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| File name: | explorer.exe |
| Full analysis: | https://app.any.run/tasks/37b99bb8-a81b-4298-bc78-b19ecc0adb0f |
| Verdict: | Malicious activity |
| Threats: | Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks. |
| Analysis date: | March 21, 2019, 10:32:47 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows |
| MD5: | 2F7F1DC1E2A82FB6B9C012CABF3C6949 |
| SHA1: | D172CC1FCD512D4D22A921C3487D3E2EEA1523C2 |
| SHA256: | FB7F4162EE59EE2B23606BB50C560A8010DF95D3746C79B13F8200DE05E934AD |
| SSDEEP: | 98304:/fIJHQckibw8SPLeTtSQo5Z8DERxrfExYzwOTR2MIYW6swN2+:XIJwcfMHLKy6txpOjJW6s4 |
MALICIOUS
Loads dropped or rewritten executable
- explorer.exe (PID: 2764)
COBALTSTRIKE was detected
- explorer.exe (PID: 2764)
SUSPICIOUS
Loads Python modules
- explorer.exe (PID: 2764)
Executable content was dropped or overwritten
- explorer.exe (PID: 828)
Connects to unusual port
- explorer.exe (PID: 2764)
INFO
Dropped object may contain Bitcoin addresses
- explorer.exe (PID: 828)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.1) |
|---|---|---|
| .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) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | 1 |
| OSVersion: | 4 |
| EntryPoint: | 0x14e0 |
| UninitializedDataSize: | 51200 |
| InitializedDataSize: | 127488 |
| CodeSize: | 40448 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 0000:00:00 00:00:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 01-Jan-1970 00:00:00 |
| TLS Callbacks: | 2 callback(s) detected. |
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: | 8 |
| Time date stamp: | 01-Jan-1970 00:00:00 |
| 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 | 0x00001000 | 0x00009DA4 | 0x00009E00 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.13306 |
.data | 0x0000B000 | 0x00000034 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.584487 |
.rdata | 0x0000C000 | 0x00004F68 | 0x00005000 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.01236 |
.bss | 0x00011000 | 0x0000C608 | 0x00000000 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x0001E000 | 0x00000C1C | 0x00000E00 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.7815 |
.CRT | 0x0001F000 | 0x00000034 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.271114 |
.tls | 0x00020000 | 0x00000020 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.175526 |
.rsrc | 0x00021000 | 0x0000EEC8 | 0x0000F000 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.51696 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 6.15653 | 3752 | UNKNOWN | UNKNOWN | RT_ICON |
2 | 6.44895 | 2216 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 5.77742 | 1384 | UNKNOWN | UNKNOWN | RT_ICON |
4 | 7.95095 | 38188 | UNKNOWN | UNKNOWN | RT_ICON |
5 | 6.0521 | 9640 | UNKNOWN | UNKNOWN | RT_ICON |
6 | 6.15081 | 4264 | UNKNOWN | UNKNOWN | RT_ICON |
7 | 6.39466 | 1128 | UNKNOWN | UNKNOWN | RT_ICON |
101 | 2.71858 | 104 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
KERNEL32.dll |
USER32.dll |
WS2_32.dll |
msvcrt.dll |
Total processes
31
Monitored processes
2
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 828 | "C:\Users\admin\AppData\Local\Temp\explorer.exe" | C:\Users\admin\AppData\Local\Temp\explorer.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM | ||||
| 2764 | "C:\Users\admin\AppData\Local\Temp\explorer.exe" | C:\Users\admin\AppData\Local\Temp\explorer.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM | ||||
Total events
24
Read events
16
Write events
8
Delete events
0
Modification events
| (PID) Process: | (2764) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings |
| Operation: | write | Name: | ProxyEnable |
Value: 0 | |||
| (PID) Process: | (2764) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections |
| Operation: | write | Name: | SavedLegacySettings |
Value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| |||
| (PID) Process: | (2764) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2764) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
Executable files
13
Suspicious files
1
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\Crypto.Cipher._AES.pyd | executable | |
MD5:3C4AB2E06FEB6E4CA1B7A1244055671A | SHA256:C7E4194470A677304FAD05C771654E6986C32BC29A04C3C4C52594172D83CB23 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\PowEr.exe.manifest | xml | |
MD5:20B80D0D515F1065A140E700CAC2247A | SHA256:D679C229B36976A0EC75913418CFAAD3C902A480CF9E78D0EAB41306A46B54D1 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\base_library.zip | compressed | |
MD5:970206D673F594E05030A2B817DDE743 | SHA256:E6D3C07CC9BDBF92E68A2AAC0F716E08ACAFCC3FD2DF10BCA342BEB3D4410073 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\Crypto.Cipher._DES.pyd | executable | |
MD5:F44EC591110D1ED9967D3788F6050AE8 | SHA256:EFB0DDB1965FB7F046C14DB33DF34706537DE16B58763239C7FB73B77B46AE92 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\python34.dll | executable | |
MD5:F281DEA56E47E9612CDCA33D0C2E6AB0 | SHA256:CE559F72BF1FC7B72F3DB4B814320D3902F607098C06141901277A07976B59F7 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\_hashlib.pyd | executable | |
MD5:82AE4E8208D58BFFC95F68C2C1D8F280 | SHA256:2C905F0809749F5494B2A638A8551AF3D914A148D282FC3DA9D68CE12D067EB9 | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\_socket.pyd | executable | |
MD5:EBC931925D333427E182EB58EB4CECCE | SHA256:E29CC2340A9577F82C45ABE6707E2817575EE02AC374F4864885410D411E6BEA | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\pyexpat.pyd | executable | |
MD5:B67B56F9D69DB0E8EDA23376DB188BE2 | SHA256:5906394063DF3355F8808ADEAE7786149E29C61ABFF031E7685FE3D62733CFDA | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\_ctypes.pyd | executable | |
MD5:5D1BC1BE2F02B4A2890E921AF15190D2 | SHA256:97C3CDEF6D28AD19C0DACFF15DD66F874FE73C8767D88F3BC7C0BDE794D857DA | |||
| 828 | explorer.exe | C:\Users\admin\AppData\Local\Temp\_MEI8282\_bz2.pyd | executable | |
MD5:FB47D434EDB65E28D9A05381F646DC01 | SHA256:2E0CDAB46BF899F8A433D57643D909C3883F95E32CA37817BF4F9E72D84A5A5F | |||
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
0
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2764 | explorer.exe | GET | 200 | 185.25.50.168:4444 | http://185.25.50.168:4444/cx | LT | — | — | malicious |
2764 | explorer.exe | GET | 200 | 185.25.50.168:4444 | http://185.25.50.168:4444/Nd9q | LT | binary | 205 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 |
|---|---|---|---|---|---|---|
2764 | explorer.exe | 185.25.50.168:4444 | — | Informacines sistemos ir technologijos, UAB | LT | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
2764 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
1 ETPRO signatures available at the full report