e0e993e5237760772fa7089f635e39d0f4406dc6ca4eba34d65999ea3bc3c7e3

General

Target

48d20d11a7ceaf25b91a53a78c8e12a6.dll
Size

1.0MB
MD5

48d20d11a7ceaf25b91a53a78c8e12a6
SHA1

656576d892bdf6b0705175813ff614b8e7f01995
SHA256

e0e993e5237760772fa7089f635e39d0f4406dc6ca4eba34d65999ea3bc3c7e3
SHA512

d2011ee2168cfcb1c066b526cf06d1b7647f3f3d610d69ca019003f07d6e40c73d0478571e8b84d2901d5cfea52879a35359460b3624fe5a05b6cb96f889fa38
SSDEEP

24576:jLMosPrXcqPy1A6wBjSxheLE3tkNUdssjFz:jLM5PrVP2ArjSjmct8ts

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3136	396	WerFault.exe	87

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

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

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1204	WINWORD.EXE
1204	WINWORD.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE
1204	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 396	3480	rundll32.exe	87
PID 3480 wrote to memory of 396	3480	rundll32.exe	87
PID 3480 wrote to memory of 396	3480	rundll32.exe	87
PID 396 wrote to memory of 1204	396	rundll32.exe	92
PID 396 wrote to memory of 1204	396	rundll32.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\48d20d11a7ceaf25b91a53a78c8e12a6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\48d20d11a7ceaf25b91a53a78c8e12a6.dll,#1
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:396
- - 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\办公室党支部2020年度工作总结(20200115).docx" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:1204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 1104
    3⤵
    - Program crash
    PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 396 -ip 396
1⤵
PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\办公室党支部2020年度工作总结(20200115).docx

Filesize
378KB

MD5
5a73f073fcc0b6aaf9e11ba6f026f15f

SHA1
5a4aad50203cc1e1cb2be04fcdfe5f059e19b2e6

SHA256
d965cdbea06bbf659254ae7c31f3122fd586716aae1784886bbc3af0e0ce2fd4

SHA512
0ded2a7e9ccf53c8853ac2c9896f9e0c31725484ac6f5ad7edfeef97c0fa1baad7231a0ffee85c9225d30dff8f3960ed24b995e18fe484519002226445f39727

Download Submit
memory/396-4-0x0000000003720000-0x00000000037B3000-memory.dmp

Filesize
588KB

Download
memory/1204-18-0x00007FFA2B6D0000-0x00007FFA2B6E0000-memory.dmp

Filesize
64KB

Download
memory/1204-66-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-10-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-9-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-8-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-11-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-13-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-14-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-15-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-12-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-16-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-17-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-7-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-6-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-62-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-32-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-33-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-34-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-5-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-63-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-64-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-65-0x00007FFA2E030000-0x00007FFA2E040000-memory.dmp

Filesize
64KB

Download
memory/1204-19-0x00007FFA2B6D0000-0x00007FFA2B6E0000-memory.dmp

Filesize
64KB

Download
memory/1204-67-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-68-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download
memory/1204-69-0x00007FFA6DFB0000-0x00007FFA6E1A5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads