f423211a5d832e9f59cb5a296057e58bc65b6a609e1ae9da4d9e96ad79294852

General

Target

2222.exe
Size

3.3MB
MD5

5ac82ec1c5c3c179db55f6e283325f7f
SHA1

4b209d3f027d72ce9c4f5e58fea8e6985506df32
SHA256

f423211a5d832e9f59cb5a296057e58bc65b6a609e1ae9da4d9e96ad79294852
SHA512

5cfd3dd56b713bfb3fd9c171a63449727ee1c5333082dd70275dd656d9b02177f5bb9285733cede6c5804a3e6aec4cf119f03bf6608bf917bfe6269cea705c93

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

uuci.exe

pid process

5020 uuci.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:

cmd.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
5020	uuci.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	cmd.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

Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\Local Settings cmd.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4024 WINWORD.EXE
4024 WINWORD.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

2222.exe

pid process

2912 2222.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

4024 WINWORD.EXE
4024 WINWORD.EXE
4024 WINWORD.EXE
4024 WINWORD.EXE
4024 WINWORD.EXE
4024 WINWORD.EXE
4024 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\Local Settings	cmd.exe

pid	process
4024	WINWORD.EXE
4024	WINWORD.EXE

pid	process
2912	2222.exe

pid	process
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE
4024	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2222.execmd.exe

description	pid	process	target process
PID 2912 wrote to memory of 3676	2912	2222.exe	cmd.exe
PID 2912 wrote to memory of 3676	2912	2222.exe	cmd.exe
PID 2912 wrote to memory of 3676	2912	2222.exe	cmd.exe
PID 2912 wrote to memory of 5020	2912	2222.exe	uuci.exe
PID 2912 wrote to memory of 5020	2912	2222.exe	uuci.exe
PID 2912 wrote to memory of 5020	2912	2222.exe	uuci.exe
PID 3676 wrote to memory of 4024	3676	cmd.exe	WINWORD.EXE
PID 3676 wrote to memory of 4024	3676	cmd.exe	WINWORD.EXE

C:\Users\Admin\AppData\Local\Temp\2222.exe
"C:\Users\Admin\AppData\Local\Temp\2222.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\SysWOW64\cmd.exe
cmd " /c " C:\Users\Admin\AppData\Local\Temp\统计表_20220515-20220615.docx
2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3676

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\统计表_20220515-20220615.docx" /o ""
3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4024

C:\Users\Public\uuci.exe
C:\Users\Public\uuci.exe
2⤵
- Executes dropped EXE
PID:5020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\统计表_20220515-20220615.docx
Filesize
11KB

MD5
09d6efb75065bb550000adb3409439ce

SHA1
ebe721a26bb784be1848d6355fc701ee2e30841b

SHA256
0ac174848b69d7cd2adec31b696e27a79399ac0900f6e44895f17aee5bbcced0

SHA512
02ca1c535af1a0f2b7c069c07b4bed4783083c440cba4255f5978caee089f552a9ac673449d58cddcaae0518da7d86531c8712f539a63721ec56ee189eee7037

Download Submit
C:\Users\Public\uuci.exe
Filesize
1.3MB

MD5
f2014c6a460cc7a2afa4a8271e4ce969

SHA1
bd656757a441b2bdd5ae3c116ea8682e72550f17

SHA256
996f4c6c86c45bf1fd91d50f8b642c072b9e6c7e0f2166703572e7466b2c4f01

SHA512
22b6b41e78d930af6dad093c1c596ba4a648eece8932332a4ce0fe0e43c4112b0c3993d79b7de14032796c1e5b626460500ec25739c7ddf695ccdc8b3404b7fe

Download Submit
C:\Users\Public\uuci.exe
Filesize
1.3MB

MD5
f2014c6a460cc7a2afa4a8271e4ce969

SHA1
bd656757a441b2bdd5ae3c116ea8682e72550f17

SHA256
996f4c6c86c45bf1fd91d50f8b642c072b9e6c7e0f2166703572e7466b2c4f01

SHA512
22b6b41e78d930af6dad093c1c596ba4a648eece8932332a4ce0fe0e43c4112b0c3993d79b7de14032796c1e5b626460500ec25739c7ddf695ccdc8b3404b7fe

Download Submit
memory/3676-130-0x0000000000000000-mapping.dmp

Download
memory/4024-138-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-135-0x0000000000000000-mapping.dmp

Download
memory/4024-136-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-137-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-139-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-140-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-141-0x00007FF87EC50000-0x00007FF87EC60000-memory.dmp

Filesize
64KB

Download
memory/4024-142-0x00007FF87EC50000-0x00007FF87EC60000-memory.dmp

Filesize
64KB

Download
memory/4024-144-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-145-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-146-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/4024-147-0x00007FF8815B0000-0x00007FF8815C0000-memory.dmp

Filesize
64KB

Download
memory/5020-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads