5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1

Analysis

max time kernel
198s
max time network
227s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 17:10

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General

Target

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
Size

587KB
MD5

5c7e83e61cef93b99024fcbfa6e25bd0
SHA1

26da3a4c3b3921c794092a4a414c48c1c58dbce4
SHA256

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1
SHA512

167b24e9c1e0243f3f682a591535199b87bba8cf5ef33f57d77c911ac08bbb7eefa66e11935953acad35c0a28099865decbca90689601506fdd2bad7052aba29
SSDEEP

12288:d5h3PhAT+T3YJZ7djjyoGt87OcaXp9TQd49K:d3PGa3YJv36EaXp9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Tcv.exe

pid process

3128 Tcv.exe

pid	process
3128	Tcv.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:

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

Drops file in System32 directory 4 IoCs

Processes:

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Discv.dll	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
File created	C:\Windows\SysWOW64\Discv.dll	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
File opened for modification	C:\Windows\SysWOW64\Lcv_sys.exe	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
File created	C:\Windows\SysWOW64\Lcv_sys.exe	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

Drops file in Windows directory 3 IoCs

Processes:

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exeTcv.exe

description	ioc	process
File created	C:\Windows\winstart.bat	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
File opened for modification	C:\Windows\winstart.bat	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
File created	C:\Windows\winstart.bat	Tcv.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe

description	pid	process	target process
PID 4188 wrote to memory of 3128	4188	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe	Tcv.exe
PID 4188 wrote to memory of 3128	4188	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe	Tcv.exe
PID 4188 wrote to memory of 3128	4188	5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe	Tcv.exe

C:\Users\Admin\AppData\Local\Temp\5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe
"C:\Users\Admin\AppData\Local\Temp\5ad7f277f607ba27c002dff2cd5cd4579f15c4fafb1f2fc1dac18701540610f1.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4188

C:\Windows\TEMP\Tcv.exe
"C:\Windows\TEMP\Tcv.exe"
2⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3128

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\TEMP\Tcv.exe

Filesize
588KB

MD5
5870af1b10a92178dca16451248f31b3

SHA1
1a989ada98902091d4bbb62f4085d59ab8d34a1d

SHA256
18d93b0326a493984b3f76ef6f8699755b087e76885a863041dc051c8131d6b5

SHA512
b3b105dc4193202f2912f17afa21c8bb08751cc3c026e6fd330330a30bca2742ffb3df7388554c8a211d3de25284227c8fe8c85b1bd4ea6c36433c3376b23a2c

Download Submit
C:\Windows\Temp\Tcv.exe

Filesize
588KB

MD5
5870af1b10a92178dca16451248f31b3

SHA1
1a989ada98902091d4bbb62f4085d59ab8d34a1d

SHA256
18d93b0326a493984b3f76ef6f8699755b087e76885a863041dc051c8131d6b5

SHA512
b3b105dc4193202f2912f17afa21c8bb08751cc3c026e6fd330330a30bca2742ffb3df7388554c8a211d3de25284227c8fe8c85b1bd4ea6c36433c3376b23a2c

Download Submit
memory/3128-132-0x0000000000000000-mapping.dmp

Download