427b1af5ab5a8ecf6d182ea7c1bcf696700ea31358b88ca374fa82b4d0dc619d

General

Target

command.11.30.2020.doc
Size

142KB
MD5

019d3ecf74e5e66bc246f70c69bfa2d0
SHA1

ee7e8ff6e1905eea0a9a35e881978bbf55fbb03f
SHA256

427b1af5ab5a8ecf6d182ea7c1bcf696700ea31358b88ca374fa82b4d0dc619d
SHA512

37a3c711ea942e9f600b96af67abd1b0eb24331c8cdbec14055bd2aec9845e209dc4bff3325211df88f25615f0d7ab5601ed5f70b7323717bed28a5af5a2d03b

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:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4032	3968	rundll32.exe	WINWORD.EXE

Blocklisted process makes network request 5 IoCs

Processes:

rundll32.exe

flow pid process

27 4056 rundll32.exe
29 4056 rundll32.exe
31 4056 rundll32.exe
33 4056 rundll32.exe
34 4056 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4056 rundll32.exe

flow	pid	process
27	4056	rundll32.exe
29	4056	rundll32.exe
31	4056	rundll32.exe
33	4056	rundll32.exe
34	4056	rundll32.exe

pid	process
4056	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 12 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3968 WINWORD.EXE
3968 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

4056 rundll32.exe
4056 rundll32.exe

description	flow	ioc
HTTP User-Agent header	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4056	rundll32.exe
4056	rundll32.exe

Suspicious use of SetWindowsHookEx 18 IoCs

Processes:

WINWORD.EXE

pid	process
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE
3968	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXErundll32.exe

description	pid	process	target process
PID 3968 wrote to memory of 4032	3968	WINWORD.EXE	rundll32.exe
PID 3968 wrote to memory of 4032	3968	WINWORD.EXE	rundll32.exe
PID 4032 wrote to memory of 4056	4032	rundll32.exe	rundll32.exe
PID 4032 wrote to memory of 4056	4032	rundll32.exe	rundll32.exe
PID 4032 wrote to memory of 4056	4032	rundll32.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\command.11.30.2020.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3968

C:\Windows\SYSTEM32\rundll32.exe
rundll32 c:\programdata\rDPRg.pdf,ShowDialogA -r
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4032

C:\Windows\SysWOW64\rundll32.exe
rundll32 c:\programdata\rDPRg.pdf,ShowDialogA -r
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:4056

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\??\c:\programdata\rDPRg.pdf
MD5
ae5457bcea1769c46943b25d392972cc

SHA1
3cf2402aef141fb86a041d12bda1a4132a4d7a42

SHA256
73708b111656b06a0c0d8b313f542bf526a24efda87e1fb738d4753dc34769e0

SHA512
39a042dca7490974b958783d3f27af9ba0db2488426fd6915a8336099001990ff36eebe719680b32968974424e2432382f961a41a9e7960d4e11520fa94e4afb

Download Submit
\ProgramData\rDPRg.pdf
MD5
ae5457bcea1769c46943b25d392972cc

SHA1
3cf2402aef141fb86a041d12bda1a4132a4d7a42

SHA256
73708b111656b06a0c0d8b313f542bf526a24efda87e1fb738d4753dc34769e0

SHA512
39a042dca7490974b958783d3f27af9ba0db2488426fd6915a8336099001990ff36eebe719680b32968974424e2432382f961a41a9e7960d4e11520fa94e4afb

Download Submit
memory/3968-2-0x00007FFCBC0A0000-0x00007FFCBC6D7000-memory.dmp

Filesize
6.2MB

Download
memory/3968-3-0x000001FA296B3000-0x000001FA296B8000-memory.dmp

Filesize
20KB

Download
memory/3968-4-0x000001FA296AE000-0x000001FA296B3000-memory.dmp

Filesize
20KB

Download
memory/3968-5-0x000001FA296B3000-0x000001FA296B8000-memory.dmp

Filesize
20KB

Download
memory/4032-6-0x0000000000000000-mapping.dmp

Download
memory/4056-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads