5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b

General

Target

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
Size

958KB
MD5

510f9e146edd3103ddd4b7da3f6521ee
SHA1

affc015f99525fd0884c06812a54af3557331a5e
SHA256

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b
SHA512

b2e94a1f2f169d0275102072644b6ff8729a74acadfa0328ac7baca6bec198ce119556e8719c015bb205f437fbd4ad9973875f9d5c82dc89f9841303914c6231

Score

9^/10

Malware Config

Signatures

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/2444-144-0x0000000002190000-0x0000000002220000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/2444-144-0x0000000002190000-0x0000000002220000-memory.dmp	WebBrowserPassView

Nirsoft 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2444-144-0x0000000002190000-0x0000000002220000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

Windows Update.exe

pid process

1948 Windows Update.exe

pid	process
1948	Windows Update.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:

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe

description	pid	process	target process
PID 4952 set thread context of 2444	4952	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exeWindows Update.exe

pid process

4952 5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
1948 Windows Update.exe

pid	process
4952	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
1948	Windows Update.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe

description	pid	process	target process
PID 4952 wrote to memory of 2444	4952	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
PID 4952 wrote to memory of 2444	4952	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
PID 4952 wrote to memory of 2444	4952	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
PID 2444 wrote to memory of 1948	2444	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	Windows Update.exe
PID 2444 wrote to memory of 1948	2444	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	Windows Update.exe
PID 2444 wrote to memory of 1948	2444	5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe	Windows Update.exe

C:\Users\Admin\AppData\Local\Temp\5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
"C:\Users\Admin\AppData\Local\Temp\5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4952

C:\Users\Admin\AppData\Local\Temp\5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe
C:\Users\Admin\AppData\Local\Temp\5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2444

C:\Users\Admin\AppData\Roaming\Windows Update.exe
"C:\Users\Admin\AppData\Roaming\Windows Update.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Windows Update.exe
Filesize
958KB

MD5
510f9e146edd3103ddd4b7da3f6521ee

SHA1
affc015f99525fd0884c06812a54af3557331a5e

SHA256
5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b

SHA512
b2e94a1f2f169d0275102072644b6ff8729a74acadfa0328ac7baca6bec198ce119556e8719c015bb205f437fbd4ad9973875f9d5c82dc89f9841303914c6231

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Update.exe
Filesize
958KB

MD5
510f9e146edd3103ddd4b7da3f6521ee

SHA1
affc015f99525fd0884c06812a54af3557331a5e

SHA256
5c4a994d5c837fd1f9acfe9961bbb4bd5f01d4e6e9b6f2d0ff20d812bb38a33b

SHA512
b2e94a1f2f169d0275102072644b6ff8729a74acadfa0328ac7baca6bec198ce119556e8719c015bb205f437fbd4ad9973875f9d5c82dc89f9841303914c6231

Download Submit
memory/1948-148-0x0000000000000000-mapping.dmp

Download
memory/2444-142-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download
memory/2444-138-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2444-141-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download
memory/2444-143-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download
memory/2444-144-0x0000000002190000-0x0000000002220000-memory.dmp

Filesize
576KB

Download
memory/2444-147-0x0000000074C30000-0x00000000751E1000-memory.dmp

Filesize
5.7MB

Download
memory/2444-135-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download
memory/2444-133-0x0000000000000000-mapping.dmp

Download
memory/2444-153-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download
memory/2444-154-0x0000000074C30000-0x00000000751E1000-memory.dmp

Filesize
5.7MB

Download
memory/4952-132-0x00000000006F0000-0x00000000006F7000-memory.dmp

Filesize
28KB

Download
memory/4952-134-0x00000000775C0000-0x0000000077763000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads