Analysis
-
max time kernel
139s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
14-03-2023 12:56
Behavioral task
behavioral1
Sample
DOC_867991348.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
DOC_867991348.doc
Resource
win10v2004-20230220-en
General
-
Target
DOC_867991348.doc
-
Size
522.4MB
-
MD5
6abed631921d3eafd17c85ae7eb41bc1
-
SHA1
2fc878888ca81cf16cf37dd7337c8fee53df00f8
-
SHA256
d6245767403d271e6eff94cbab75f3262836d54e2b177f742f9f86d91891b497
-
SHA512
243db059b98351859f81b39cebac10c2499a2b3f529fc2f9ec8f1b7f85cfb5fa871697246b94247ba00383ea11226f4ce717416dab40cac101caf30ba506ce32
-
SSDEEP
6144:5yk1RgZZXbN63GW1Z7krKSUzMNYJJdKkOl950uH54Lg4Ne9C:5/MXJ6WW1Z7ktUgNYJJdKkOHC4D409
Malware Config
Extracted
emotet
Epoch5
103.85.95.4:8080
103.224.241.74:8080
178.238.225.252:8080
37.59.103.148:8080
78.47.204.80:443
138.197.14.67:8080
128.199.242.164:8080
54.37.228.122:443
37.44.244.177:8080
139.59.80.108:8080
218.38.121.17:443
82.98.180.154:7080
114.79.130.68:443
159.65.135.222:7080
174.138.33.49:7080
195.77.239.39:8080
193.194.92.175:443
198.199.70.22:8080
85.214.67.203:8080
93.84.115.205:7080
186.250.48.5:443
46.101.98.60:8080
160.16.143.191:8080
64.227.55.231:8080
175.126.176.79:8080
85.25.120.45:8080
178.62.112.199:8080
185.148.169.10:8080
128.199.217.206:443
103.41.204.169:8080
209.239.112.82:8080
202.28.34.99:8080
139.196.72.155:8080
87.106.97.83:7080
93.104.209.107:8080
104.244.79.94:443
115.178.55.22:80
83.229.80.93:8080
103.254.12.236:7080
62.171.178.147:8080
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 4464 4460 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4464 regsvr32.exe 2388 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AXKrGtstuUM.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\CuhmQzVkPGfkHbOS\\AXKrGtstuUM.dll\"" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 42 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 4460 WINWORD.EXE 4460 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 4464 regsvr32.exe 4464 regsvr32.exe 2388 regsvr32.exe 2388 regsvr32.exe 2388 regsvr32.exe 2388 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
WINWORD.EXEpid process 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE 4460 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 4460 wrote to memory of 4464 4460 WINWORD.EXE regsvr32.exe PID 4460 wrote to memory of 4464 4460 WINWORD.EXE regsvr32.exe PID 4464 wrote to memory of 2388 4464 regsvr32.exe regsvr32.exe PID 4464 wrote to memory of 2388 4464 regsvr32.exe regsvr32.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\DOC_867991348.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\135723.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\CuhmQzVkPGfkHbOS\AXKrGtstuUM.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\135723.tmpFilesize
527.5MB
MD56ea930620e66f8cb84e1774d0a6c0b2d
SHA1748404bba874a143cdce8af9422fda733993dc89
SHA256bd55dcc2e45d2274f6575f862f7fb7f52a898e44b4910cdbb4bd71a44620b44a
SHA5126c62986b29171f4d5b1616e103c711d51120677e796a90eed83a5823835f63bf7aa4d4260f92597856b39d8afd39a8ff7be941ca9b1e2750529d4c1f405a2c18
-
C:\Users\Admin\AppData\Local\Temp\135723.tmpFilesize
527.5MB
MD56ea930620e66f8cb84e1774d0a6c0b2d
SHA1748404bba874a143cdce8af9422fda733993dc89
SHA256bd55dcc2e45d2274f6575f862f7fb7f52a898e44b4910cdbb4bd71a44620b44a
SHA5126c62986b29171f4d5b1616e103c711d51120677e796a90eed83a5823835f63bf7aa4d4260f92597856b39d8afd39a8ff7be941ca9b1e2750529d4c1f405a2c18
-
C:\Users\Admin\AppData\Local\Temp\135724.zipFilesize
834KB
MD5470c7b86d24d4f0c70eb94d2ebfc35e1
SHA1c74cec8cf99371810c8a7b2bf53088dbf3df6404
SHA256498c4a7c1c1ad66267c35639ed643dfd17922febec4360fcaf5459c06359093f
SHA5123c62e2c9b56d0083fc8e188c5c57cb62c3167a842c99fc6ccf9e0ee2b4b723dbd7d475875086e10504fad538ace384e1d0600f9bc71e06b2839619d3562d1f14
-
C:\Windows\System32\CuhmQzVkPGfkHbOS\AXKrGtstuUM.dllFilesize
527.5MB
MD56ea930620e66f8cb84e1774d0a6c0b2d
SHA1748404bba874a143cdce8af9422fda733993dc89
SHA256bd55dcc2e45d2274f6575f862f7fb7f52a898e44b4910cdbb4bd71a44620b44a
SHA5126c62986b29171f4d5b1616e103c711d51120677e796a90eed83a5823835f63bf7aa4d4260f92597856b39d8afd39a8ff7be941ca9b1e2750529d4c1f405a2c18
-
memory/4460-134-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-138-0x00007FF90C150000-0x00007FF90C160000-memory.dmpFilesize
64KB
-
memory/4460-139-0x00007FF90C150000-0x00007FF90C160000-memory.dmpFilesize
64KB
-
memory/4460-136-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-135-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-137-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-133-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-206-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-207-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-208-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4460-209-0x00007FF90E8D0000-0x00007FF90E8E0000-memory.dmpFilesize
64KB
-
memory/4464-177-0x0000000002BE0000-0x0000000002C0C000-memory.dmpFilesize
176KB
-
memory/4464-180-0x00000000013E0000-0x00000000013E1000-memory.dmpFilesize
4KB