efa77ac16d7ac9c01da1faece2214bb67d0a73c8b31260dd11522e8a77ab24a4

Analysis

max time kernel
127s
max time network
129s
platform
windows10_x64
resource
win10-en-20211208
submitted
15-01-2022 01:41

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General

Target

efa77ac16d7ac9c01da1faece2214bb67d0a73c8b31260dd11522e8a77ab24a4.xlsm
Size

83KB
MD5

8e2cf0d83f51ce1fc97fc0d96022341f
SHA1

0d936f0fbfb8be0c7b10b78c1aae8f135341d194
SHA256

efa77ac16d7ac9c01da1faece2214bb67d0a73c8b31260dd11522e8a77ab24a4
SHA512

0df23689a36aa060f6c116dc611f0e74bebc7fe95ff7c5072d2d4e5e3f030ac1ec31249cefedbcb00f09628a959ee05e5f64a2665681b7c483731d7fd3147c86

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://mail.emilyanncain.com/cgi-bin/A7NT3ENvn/

xlm40.dropper

https://wordpress.baishuweb.com/wp-includes/10q0ice6/

xlm40.dropper

http://monorailegypt.com/wp-admin/6uBf9CCfZRMh/

Signatures

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

2716 EXCEL.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

EXCEL.EXE

pid process

2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE
2716 EXCEL.EXE

pid	process
2716	EXCEL.EXE

pid	process
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.EXE
2716	EXCEL.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\efa77ac16d7ac9c01da1faece2214bb67d0a73c8b31260dd11522e8a77ab24a4.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2716

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2716-115-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2716-116-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2716-117-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2716-118-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2716-119-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/2716-120-0x000001AA240E0000-0x000001AA240E2000-memory.dmp

Filesize
8KB

Download
memory/2716-121-0x000001AA240E0000-0x000001AA240E2000-memory.dmp

Filesize
8KB

Download
memory/2716-122-0x000001AA240E0000-0x000001AA240E2000-memory.dmp

Filesize
8KB

Download