42d1b7820a4e879e80e070a2973c1fced76e9a0344c5e740dc25ca3f481b2645

General

Target

42d1b7820a4e879e80e070a2973c1fced76e9a0344c5e740dc25ca3f481b2645.xls
Size

70KB
MD5

12e265c7064970be2daab4f3a751fd1c
SHA1

de4a947dc85e1ff0784a1ec3c0788d2e39bb369e
SHA256

42d1b7820a4e879e80e070a2973c1fced76e9a0344c5e740dc25ca3f481b2645
SHA512

a600179f37b927b6d3067f5b8f60eaf13d7a675683bb14f2e24dd85580b5b61ba856ab205f3cfa757acd7e6c810946952484ae5316838f39b5c350a555e77140
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+/+hDcnTLiQrRTZws8E7K:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMl

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://prprofile.com/wp-admin/CIqrvgYsvBiBlIM/

xlm40.dropper

https://retardantedefuegoperu.com/slider/rFhAa78/

xlm40.dropper

http://survei.absensi.net/cc-content/YCcjkOA3ijYNu46Y/

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	4264	876	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1072	876	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4392	876	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 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
876	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
876	EXCEL.EXE
876	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE
876	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 4264	876	EXCEL.EXE	87
PID 876 wrote to memory of 4264	876	EXCEL.EXE	87
PID 876 wrote to memory of 1072	876	EXCEL.EXE	88
PID 876 wrote to memory of 1072	876	EXCEL.EXE	88
PID 876 wrote to memory of 4392	876	EXCEL.EXE	90
PID 876 wrote to memory of 4392	876	EXCEL.EXE	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\42d1b7820a4e879e80e070a2973c1fced76e9a0344c5e740dc25ca3f481b2645.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:876
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4264
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1072
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4392

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
7585de98fbdffe34a479d315fc1d6ef5

SHA1
c4ba910bf92f797fd2f26be4aa308aeae96f2e9b

SHA256
38ccf9c587a224aea97b3447cad92f13a9f8448a45881472b47586488993bf93

SHA512
096e208f2bdaae4b16015c97745f65500769af5783a05054d4e586f48985a1e989006accb8d5fbce08782f6f9eabff8ffb1558b2cffb7fd8bac4a984d5ef4972

Download Submit
memory/876-13-0x00007FFCAFD50000-0x00007FFCAFD60000-memory.dmp

Filesize
64KB

Download
memory/876-10-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-5-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/876-3-0x00007FFCF26CD000-0x00007FFCF26CE000-memory.dmp

Filesize
4KB

Download
memory/876-7-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-11-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-1-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/876-9-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-12-0x00007FFCAFD50000-0x00007FFCAFD60000-memory.dmp

Filesize
64KB

Download
memory/876-8-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-4-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/876-6-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-22-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-16-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-20-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-21-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-15-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-19-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-18-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-17-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-14-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-2-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/876-38-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/876-0-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads