File name: | flk.exe |
Full analysis: | https://app.any.run/tasks/113a6d57-7498-4fe2-9ab6-a371ea26e52b |
Verdict: | Malicious activity |
Threats: | Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. |
Analysis date: | November 15, 2018, 08:37:28 |
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: | 13CC98FCB654AC83CDA6D3EC9946FA9B |
SHA1: | 2CD620CEA310B0EDB68E4BB27301B2563191287B |
SHA256: | 0E0729B51709325688F2741E2D5C6B3F547901837D89C203CB8AA2985B5F0018 |
SSDEEP: | 3072:sworbBFppjjAu82PEKBlI9r20uYNk9TAAn4o0eA:s9rFFHjLSKBlI9r20uYNk9TwD |
.exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
---|---|---|
.exe | | | Win64 Executable (generic) (37.3) |
.dll | | | Win32 Dynamic Link Library (generic) (8.8) |
.exe | | | Win32 Executable (generic) (6) |
.exe | | | Generic Win/DOS Executable (2.7) |
MachineType: | Intel 386 or later, and compatibles |
---|---|
TimeStamp: | 2018:10:31 10:10:07+01:00 |
PEType: | PE32 |
LinkerVersion: | 11 |
CodeSize: | 29696 |
InitializedDataSize: | 81920 |
UninitializedDataSize: | - |
EntryPoint: | 0x2a20 |
OSVersion: | 5.1 |
ImageVersion: | - |
SubsystemVersion: | 5.1 |
Subsystem: | Windows GUI |
FileVersionNumber: | 2.0.4.9 |
ProductVersionNumber: | 2.0.4.9 |
FileFlagsMask: | 0x003f |
FileFlags: | (none) |
FileOS: | Windows NT 32-bit |
ObjectFileType: | Executable application |
FileSubtype: | - |
LanguageCode: | Unknown (0464) |
CharacterSet: | Unicode |
CompanyName: | MS DefenderApplication |
FileDescription: | MS DefenderApplicationController |
FileVersion: | 2.0.4.9 |
LegalCopyright: | DefenderApplication Copyright (C) 1993 - 2018 |
OriginalFileName: | DefenderApplication.exe |
ProductVersion: | 2.0.4.9 |
Architecture: | IMAGE_FILE_MACHINE_I386 |
---|---|
Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
Compilation Date: | 31-Oct-2018 09:10:07 |
Detected languages: |
|
CompanyName: | MS DefenderApplication |
FileDescription: | MS DefenderApplicationController |
FileVersion: | 2.0.4.9 |
LegalCopyright: | DefenderApplication Copyright (C) 1993 - 2018 |
OriginalFilename: | DefenderApplication.exe |
ProductVersion: | 2.0.4.9 |
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: | 0x000000E8 |
Signature: | PE |
---|---|
Machine: | IMAGE_FILE_MACHINE_I386 |
Number of sections: | 5 |
Time date stamp: | 31-Oct-2018 09:10:07 |
Pointer to Symbol Table: | 0x00000000 |
Number of symbols: | 0 |
Size of Optional Header: | 0x00E0 |
Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
---|---|---|---|---|---|
.text | 0x00001000 | 0x000072C0 | 0x00007400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.47208 |
.rdata | 0x00009000 | 0x000059E2 | 0x00005A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.82613 |
.data | 0x0000F000 | 0x00002D34 | 0x00000E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.36702 |
.rsrc | 0x00012000 | 0x0000A038 | 0x0000A200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.00551 |
.reloc | 0x0001D000 | 0x000014A0 | 0x00001600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 4.93222 |
Title | Entropy | Size | Codepage | Language | Type |
---|---|---|---|---|---|
1 | 4.8858 | 145 | UNKNOWN | English - United States | RT_MANIFEST |
81 | 2.22224 | 80 | UNKNOWN | English - United States | RT_STRING |
83 | 3.37872 | 288 | UNKNOWN | English - United States | RT_STRING |
87 | 2.59708 | 102 | UNKNOWN | English - United States | RT_STRING |
89 | 2.19869 | 78 | UNKNOWN | English - United States | RT_STRING |
90 | 3.13445 | 178 | UNKNOWN | English - United States | RT_STRING |
98 | 2.7097 | 124 | UNKNOWN | English - United States | RT_STRING |
99 | 2.33905 | 84 | UNKNOWN | English - United States | RT_STRING |
101 | 2.66004 | 108 | UNKNOWN | English - United States | RT_STRING |
128 | 2.45714 | 94 | UNKNOWN | English - United States | RT_STRING |
ADVAPI32.dll |
COMDLG32.dll |
GDI32.dll |
KERNEL32.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
WININET.dll |
WINSPOOL.DRV |
ole32.dll |
PID | CMD | Path | Indicators | Parent process |
---|---|---|---|---|
3360 | "C:\Users\admin\AppData\Local\Temp\flk.exe" | C:\Users\admin\AppData\Local\Temp\flk.exe | explorer.exe | |
User: admin Company: MS DefenderApplication Integrity Level: MEDIUM Description: MS DefenderApplicationController Version: 2.0.4.9 | ||||
3028 | "C:\Windows\System32\cmd.exe" /C systeminfo >> C:\ProgramData\INFOCONTENT.TXT | C:\Windows\System32\cmd.exe | — | flk.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) | ||||
3480 | systeminfo | C:\Windows\system32\systeminfo.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Displays system information Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
3456 | "C:\Windows\System32\cmd.exe" /C net view >>C:\ProgramData\INFOCONTENT.TXT | C:\Windows\System32\cmd.exe | — | flk.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) | ||||
652 | net view | C:\Windows\system32\net.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Net Command Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
3412 | "C:\Windows\System32\cmd.exe" /C ipconfig >> C:\ProgramData\INFOCONTENT.TXT | C:\Windows\System32\cmd.exe | — | flk.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) | ||||
3812 | ipconfig | C:\Windows\system32\ipconfig.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: IP Configuration Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
3436 | "C:\Windows\System32\cmd.exe" /C whoami >> C:\ProgramData\INFOCONTENT.TXT | C:\Windows\System32\cmd.exe | — | flk.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) | ||||
3832 | whoami | C:\Windows\system32\whoami.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: whoami - displays logged on user information Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) |
PID | Process | Filename | Type | |
---|---|---|---|---|
3456 | cmd.exe | C:\ProgramData\INFOCONTENT.TXT | text | |
MD5:745FD1C64E2F48E0D03617576598FE98 | SHA256:F12EB0A3E7FF8A534BC5216EC1A2C101094E0D7D15FC9087D3931D6FABBF7ABC | |||
3412 | cmd.exe | C:\ProgramData\INFOCONTENT.TXT | text | |
MD5:A9CD3ED9EDA7B4AE79200A2168F54A8A | SHA256:C37E502201D17A75FA5EC7C76B38AC416DAAD305C244CFA8FBF3AC8F8E9E8B01 | |||
3028 | cmd.exe | C:\ProgramData\INFOCONTENT.TXT | text | |
MD5:ED7C42C3DAFC42ADB98601A931913DBF | SHA256:CF9CD0CCD90D4F5A2DFED22EECDE5AEE90709C641EC0BA1A3B8F38FA77ECDAFC | |||
3436 | cmd.exe | C:\ProgramData\INFOCONTENT.TXT | text | |
MD5:4287D8CF74B7B994403BB6006DF5928C | SHA256:DF1F48E7528DE9E58D93604EF18ACB2703639D2BD3CD3A069B15CD0E7B773C7E | |||
3360 | flk.exe | C:\Users\admin\AppData\Roaming\conhost.exe 1C9B74E8.exe | executable | |
MD5:13CC98FCB654AC83CDA6D3EC9946FA9B | SHA256:0E0729B51709325688F2741E2D5C6B3F547901837D89C203CB8AA2985B5F0018 |
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
---|---|---|---|---|---|---|---|---|---|
3360 | flk.exe | POST | 200 | 146.0.72.188:80 | http://146.0.72.188/ipv6/mod/checker_info.php | NL | text | 65 b | malicious |
3360 | flk.exe | GET | 200 | 146.0.72.188:80 | http://146.0.72.188/ipv6/ipvcheck.php?dns=c4ba3647 | NL | text | 5 b | malicious |
3360 | flk.exe | GET | 200 | 146.0.72.188:80 | http://146.0.72.188/ipv6/ipvcheck.php?dns=c4ba3647 | NL | text | 5 b | malicious |
PID | Process | IP | Domain | ASN | CN | Reputation |
---|---|---|---|---|---|---|
3360 | flk.exe | 146.0.72.188:80 | — | Hostkey B.v. | NL | malicious |
PID | Process | Class | Message |
---|---|---|---|
3360 | flk.exe | A Network Trojan was detected | MALWARE [PTsecurity] SystemInfo Exfiltration |
3360 | flk.exe | A Network Trojan was detected | MALWARE [PTsecurity] SystemInfo Exfiltration |
3360 | flk.exe | Potentially Bad Traffic | GPL ATTACK_RESPONSE command completed |
3360 | flk.exe | A Network Trojan was detected | ET TROJAN TrueBot/Silence.Downloader Keep-Alive |
3360 | flk.exe | Misc activity | SUSPICIOUS [PTsecurity] Possible TrojanDownloader |
3360 | flk.exe | A Network Trojan was detected | ET TROJAN TrueBot/Silence.Downloader Keep-Alive |
3360 | flk.exe | Misc activity | SUSPICIOUS [PTsecurity] Possible TrojanDownloader |