e62ae281c6152d0fb7c49f415b394657d645f2f5fc93f238239f19608c94fbea

General

Target

MACRO-DFIR-RETO.xls
Size

648KB
MD5

dfa567619d3d7935688df7d0bba6aed6
SHA1

7d6e6d88e846ca396338f0bc16e22c8a2b27fc82
SHA256

e62ae281c6152d0fb7c49f415b394657d645f2f5fc93f238239f19608c94fbea
SHA512

3b490fabdf9999a396dabca51a9be2cc80409aacd747c82308ab2dfad24e92d6046fc915ec5639d12e6668226704784c2dc59692488591e4eeef0cbf978d7c61
SSDEEP

6144:Kknl9oBdySAx76F6XeyTVtW/9Ny9ABnl5/PBgxOHjuM9MV:El5/WxIj8

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://nws.visionconsulting.ro/N1G1KCXA/dot.html

xlm40.dropper

https://royalpalm.sparkblue.lk/vCNhYrq3Yg8/dot.html

Signatures

Process spawned unexpected child process 2 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	1384	3508	regsvr32.exe	88
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1728	3508	regsvr32.exe	88

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
3508	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3508	EXCEL.EXE
3508	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE
3508	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 1384	3508	EXCEL.EXE	93
PID 3508 wrote to memory of 1384	3508	EXCEL.EXE	93
PID 3508 wrote to memory of 1728	3508	EXCEL.EXE	94
PID 3508 wrote to memory of 1728	3508	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\MACRO-DFIR-RETO.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:3508
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 -s ..\iroto.dll
  2⤵
  - Process spawned unexpected child process
  PID:1384
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 -s ..\iroto1.dll
  2⤵
  - Process spawned unexpected child process
  PID:1728

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3768,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4012 /prefetch:8
1⤵
PID:2032

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
7f19cef92b56b5db300f718a0b67a7e1

SHA1
32c0db7cbbad6c693144923366665b478e0e8f53

SHA256
6231c3e17b6f51169bba4f655730d7aff2cf731232e61c168cdf6fe53318ec4f

SHA512
a96d278097b2391a92f2e0d730dd18744fb3b36eac6f1adee191fd9a8923c8cd0a2fa7c931776dd7d22a1bef8be0541af4548814388989b02377b938064077b3

Download Submit
memory/3508-9-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-1-0x00007FF8B08ED000-0x00007FF8B08EE000-memory.dmp

Filesize
4KB

Download
memory/3508-13-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-5-0x00007FF8708D0000-0x00007FF8708E0000-memory.dmp

Filesize
64KB

Download
memory/3508-4-0x00007FF8708D0000-0x00007FF8708E0000-memory.dmp

Filesize
64KB

Download
memory/3508-8-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-7-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-6-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-14-0x00007FF86E060000-0x00007FF86E070000-memory.dmp

Filesize
64KB

Download
memory/3508-0-0x00007FF8708D0000-0x00007FF8708E0000-memory.dmp

Filesize
64KB

Download
memory/3508-3-0x00007FF8708D0000-0x00007FF8708E0000-memory.dmp

Filesize
64KB

Download
memory/3508-2-0x00007FF8708D0000-0x00007FF8708E0000-memory.dmp

Filesize
64KB

Download
memory/3508-10-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-15-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-16-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-12-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-18-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-17-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-34-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-35-0x00007FF8B08ED000-0x00007FF8B08EE000-memory.dmp

Filesize
4KB

Download
memory/3508-36-0x00007FF8B0850000-0x00007FF8B0A45000-memory.dmp

Filesize
2.0MB

Download
memory/3508-11-0x00007FF86E060000-0x00007FF86E070000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads