1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9

General

Target

1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9.xls
Size

217KB
MD5

7e9fd6f8829cbbc1178693067b9c919b
SHA1

415050e00147c06c0e55f4149f387b981273a6ec
SHA256

1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9
SHA512

c981a55544ddeb69d187eadc0fd2e626de17c78baddb4643018b77e538b7aac4079044aad756b65d1b2c8331225d80c28ca3f3ba07dc15eabffb1ff714f1c623
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm7JnT:1bGUMVWlb5

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://app.clubdedocentes.com/storage/DCcq9ekgH99sI/

xlm40.dropper

http://linhkiendoc.com/app/payments/qoy5JqpLqrbsKl/

xlm40.dropper

http://sourcecool.com/throng/iOD/

xlm40.dropper

http://www.stickers-et-deco.com/Adapter/lYw/

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	3164	60	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4672	60	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3036	60	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3244	60	regsvr32.exe	65

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
60	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
60	EXCEL.EXE
60	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE
60	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 60 wrote to memory of 3164	60	EXCEL.EXE	68
PID 60 wrote to memory of 3164	60	EXCEL.EXE	68
PID 60 wrote to memory of 4672	60	EXCEL.EXE	69
PID 60 wrote to memory of 4672	60	EXCEL.EXE	69
PID 60 wrote to memory of 3036	60	EXCEL.EXE	70
PID 60 wrote to memory of 3036	60	EXCEL.EXE	70
PID 60 wrote to memory of 3244	60	EXCEL.EXE	71
PID 60 wrote to memory of 3244	60	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9.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:60
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3164
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4672
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3036
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3244

Network

MITRE ATT&CK Enterprise v6

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

memory/60-311-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-119-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-120-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-121-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-130-0x00007FF84DFE0000-0x00007FF84DFF0000-memory.dmp

Filesize
64KB

Download
memory/60-131-0x00007FF84DFE0000-0x00007FF84DFF0000-memory.dmp

Filesize
64KB

Download
memory/60-118-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-313-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-312-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/60-310-0x00007FF851770000-0x00007FF851780000-memory.dmp

Filesize
64KB

Download
memory/3036-270-0x0000000000000000-mapping.dmp

Download
memory/3164-268-0x0000000000000000-mapping.dmp

Download
memory/3244-271-0x0000000000000000-mapping.dmp

Download
memory/4672-269-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads