e2a4320528f9332872848340b5d6a5cffadca8596567e245eb5a401c8ef918b6

General

Target

intelligence 12.20.doc
Size

80KB
MD5

2eac8507ab396c2e9476ae91a2bf92af
SHA1

fbbf0822676e29969047b1e0d0ba85704183445e
SHA256

e2a4320528f9332872848340b5d6a5cffadca8596567e245eb5a401c8ef918b6
SHA512

baa5d0d27031999ee4c8f4f8424807f2f9e1645a2ee455bfe31a559b9821ad519f942ada5225b54a459bdc6422837065ae88a41caa907a7865d8891624cdcbfe

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description pid pid_target process target process

Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2728 4044 rundll32.exe
Blocklisted process makes network request 7 IoCs

Processes:

mshta.exerundll32.exe

flow pid process

12 200 mshta.exe
27 1520 rundll32.exe
29 1520 rundll32.exe
31 1520 rundll32.exe
33 1520 rundll32.exe
39 1520 rundll32.exe
40 1520 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1520 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\plugin.ini rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2728	4044	rundll32.exe

flow	pid	process
12	200	mshta.exe
27	1520	rundll32.exe
29	1520	rundll32.exe
31	1520	rundll32.exe
33	1520	rundll32.exe
39	1520	rundll32.exe
40	1520	rundll32.exe

pid	process
1520	rundll32.exe

description	ioc	process
File created	C:\Windows\SysWOW64\plugin.ini	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	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

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	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

Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

652 WINWORD.EXE
652 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1520 rundll32.exe
1520 rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	rundll32.exe

pid	process
1520	rundll32.exe
1520	rundll32.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE
652	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exemshta.exe

description	pid	process	target process
PID 2728 wrote to memory of 200	2728	rundll32.exe	mshta.exe
PID 2728 wrote to memory of 200	2728	rundll32.exe	mshta.exe
PID 2728 wrote to memory of 200	2728	rundll32.exe	mshta.exe
PID 200 wrote to memory of 1520	200	mshta.exe	rundll32.exe
PID 200 wrote to memory of 1520	200	mshta.exe	rundll32.exe
PID 200 wrote to memory of 1520	200	mshta.exe	rundll32.exe

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\intelligence 12.20.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:652

C:\Windows\system32\rundll32.exe
rundll32.exe url.dll,OpenURL c:\users\public\index.hta
1⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2728

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\index.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:200

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" c:\programdata\aEUo7.pdf,ShowDialogA -r
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:1520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\users\public\index.hta
MD5
1a3f1ff5f6815debe76570808d97dbfb

SHA1
918ff79b132e91b4653c3fd2c02ce4a478a8a584

SHA256
c454f855e42ed6e19c84dd20f22fc1d3e7494546327d0f61fed28bf3c386df5d

SHA512
e63902aabc1b2038c526d6b6bfbc8a0ed76dbe51e4afb11cb257c2c21785f10cea76c314d647f0f22b0c8bd3fe470bc59004c1829ed4270aa9e78c9c9481a349

Download Submit
\??\c:\programdata\aEUo7.pdf
MD5
ab6eef9a6b391ccca4cfdba31977cc61

SHA1
a50344df0c8256b87e93fbaa48687779e7b78402

SHA256
60fa2c11a5bc3c96ad08c39f6b13e7fe3ed3fe4b39cf3b2546516d4b1dd66e73

SHA512
527bda6d7fa8cec0e373e61c444042f068e86ae0f03e551b180a316b496138a0d65b72cdd20ee8f604652ec5769f145fc751d6dcffa0b3399c3a00d5d29acad5

Download Submit
\ProgramData\aEUo7.pdf
MD5
ab6eef9a6b391ccca4cfdba31977cc61

SHA1
a50344df0c8256b87e93fbaa48687779e7b78402

SHA256
60fa2c11a5bc3c96ad08c39f6b13e7fe3ed3fe4b39cf3b2546516d4b1dd66e73

SHA512
527bda6d7fa8cec0e373e61c444042f068e86ae0f03e551b180a316b496138a0d65b72cdd20ee8f604652ec5769f145fc751d6dcffa0b3399c3a00d5d29acad5

Download Submit
memory/200-4-0x0000000000000000-mapping.dmp

Download
memory/652-2-0x00007FF84DC00000-0x00007FF84E237000-memory.dmp

Filesize
6.2MB

Download
memory/1520-5-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads