Drpbx\drpbx.exe | executable | |
MD5:2773E3DC59472296CB0024BA7715A64E | SHA256:3AE96F73D805E1D3995253DB4D910300D8442EA603737A1428B613061E7F61E7 | |||
| 2228 | drpbx.exe | C:\Users\admin\Desktop\safetyresolution.rtf.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\admin\Documents\codemountain.rtf.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\admin\Documents\culturaleasily.rtf.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\admin\Downloads\internalireland.jpg.fun | binary | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\Public\Music\Sample Music\Kalimba.mp3.fun | — | |
MD5:— | SHA256:— | |||
| 2228 | drpbx.exe | C:\Users\admin\Documents\heartrather.rtf.fun | binary | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
2
DNS requests
2
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 301 | 104.16.151.172:80 | http://btc.blockr.io/api/v1/coin/info/ | US | — | — | shared |
— | — | GET | 301 | 104.16.151.172:80 | http://btc.blockr.io/api/v1/coin/info/ | US | — | — | shared |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 104.16.151.172:80 | btc.blockr.io | Cloudflare Inc | US | shared |
— | — | 104.16.8.251:443 | www.coinbase.com | Cloudflare Inc | US | shared |
DNS requests
Domain | IP | Reputation |
|---|---|---|
btc.blockr.io |
| unknown |
www.coinbase.com |
| suspicious |