analyze malware
- Huge database of samples and IOCs
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- Interactive approach
| File name: | grest.exe |
| Full analysis: | https://app.any.run/tasks/8c4752e0-eb8c-4b32-a263-1e8bb18d5b06 |
| 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 08, 2018, 07:03:56 |
| 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: | 44724DDCACF70B2163F2F252E44B4447 |
| SHA1: | A0BC19202D7BCAF2FB86BC197000E6C13CDBD44B |
| SHA256: | B8A9EBF11FEDD0C2D967EEE916C7FF560367DD71DFA4F1D0174D56E7492BDF0E |
| SSDEEP: | 6144:YEbhprxluH0FeedpQ9N5PZJ/Nb7ismuj3JhB:Ywxlk5//NbfZh |
MALICIOUS
Application was dropped or rewritten from another process
- JXAK3RASEROWSEIUNZF43XX.exe (PID: 3028)
Changes the autorun value in the registry
- grest.exe (PID: 4064)
DUPZOM was detected
- JXAK3RASEROWSEIUNZF43XX.exe (PID: 3028)
SUSPICIOUS
Executable content was dropped or overwritten
- grest.exe (PID: 4064)
Creates files in the program directory
- JXAK3RASEROWSEIUNZF43XX.exe (PID: 3028)
Creates or modifies windows services
- JXAK3RASEROWSEIUNZF43XX.exe (PID: 3028)
Connects to unusual port
- JXAK3RASEROWSEIUNZF43XX.exe (PID: 3028)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x5d001 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 229888 |
| CodeSize: | 24064 |
| LinkerVersion: | 6 |
| PEType: | PE32 |
| TimeStamp: | 2018:11:06 07:31:16+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 06-Nov-2018 06:31:16 |
| Detected languages: |
|
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: | 0x000000E8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 8 |
| Time date stamp: | 06-Nov-2018 06:31:16 |
| 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 | 0x00006000 | 0x00002E00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.94885 |
.rdata | 0x00007000 | 0x00001000 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.87685 |
.data | 0x00008000 | 0x00033000 | 0x0001FE00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.9977 |
0 | 0x0003B000 | 0x00010000 | 0x0000D600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.99604 |
1 | 0x0004B000 | 0x0000C000 | 0x0000A000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.98082 |
.rsrc | 0x00057000 | 0x00006000 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.05846 |
.aspack | 0x0005D000 | 0x00007000 | 0x00006800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.97494 |
.adata | 0x00064000 | 0x00001000 | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.77792 | 357 | UNKNOWN | Chinese - PRC | RT_MANIFEST |
2 | 1.58266 | 8500 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 3.11741 | 744 | UNKNOWN | UNKNOWN | RT_ICON |
4 | 3.15442 | 296 | UNKNOWN | UNKNOWN | RT_ICON |
5 | 1.59366 | 2440 | UNKNOWN | UNKNOWN | RT_ICON |
121 | 2.99642 | 76 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
Ws2_32.dll |
advapi32.dll |
iphlpapi.dll |
keRnel32.dll |
msvcrt.dll |
user32.Dll |
Total processes
35
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 3692 | "C:\Users\admin\AppData\Local\Temp\grest.exe" | C:\Users\admin\AppData\Local\Temp\grest.exe | — | explorer.exe |
User: admin Integrity Level: MEDIUM Exit code: 3221226540 | ||||
| 4064 | "C:\Users\admin\AppData\Local\Temp\grest.exe" | C:\Users\admin\AppData\Local\Temp\grest.exe | explorer.exe | |
User: admin Integrity Level: HIGH Exit code: 0 | ||||
| 3028 | C:\Users\admin\AppData\Local\Temp\JXAK3RASEROWSEIUNZF43XX.exe | C:\Users\admin\AppData\Local\Temp\JXAK3RASEROWSEIUNZF43XX.exe | grest.exe | |
User: admin Integrity Level: HIGH | ||||
Total events
48
Read events
27
Write events
21
Delete events
0
Modification events
| (PID) Process: | (4064) grest.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | FAA37AIXNF3K34LAI8NX |
Value: C:\Users\admin\AppData\Local\Temp\grest.exe | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3028) JXAK3RASEROWSEIUNZF43XX.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JXAK3RASEROWSEIUNZF43XX_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
Executable files
1
Suspicious files
2
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3028 | JXAK3RASEROWSEIUNZF43XX.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\barobam[1].dll | binary | |
MD5:453C44971D43BA21DF341B4DF735F6D1 | SHA256:F86813BAB9AF3431042D8C7E288797A5682E94F36F52ADCDCC69E8F8E9282B4D | |||
| 3028 | JXAK3RASEROWSEIUNZF43XX.exe | C:\Program Files\AppPatch\lpDllName | binary | |
MD5:453C44971D43BA21DF341B4DF735F6D1 | SHA256:F86813BAB9AF3431042D8C7E288797A5682E94F36F52ADCDCC69E8F8E9282B4D | |||
| 4064 | grest.exe | C:\Users\admin\AppData\Local\Temp\JXAK3RASEROWSEIUNZF43XX.exe | executable | |
MD5:076B227B5DA7C3BDC29F27A4659A11AB | SHA256:7A0CBEE16964745F2BA9EC1F47A775A39434D2D8E8785552E2D10A4A36C1E710 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
4
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3028 | JXAK3RASEROWSEIUNZF43XX.exe | GET | 200 | 43.255.29.37:80 | http://www.damoaok.com/barobam.dll | HK | binary | 228 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3028 | JXAK3RASEROWSEIUNZF43XX.exe | 43.255.29.37:80 | www.damoaok.com | SonderCloud Limited | HK | malicious |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | 103.254.150.148:2222 | www.damoaip.com | SonderCloud Limited | HK | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
gms.ahnlab.com |
| unknown |
www.damoaok.com |
| malicious |
www.damoaip.com |
| malicious |
6to4.ipv6.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | ET MALWARE User-Agent (Mozilla/4.0 (compatible)) |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | Potentially Bad Traffic | SC BAD_UNKNOWN Suspicious user-agent, which might be used by Trojan.GenericKD.40408029 |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Win32/Dupzom Payload |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient Response |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient Response |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient Response |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient Response |
3028 | JXAK3RASEROWSEIUNZF43XX.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Win32.PcClient Response |
1 ETPRO signatures available at the full report