94be69e8d99af1485037343d4a3bd0aa87a04b780654c9d36606c0dd37a20f56

General

Target

94be69e8d99af1485037343d4a3bd0aa87a04b780654c9d36606c0dd37a20f56.xlsm
Size

30KB
MD5

f0a45501788b20a08008b2466ad4b916
SHA1

b585ed2158e171b411276ef035c3f3d4230e0512
SHA256

94be69e8d99af1485037343d4a3bd0aa87a04b780654c9d36606c0dd37a20f56
SHA512

ae270b383fa3c739a72076866d793d0b56487460d5328a21d77339b5440f419a51fd48fb9e5bdaf38a2d599fa374f2a0672be9a4e1810e1aee358d80ed556950
SSDEEP

384:H842JZPFhNjtOA7icg0SCdiVH2KgUrNU/qWhZOdBNPJM+kqr9eCgh0k5M2E6v:AHFhNZliH2ydFfPdkqstJhE6v

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://henrysfreshroast.com/6cc4ts0bkrOlXq/

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	3528	728	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
728	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
728	EXCEL.EXE
728	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE
728	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 3528	728	EXCEL.EXE	92
PID 728 wrote to memory of 3528	728	EXCEL.EXE	92
PID 728 wrote to memory of 3528	728	EXCEL.EXE	92

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\94be69e8d99af1485037343d4a3bd0aa87a04b780654c9d36606c0dd37a20f56.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:728
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:3528

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
a1dac9b39db65ef201ce6f09791a0f65

SHA1
0e264a1b76e8baefa8602eddb7b04b28ce45bbed

SHA256
8169005c56e6721c96aebc8df93bb48d39b338972c041d0e5651c1d4471b1098

SHA512
55726b4613e06ae52a64173e7e5a83aa935daa33e65e61abc4c11da8d81fea5495e94151669e1a6daadacd49ec381f8463b5818a50be4ea5f84f38aa291337c6

Download Submit
C:\Users\Admin\rfs.dll

Filesize
56KB

MD5
d5cbf3235a39c09c9d292dafdf0393a5

SHA1
ae109e202e6f0965b47f38ee29b3725800939a9f

SHA256
208d15c175407bc56c9e1d1a6e31290cf8c04fe1da742e4ad0dbe06960b7f1dd

SHA512
202212aeb1cabe772e05ec7649b83be4a04b68b644a1621993e91e370dc0b9de268ea50f0dab3a74178ecb648d06b5173222d3ed1f0e31d04abeded020b079bd

Download Submit
memory/728-13-0x00007FF9BEE10000-0x00007FF9BEE20000-memory.dmp

Filesize
64KB

Download
memory/728-16-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-4-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/728-6-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-10-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-11-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-12-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-9-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-1-0x00007FFA00E8D000-0x00007FFA00E8E000-memory.dmp

Filesize
4KB

Download
memory/728-8-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-14-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-2-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/728-15-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-7-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/728-5-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-17-0x00007FF9BEE10000-0x00007FF9BEE20000-memory.dmp

Filesize
64KB

Download
memory/728-34-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-3-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/728-40-0x00007FFA00E8D000-0x00007FFA00E8E000-memory.dmp

Filesize
4KB

Download
memory/728-41-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/728-0-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads