dc20e0bcdd7fc623dc93dbafa35c8a8cf1821018155def3aa2612ab2d9bd4788

General

Target

wwlib.dll
Size

72KB
MD5

08dbf918208f44f0d74d096a901358cc
SHA1

0def86a1ad13283fe79f2e3d4f139eadd298d138
SHA256

a64997b94ebfea461c95d445a4d13aa4c4bd49604451208746d95d106b677053
SHA512

84ce422251a18bc0c3989ffd90a37f3aafe21c984fd8727384606f67f9b4f7f490dce1a960ec26b3a080204efd7bcde13b8cef19acec4ff28c534021c5f452b9
SSDEEP

1536:OqZc36GWQ679o77Kl0Evn9JKFkpQ1Ah1:OqZQmz0+l0Ev9FwAh1

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

7 1488 rundll32.exe
27 1488 rundll32.exe

flow	pid	process
7	1488	rundll32.exe
27	1488	rundll32.exe

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

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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

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-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4848 WINWORD.EXE
4848 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE
4848 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	rundll32.exe

pid	process
4848	WINWORD.EXE
4848	WINWORD.EXE

pid	process
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE
4848	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2596 wrote to memory of 1488	2596	rundll32.exe	rundll32.exe
PID 2596 wrote to memory of 1488	2596	rundll32.exe	rundll32.exe
PID 2596 wrote to memory of 1488	2596	rundll32.exe	rundll32.exe
PID 1488 wrote to memory of 4848	1488	rundll32.exe	WINWORD.EXE
PID 1488 wrote to memory of 4848	1488	rundll32.exe	WINWORD.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wwlib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\wwlib.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1488
- - 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\How Catholics Adapt to Changes in China A Missiological Perspective.docx" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:4848

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\How Catholics Adapt to Changes in China A Missiological Perspective.docx

Filesize
39KB

MD5
b9c4cfefa7917160f4f0aa9d33c36eb1

SHA1
01f5b14973d3e29bd091a34df813d4959d2a2893

SHA256
a4bfbccb9b567e077d1998cd081df974ebde88ce8f2c8319353fb404a3293a73

SHA512
0cdca0417af28bac87499e5d104ddc6fc41b998fa5aea34eaa48101c422cbfa4f1507dbee95963e71846b3036f4940160f013f8d29ba8366e02da45f9275dbed

Download Submit
C:\Users\Admin\AppData\Local\Temp\TCDDD3B.tmp\sist02.xsl

Filesize
245KB

MD5
f883b260a8d67082ea895c14bf56dd56

SHA1
7954565c1f243d46ad3b1e2f1baf3281451fc14b

SHA256
ef4835db41a485b56c2ef0ff7094bc2350460573a686182bc45fd6613480e353

SHA512
d95924a499f32d9b4d9a7d298502181f9e9048c21dbe0496fa3c3279b263d6f7d594b859111a99b1a53bd248ee69b867d7b1768c42e1e40934e0b990f0ce051e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/4848-24-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-28-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-12-0x00007FFB9762D000-0x00007FFB9762E000-memory.dmp

Filesize
4KB

Download
memory/4848-15-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-14-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-16-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-18-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-17-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-20-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-21-0x00007FFB55430000-0x00007FFB55440000-memory.dmp

Filesize
64KB

Download
memory/4848-19-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-10-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-27-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-13-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-29-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-26-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-25-0x00007FFB55430000-0x00007FFB55440000-memory.dmp

Filesize
64KB

Download
memory/4848-23-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-22-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-11-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-57-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download
memory/4848-9-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-558-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-559-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-561-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-560-0x00007FFB57610000-0x00007FFB57620000-memory.dmp

Filesize
64KB

Download
memory/4848-562-0x00007FFB97590000-0x00007FFB97785000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads