53f380eea2b27b0934c695591a9038372edd73562be1ee4008a7ac6b83d0d9b2

General

Target

Document-138395542.xls
Size

537KB
MD5

88d4946e37afc60d707b8182f050a2df
SHA1

afe97738f786f99a077cf535c1e3770e05b56887
SHA256

ab30095a5e8e8df5537d543ce27fc11ad889e5949a107816759f7aa6dae1903f
SHA512

bcf903ee7907ecdbf57e65f87ffb696ed1fa49bfba41d6a8253f89441a9d5494bdde9e17076f7d77bee38da74f1cd02bbc548f12aa54874802f963c84b993d2f

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://190.14.37.244/44490.9015596065.dat

xlm40.dropper

http://194.36.191.35/44490.9015596065.dat

xlm40.dropper

http://178.23.190.8/44490.9015596065.dat

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2352	2596	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3140	2596	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2948	2596	regsvr32.exe	EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

2596 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2596 wrote to memory of 2352	2596	EXCEL.EXE	regsvr32.exe
PID 2596 wrote to memory of 2352	2596	EXCEL.EXE	regsvr32.exe
PID 2596 wrote to memory of 3140	2596	EXCEL.EXE	regsvr32.exe
PID 2596 wrote to memory of 3140	2596	EXCEL.EXE	regsvr32.exe
PID 2596 wrote to memory of 2948	2596	EXCEL.EXE	regsvr32.exe
PID 2596 wrote to memory of 2948	2596	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Document-138395542.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2596

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac
2⤵
- Process spawned unexpected child process
PID:2352

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac1
2⤵
- Process spawned unexpected child process
PID:3140

C:\Windows\SYSTEM32\regsvr32.exe
regsvr32 -silent ..\Celod.wac2
2⤵
- Process spawned unexpected child process
PID:2948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2352-262-0x0000000000000000-mapping.dmp

Download
memory/2596-115-0x00007FFB51F30000-0x00007FFB51F40000-memory.dmp

Filesize
64KB

Download
memory/2596-116-0x00007FFB51F30000-0x00007FFB51F40000-memory.dmp

Filesize
64KB

Download
memory/2596-117-0x00007FFB51F30000-0x00007FFB51F40000-memory.dmp

Filesize
64KB

Download
memory/2596-118-0x00007FFB51F30000-0x00007FFB51F40000-memory.dmp

Filesize
64KB

Download
memory/2596-119-0x00007FFB51F30000-0x00007FFB51F40000-memory.dmp

Filesize
64KB

Download
memory/2596-120-0x000002A15D250000-0x000002A15D252000-memory.dmp

Filesize
8KB

Download
memory/2596-121-0x000002A15D250000-0x000002A15D252000-memory.dmp

Filesize
8KB

Download
memory/2596-122-0x000002A15D250000-0x000002A15D252000-memory.dmp

Filesize
8KB

Download
memory/2596-171-0x000002A15D250000-0x000002A15D252000-memory.dmp

Filesize
8KB

Download
memory/2948-264-0x0000000000000000-mapping.dmp

Download
memory/3140-263-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads