0f762e82649c034434fe38dfd45835ad4e560b377a9a7c23e30578fbaf1b1505

General

Target

trickbot.xls
Size

52KB
MD5

2fa033c8bbdf1bd937125042588cdec9
SHA1

b9a0d6ff9a77fc9b223abe2c560a7e888026e3bb
SHA256

1df473992bd7c161fc1964c5d895f16240b417005fc69d20d3b9013c6c18dee8
SHA512

7eccb690657f33ee7c8e7ae5792441d69a3f4e99df5735cb81cff7d4c0ab44928ad2b84b0386296face223e921d19c5fa3f52e4afc45d7e9e779481a40a8ba95

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1532	504	rundll32.exe	EXCEL.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:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

504 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE
504	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 504 wrote to memory of 1532 504 EXCEL.EXE rundll32.exe
PID 504 wrote to memory of 1532 504 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 504 wrote to memory of 1532	504	EXCEL.EXE	rundll32.exe
PID 504 wrote to memory of 1532	504	EXCEL.EXE	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\trickbot.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:504

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Herti.dosterage,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/504-2-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/504-3-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/504-4-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/504-5-0x00007FF8030A0000-0x00007FF8036D7000-memory.dmp

Filesize
6.2MB

Download
memory/504-6-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/1532-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads