d45aea2c8a2edccf518b2689d97ceba1b0ae3e7d504be578be6880466f63e10a

General

Target

d45aea2c8a2edccf518b2689d97ceba1b0ae3e7d504be578be6880466f63e10a.xlsm
Size

30KB
MD5

237758f934238fea9abb35fa226a9161
SHA1

426a7e888a7abb775843cd2b2fd203a2426efd29
SHA256

d45aea2c8a2edccf518b2689d97ceba1b0ae3e7d504be578be6880466f63e10a
SHA512

968e88dd80cbf2c2092eeaccb56c85b89275c13f226cbb21e94d4fd4d51f698c584819b948141c0a8e91700c48a39f55b39c91cb2c308c245331acb8eb173f06
SSDEEP

384:7842JZPFhNjtOA7icg0SCdiVH2KgUrNU/qWhZOdBNPJM+kqr9eCgh0k5M2E6v:sHFhNZliH2ydFfPdkqstJhE6v

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	3368	1920	regsvr32.exe	83

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
1920	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1920	EXCEL.EXE
1920	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE
1920	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 3368	1920	EXCEL.EXE	93
PID 1920 wrote to memory of 3368	1920	EXCEL.EXE	93
PID 1920 wrote to memory of 3368	1920	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\d45aea2c8a2edccf518b2689d97ceba1b0ae3e7d504be578be6880466f63e10a.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:1920
- 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:3368

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
9e81e0c19e758a91235bc68f9bd6668e

SHA1
e1c67cca49de82620e845f7c53d9698254ea6e25

SHA256
e60dcbb4d96badbd8d6e841b9fded7ab418f06dad35de45697e3f211a0cc92d2

SHA512
3c44532582b99d4f166ad8cb8adfa833cf90f206f98804ba402661b5151bcbd8238e847741f4217709740caf001fb9b632722dd53336c30c4e133ccfc6119fba

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

Filesize
56KB

MD5
d5cbf3235a39c09c9d292dafdf0393a5

SHA1
ae109e202e6f0965b47f38ee29b3725800939a9f

SHA256
208d15c175407bc56c9e1d1a6e31290cf8c04fe1da742e4ad0dbe06960b7f1dd

SHA512
202212aeb1cabe772e05ec7649b83be4a04b68b644a1621993e91e370dc0b9de268ea50f0dab3a74178ecb648d06b5173222d3ed1f0e31d04abeded020b079bd

Download Submit
memory/1920-11-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-43-0x00007FFECEC6D000-0x00007FFECEC6E000-memory.dmp

Filesize
4KB

Download
memory/1920-5-0x00007FFE8EC50000-0x00007FFE8EC60000-memory.dmp

Filesize
64KB

Download
memory/1920-7-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-6-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-8-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-2-0x00007FFE8EC50000-0x00007FFE8EC60000-memory.dmp

Filesize
64KB

Download
memory/1920-9-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-10-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-12-0x00007FFE8C2F0000-0x00007FFE8C300000-memory.dmp

Filesize
64KB

Download
memory/1920-0-0x00007FFE8EC50000-0x00007FFE8EC60000-memory.dmp

Filesize
64KB

Download
memory/1920-13-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-4-0x00007FFE8EC50000-0x00007FFE8EC60000-memory.dmp

Filesize
64KB

Download
memory/1920-16-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-15-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-14-0x00007FFE8C2F0000-0x00007FFE8C300000-memory.dmp

Filesize
64KB

Download
memory/1920-19-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-20-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-18-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-3-0x00007FFE8EC50000-0x00007FFE8EC60000-memory.dmp

Filesize
64KB

Download
memory/1920-42-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-17-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-44-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-45-0x00007FFECEBD0000-0x00007FFECEDC5000-memory.dmp

Filesize
2.0MB

Download
memory/1920-1-0x00007FFECEC6D000-0x00007FFECEC6E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads