0a19498bce5c91710ef60becb98aa026a8a57ced6926b6beac107186ebe3d05b

General

Target

0a19498bce5c91710ef60becb98aa026a8a57ced6926b6beac107186ebe3d05b.xls
Size

70KB
MD5

1cc5c85e99d6b8e4f1575bc313373b74
SHA1

1e83217834b1164dadf203cdf47d74024ca3d1d7
SHA256

0a19498bce5c91710ef60becb98aa026a8a57ced6926b6beac107186ebe3d05b
SHA512

6dc913d292994f7c8ca3a90b01708a8955b8a81b21bcde54e06e9bf3ab8c21b40bbb22b392e8531596504e0c85eeddacb63b9fbda8f7376df844ee710890750e
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+4+hDcnTLiQrRTZws8E1:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMf

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://natayakim.com/_hlam/Ob78p6SxMNonofG/

xlm40.dropper

http://weplug.com/dom/LfdeV8H4Zy1yLFRV/

xlm40.dropper

http://martinmichalek.com/_sub/G1QKwEYPbt/

Signatures

Process spawned unexpected child process 3 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	4052	4924	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2824	4924	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4792	4924	regsvr32.exe	82

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4924	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4924	EXCEL.EXE
4924	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE
4924	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4052	4924	EXCEL.EXE	87
PID 4924 wrote to memory of 4052	4924	EXCEL.EXE	87
PID 4924 wrote to memory of 2824	4924	EXCEL.EXE	88
PID 4924 wrote to memory of 2824	4924	EXCEL.EXE	88
PID 4924 wrote to memory of 4792	4924	EXCEL.EXE	89
PID 4924 wrote to memory of 4792	4924	EXCEL.EXE	89

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\0a19498bce5c91710ef60becb98aa026a8a57ced6926b6beac107186ebe3d05b.xls"
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:4924
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4052
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2824
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4792

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

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
09031304a34f351d879ce4c1888b2d68

SHA1
9bae0e16837988f2c0d8a7d8f01bcca1137e2557

SHA256
b7a17e02c00ed1361b3f3934b15c824e15e2a398363c4643732e82d6f2729c77

SHA512
b1044363c5b9ff845e8a2a66d0786b8cc9404329db4fb0465f75ea34946219fdb7ed872b3bfc6f65c23228f48a0baec3149934ef284bd26cc40e61cf75a1d4eb

Download Submit
memory/4924-13-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-8-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-15-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-4-0x00007FFDEEDB0000-0x00007FFDEEDC0000-memory.dmp

Filesize
64KB

Download
memory/4924-17-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-7-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-10-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-16-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-11-0x00007FFDECD50000-0x00007FFDECD60000-memory.dmp

Filesize
64KB

Download
memory/4924-5-0x00007FFDEEDB0000-0x00007FFDEEDC0000-memory.dmp

Filesize
64KB

Download
memory/4924-9-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-0-0x00007FFDEEDB0000-0x00007FFDEEDC0000-memory.dmp

Filesize
64KB

Download
memory/4924-2-0x00007FFDEEDB0000-0x00007FFDEEDC0000-memory.dmp

Filesize
64KB

Download
memory/4924-3-0x00007FFDEEDB0000-0x00007FFDEEDC0000-memory.dmp

Filesize
64KB

Download
memory/4924-6-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-21-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-20-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-19-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-18-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-14-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-12-0x00007FFDECD50000-0x00007FFDECD60000-memory.dmp

Filesize
64KB

Download
memory/4924-37-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-38-0x00007FFE2EDCD000-0x00007FFE2EDCE000-memory.dmp

Filesize
4KB

Download
memory/4924-42-0x00007FFE2ED30000-0x00007FFE2EF25000-memory.dmp

Filesize
2.0MB

Download
memory/4924-1-0x00007FFE2EDCD000-0x00007FFE2EDCE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads