fd28d19ac16d2aed51885674f3b019f8c4996d7cc28bf13f222f1db7c5410e1c

General

Target

fd28d19ac16d2aed51885674f3b019f8c4996d7cc28bf13f222f1db7c5410e1c.xlsm
Size

90KB
MD5

40c1c560733e88455e540c03aa207fec
SHA1

5b979c2740266c726f1b8d9c6b4552cfad6fb828
SHA256

fd28d19ac16d2aed51885674f3b019f8c4996d7cc28bf13f222f1db7c5410e1c
SHA512

157d7c527c43b4ef6d309bc96f556096c7bdabd13e891c3b0975f070dfb48a1c4796f70b7edc6ceada311e8c0f21ba60075822537d1a7863d045395c20b62d60
SSDEEP

1536:zQBrnXpnyV+ns1BVi/IEh2hx0Lx3bKhllGGx0vKCEjdQjqEk+xXPd:aDpyVEoBo6hKb4llGsQjbxfd

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.ajaxmatters.com/c7g8t/zbBYgukXYxzAF2hZc/

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	4396	756	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
756	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
756	EXCEL.EXE
756	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE
756	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 4396	756	EXCEL.EXE	87
PID 756 wrote to memory of 4396	756	EXCEL.EXE	87
PID 756 wrote to memory of 4396	756	EXCEL.EXE	87

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\fd28d19ac16d2aed51885674f3b019f8c4996d7cc28bf13f222f1db7c5410e1c.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:756
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe /s ..\xxw1.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:4396

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
227598f2eb7a43ea8c65494dd47270a3

SHA1
8a08fde493b83c6efa097dd44a31a5f219451118

SHA256
b0c207474924db7351c305249593532ca2e5bf4bd37247e6d1958049f728d3cf

SHA512
b54020539da30c5a984d367a797b1de546bad96fc0503db0a7dda035afcd852c3386330a186b6a096ed97014711009bb96e45ed3afbb010ab8a36d50739d27fe

Download Submit
C:\Users\Admin\xxw1.ocx

Filesize
23KB

MD5
4ed8ca5542b641fddd200acebadf4e3c

SHA1
41fd7fb6cb84805fbc229cbf13620f80a5008003

SHA256
3f03ee986c82c3be72da6272448f92d97426f53e07079334edeb502f6386cc33

SHA512
866719609b7200cdd4d97b6a83d7fb6424d3900b555e23d2db8744539b1ae204c0da0a5e595c676ee4cad7df3f743aad1e746c750cd30afe3a74d89bf188979a

Download Submit
memory/756-5-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-9-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-2-0x00007FFA751D0000-0x00007FFA751E0000-memory.dmp

Filesize
64KB

Download
memory/756-0-0x00007FFA751D0000-0x00007FFA751E0000-memory.dmp

Filesize
64KB

Download
memory/756-6-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-7-0x00007FFA751D0000-0x00007FFA751E0000-memory.dmp

Filesize
64KB

Download
memory/756-10-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-12-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-11-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-3-0x00007FFA751D0000-0x00007FFA751E0000-memory.dmp

Filesize
64KB

Download
memory/756-13-0x00007FFA72C40000-0x00007FFA72C50000-memory.dmp

Filesize
64KB

Download
memory/756-14-0x00007FFA72C40000-0x00007FFA72C50000-memory.dmp

Filesize
64KB

Download
memory/756-8-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-4-0x00007FFA751D0000-0x00007FFA751E0000-memory.dmp

Filesize
64KB

Download
memory/756-38-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-39-0x00007FFAB51ED000-0x00007FFAB51EE000-memory.dmp

Filesize
4KB

Download
memory/756-40-0x00007FFAB5150000-0x00007FFAB5345000-memory.dmp

Filesize
2.0MB

Download
memory/756-1-0x00007FFAB51ED000-0x00007FFAB51EE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads