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| File name: | fb.exe |
| Full analysis: | https://app.any.run/tasks/10ffddb4-88b8-40e2-956b-6ef510635bcd |
| Verdict: | Malicious activity |
| Threats: | FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. |
| Analysis date: | August 25, 2019, 16:16:13 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | E0340C1C1FEB4B0C9195AC7E4D1F6A58 |
| SHA1: | C0D41F3348752DEE2A3CBED3195E81486FBA8104 |
| SHA256: | F11707C91F93A5AA9EB411DAF69DF3213C47016865F5A9A9C3B289F9D3323CCE |
| SSDEEP: | 3072:BdsKPWPJR/qIr/SSTOdteAwkyMOiIH2E1jbwq1vHRy:nolSwAVwkyMyHXjk |
MALICIOUS
FORMBOOK was detected
- explorer.exe (PID: 276)
Connects to CnC server
- explorer.exe (PID: 276)
Changes the autorun value in the registry
- wuauclt.exe (PID: 3440)
Formbook was detected
- Firefox.exe (PID: 3984)
- wuauclt.exe (PID: 3440)
Actions looks like stealing of personal data
- wuauclt.exe (PID: 3440)
Stealing of credential data
- wuauclt.exe (PID: 3440)
SUSPICIOUS
Creates files in the user directory
- wuauclt.exe (PID: 3440)
Starts CMD.EXE for commands execution
- wuauclt.exe (PID: 3440)
Loads DLL from Mozilla Firefox
- wuauclt.exe (PID: 3440)
INFO
Manual execution by user
- wuauclt.exe (PID: 3440)
Creates files in the user directory
- Firefox.exe (PID: 3984)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | DOS Executable Generic (100) |
|---|
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2010:08:20 06:56:42+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 10 |
| CodeSize: | 167424 |
| InitializedDataSize: | - |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1b6e0 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 20-Aug-2010 04:56:42 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x5245 |
| Pages in file: | 0x00E8 |
| Relocations: | 0x0000 |
| Size of header: | 0x5800 |
| Min extra paragraphs: | 0xE883 |
| Max extra paragraphs: | 0x8B09 |
| Initial SS value: | 0x83C8 |
| Initial SP value: | 0x3CC0 |
| Checksum: | 0x008B |
| Initial IP value: | 0xC103 |
| Initial CS value: | 0xC083 |
| Overlay number: | 0xFF08 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x000000C0 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 1 |
| Time date stamp: | 20-Aug-2010 04:56:42 |
| 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 | 0x00001000 | 0x0002A000 | 0x0002A000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.31596 |
Total processes
36
Monitored processes
5
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2752 | "C:\Users\admin\AppData\Local\Temp\fb.exe" | C:\Users\admin\AppData\Local\Temp\fb.exe | — | explorer.exe |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 3440 | "C:\Windows\System32\wuauclt.exe" | C:\Windows\System32\wuauclt.exe | explorer.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Update Version: 7.5.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3992 | /c del "C:\Users\admin\AppData\Local\Temp\fb.exe" | C:\Windows\System32\cmd.exe | — | wuauclt.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 276 | C:\Windows\Explorer.EXE | C:\Windows\explorer.exe | — | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3984 | "C:\Program Files\Mozilla Firefox\Firefox.exe" | C:\Program Files\Mozilla Firefox\Firefox.exe | wuauclt.exe | |
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 68.0.1 | ||||
Total events
24
Read events
23
Write events
1
Delete events
0
Modification events
| (PID) Process: | (3440) wuauclt.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | ZBCL8RBPATT |
Value: C:\Program Files\Vdz7\ntkdxhpc.exe | |||
Executable files
0
Suspicious files
73
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3440 | wuauclt.exe | C:\Users\admin\AppData\Roaming\O2A719UB\O2Alogrc.ini | binary | |
MD5:2855A82ECDD565B4D957EC2EE05AED26 | SHA256:88E38DA5B12DD96AFD9DC90C79929EC31D8604B1AFDEBDD5A02B19249C08C939 | |||
| 3440 | wuauclt.exe | C:\Users\admin\AppData\Roaming\O2A719UB\O2Alogim.jpeg | image | |
MD5:F7C5B7FAB50FA6CCD7776D0E626507A8 | SHA256:01B1975613E25A0B0DDF4CBFE9182F048F712F63F71074D08FA1A0FCD39AE93B | |||
| 3440 | wuauclt.exe | C:\Users\admin\AppData\Roaming\O2A719UB\O2Alogri.ini | binary | |
MD5:D63A82E5D81E02E399090AF26DB0B9CB | SHA256:EAECE2EBA6310253249603033C744DD5914089B0BB26BDE6685EC9813611BAAE | |||
| 3984 | Firefox.exe | C:\Users\admin\AppData\Roaming\O2A719UB\O2Alogrf.ini | binary | |
MD5:53028481B5B5795F1501241CCC7ABFF6 | SHA256:75B5F3045E20C80F264568707E2D444DC7498DB119D9661AE51A91575960FC5A | |||
| 3440 | wuauclt.exe | C:\Users\admin\AppData\Roaming\O2A719UB\O2Alogrv.ini | binary | |
MD5:BA3B6BC807D4F76794C4B81B09BB9BA5 | SHA256:6EEBF968962745B2E9DE2CA969AF7C424916D4E3FE3CC0BB9B3D414ABFCE9507 | |||
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
1
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
276 | explorer.exe | GET | — | 156.235.193.58:80 | http://www.dongfangyonghui.com/u02/?9rAHiH=pdb16eBbs8BqnihBFJ4zSXdfmEP0CnlvoQTe/efvQdRBxFhROIbbyqhBEtjHsqKhwGejww==&Q6Q=_0yLujFPZdnxQ | US | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
276 | explorer.exe | 156.235.193.58:80 | www.dongfangyonghui.com | DXTL Tseung Kwan O Service | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.dongfangyonghui.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
276 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (GET) |
1 ETPRO signatures available at the full report