18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8

General

Target

18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8.xls
Size

95KB
MD5

bbaafdac247e6552e7784ef812d7df72
SHA1

2431d65c7340e39df1f2af32db3e179cd701967a
SHA256

18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8
SHA512

36f5baea0c88998282045d7ab0e7578840d533d8f26b82d051575358d0a36fb1794077a89a1dc14ad3fe4cd56a047f873802520eea7ab139030da64f74e482d0
SSDEEP

1536:gFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg0yHuS4hcTO97v7UYdEJmAb:GKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgD

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://f5ajans.com/merthel/vvWRK/KVVGB6o7SPoorfaI/

xlm40.dropper

http://emett.com/images/kk2l4zoRKwv2vIEK/

xlm40.dropper

https://www.duinrand-s.nl/Nieuws/S9Y8DumfrBU1r5unO/

xlm40.dropper

http://galileuconcursos.com.br/wp-admin/Pt8VGg/

Signatures

Process spawned unexpected child process 4 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	2148	1456	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	468	1456	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1808	1456	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1168	1456	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
1456	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1456	EXCEL.EXE
1456	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 2148	1456	EXCEL.EXE	87
PID 1456 wrote to memory of 2148	1456	EXCEL.EXE	87
PID 1456 wrote to memory of 468	1456	EXCEL.EXE	91
PID 1456 wrote to memory of 468	1456	EXCEL.EXE	91
PID 1456 wrote to memory of 1808	1456	EXCEL.EXE	92
PID 1456 wrote to memory of 1808	1456	EXCEL.EXE	92
PID 1456 wrote to memory of 1168	1456	EXCEL.EXE	95
PID 1456 wrote to memory of 1168	1456	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\18de59ab0a7a7a97ed10d758ba1b7edf5b16e3e9e1cdb1666c2b8b48516238b8.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:1456
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2148
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:468
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1808
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1168

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
eee94679f0512291c9935ab36e5fb83e

SHA1
8ff042f7a6bf0f52d99dfd625e3f68ffeb7dbfbc

SHA256
671d51cd2805c1ef67ecbd8310e0559c51fa6375245319043fcf3bf0fce4eb1a

SHA512
242a790db588b5d4bdea98abf11e1e258799ac969c4ce82677f5ecc264860e1af1d9b37a36666bde8b98bcdf8485d95bd3974ff2940ed81fa0cc5471a0b50585

Download Submit
C:\Users\Admin\uoya3.ocx

Filesize
33KB

MD5
38e58d5fa77dbcc313c91a0a49dc4ba8

SHA1
1029087462def3dbd90041a43283f3917dc9da1c

SHA256
a32245acdb3894736baf5f9041ae278c766957b5ebe1f08da0d2249165b26717

SHA512
fecf9a0006da91b27296b160798cfe0dceee41b5d213f35c0a0193157d67b98d1aef2e0322caecf3df8c1eb5b0bb97794beded32ad494e09b5001cfe5423c516

Download Submit
memory/1456-11-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-14-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-6-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-5-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-8-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-10-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-9-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-12-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-0-0x00007FF99A24D000-0x00007FF99A24E000-memory.dmp

Filesize
4KB

Download
memory/1456-13-0x00007FF957CB0000-0x00007FF957CC0000-memory.dmp

Filesize
64KB

Download
memory/1456-7-0x00007FF95A230000-0x00007FF95A240000-memory.dmp

Filesize
64KB

Download
memory/1456-3-0x00007FF95A230000-0x00007FF95A240000-memory.dmp

Filesize
64KB

Download
memory/1456-4-0x00007FF95A230000-0x00007FF95A240000-memory.dmp

Filesize
64KB

Download
memory/1456-15-0x00007FF957CB0000-0x00007FF957CC0000-memory.dmp

Filesize
64KB

Download
memory/1456-16-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-2-0x00007FF95A230000-0x00007FF95A240000-memory.dmp

Filesize
64KB

Download
memory/1456-44-0x00007FF99A24D000-0x00007FF99A24E000-memory.dmp

Filesize
4KB

Download
memory/1456-45-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-46-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-47-0x00007FF99A1B0000-0x00007FF99A3A5000-memory.dmp

Filesize
2.0MB

Download
memory/1456-1-0x00007FF95A230000-0x00007FF95A240000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads