767c5dd7a76d11f71aa86776ccd2c80439276185c823bbcfd828262a26524a1f

Analysis

max time kernel
150s
max time network
140s
platform
windows10_x64
resource
win10v200430
submitted
13/07/2020, 20:00

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General

Target
SecuriteInfo.com.DOC.Kryptik.Q.8385.xls
Size 313KB
Sample200713-bjymg6fqys
SHA256 767c5dd7a76d11f71aa86776ccd2c80439276185c823bbcfd828262a26524a1f
MD5 fa97adbc7a98b0a3f47b72f9009feee9
SHA1 559ab55a314bc8d346c3799b60e6ce800bf08a78
SHA512 a249774fca2093bf1018b67704b7150b790694861914c8bf94adac73a51d3109290bc7ba7d9dafc11129136fece5afe1adb3934819ae16b1cddff86e02c1eba6
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2764	2564	EXCEL.EXE	72
PID 2564 wrote to memory of 2764	2564	EXCEL.EXE	72

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE
2564	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2564	EXCEL.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2764	2564	rundll32.exe	65

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.DOC.Kryptik.Q.8385.xls"
1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
PID:2564
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:2764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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