2243ada22b4c83d5f5470d40be8a9a88035c7264ad4404dad0776975a93da710

General

Target

?i=1kvsdoylj.xlsm
Size

83KB
MD5

3e7a72a5cf394ca9b6bddfca2793c259
SHA1

3cd1eacdff52eaf83b4cdc3c4656019a5c5f288f
SHA256

2243ada22b4c83d5f5470d40be8a9a88035c7264ad4404dad0776975a93da710
SHA512

fbfa181b3dbfbcdf07382852063602271e10bc9abb480046640c02908faa8564eaac6cf9c90e82883e5f3c7baf564f5ad936db8f2fe73bbfd71ccd0e7ab80e05

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

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

Signatures

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	4708	1780	rundll32.exe	78

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 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

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

pid	Process
1780	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE
1780	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 4708	1780	EXCEL.EXE	83
PID 1780 wrote to memory of 4708	1780	EXCEL.EXE	83
PID 1780 wrote to memory of 4708	1780	EXCEL.EXE	83

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\_i=1kvsdoylj.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  PID:4708

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

C:\Users\Admin\erum.ocx

Filesize
7KB

MD5
e91cd7bacfb3abed6802b39c80476127

SHA1
58456194aa421276903f56697d0dcb726b382846

SHA256
884b9474ac5ad85e41082628689579115648baf259f222b4c362afb99d1a0fb1

SHA512
392076e05470eb90c76fc16067279e4a426790de24785889393abfd53f19cd06340ef5e03edae1e98e0be220223c9da4f415ae3a7bc5aa085be837ef975bdfc9

Download Submit
memory/1780-130-0x00007FF8D96F0000-0x00007FF8D9700000-memory.dmp

Filesize
64KB

Download
memory/1780-131-0x00007FF8D96F0000-0x00007FF8D9700000-memory.dmp

Filesize
64KB

Download
memory/1780-132-0x00007FF8D96F0000-0x00007FF8D9700000-memory.dmp

Filesize
64KB

Download
memory/1780-133-0x00007FF8D96F0000-0x00007FF8D9700000-memory.dmp

Filesize
64KB

Download
memory/1780-134-0x00007FF8D96F0000-0x00007FF8D9700000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads