c4ac17e3754d519d5f39488fa0e237b945013d325ae0fd9168f18432930041bc

General

Target

c4ac17e3754d519d5f39488fa0e237b945013d325ae0fd9168f18432930041bc.xlsm
Size

48KB
MD5

b2f9c2716235094365d8237e3fb6f72a
SHA1

0958ee88c33ce43ebdd41ff90797c20110276e75
SHA256

c4ac17e3754d519d5f39488fa0e237b945013d325ae0fd9168f18432930041bc
SHA512

bbb43bd6c9b8cb0cd691181e409980704279c6793de2861c1f6e797d225b06e43aacc2a9e78405e41d279068ae37ea95a93de548aa19ecbd1249714bbd197d30
SSDEEP

768:E2uCkFF/vxRhR0KDNWBA7rTj+RYV8Q0RuVBR2jPrtysHRX0BAR5:ruTlbMKDNck01u/R2rZyjB+5

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://henrysfreshroast.com/OevI7Yy0i6YShxFl/

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	5012	2796	regsvr32.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.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

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
2796	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2796	EXCEL.EXE
2796	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE
2796	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 5012	2796	EXCEL.EXE	95
PID 2796 wrote to memory of 5012	2796	EXCEL.EXE	95
PID 2796 wrote to memory of 5012	2796	EXCEL.EXE	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\c4ac17e3754d519d5f39488fa0e237b945013d325ae0fd9168f18432930041bc.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\si.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:5012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
21f64415cbf87b4b3702ea29e3f6e037

SHA1
3ad9c4184bba9ef2c539161d9e08bd32d9fa2cd1

SHA256
3ed91b5f46985b5932e2c16961038eafd51cd3a976a783ceb937f1d70591b6f3

SHA512
2374b74aafebde3338f2f59e1325a8905678140d2ba8c3195a79d3833385778d30b6570ba7e98342edb4b04fcbd997cf26ce5dc23db810da88767f75ffe9a1a4

Download Submit
C:\Users\Admin\si.ocx

Filesize
56KB

MD5
d5cbf3235a39c09c9d292dafdf0393a5

SHA1
ae109e202e6f0965b47f38ee29b3725800939a9f

SHA256
208d15c175407bc56c9e1d1a6e31290cf8c04fe1da742e4ad0dbe06960b7f1dd

SHA512
202212aeb1cabe772e05ec7649b83be4a04b68b644a1621993e91e370dc0b9de268ea50f0dab3a74178ecb648d06b5173222d3ed1f0e31d04abeded020b079bd

Download Submit
memory/2796-19-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-7-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-12-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-15-0x00007FFD43870000-0x00007FFD43880000-memory.dmp

Filesize
64KB

Download
memory/2796-14-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-13-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-10-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-20-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-21-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-17-0x00007FFD43870000-0x00007FFD43880000-memory.dmp

Filesize
64KB

Download
memory/2796-11-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-4-0x00007FFD458D0000-0x00007FFD458E0000-memory.dmp

Filesize
64KB

Download
memory/2796-9-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-18-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-16-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-6-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-2-0x00007FFD458D0000-0x00007FFD458E0000-memory.dmp

Filesize
64KB

Download
memory/2796-1-0x00007FFD458D0000-0x00007FFD458E0000-memory.dmp

Filesize
64KB

Download
memory/2796-0-0x00007FFD458D0000-0x00007FFD458E0000-memory.dmp

Filesize
64KB

Download
memory/2796-3-0x00007FFD858ED000-0x00007FFD858EE000-memory.dmp

Filesize
4KB

Download
memory/2796-8-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-43-0x00007FFD85850000-0x00007FFD85A45000-memory.dmp

Filesize
2.0MB

Download
memory/2796-5-0x00007FFD458D0000-0x00007FFD458E0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads