a4346b128d0b684363e5ed718a5f93c0fecf3c16be414f849361954ecd5c42ed

General

Target

a4346b128d0b684363e5ed718a5f93c0fecf3c16be414f849361954ecd5c42ed.xls
Size

95KB
MD5

b05017a273be55d55901aa396d7a8fce
SHA1

5ee4b6ffad506131c17b2cd1b0e1976b00b99b2a
SHA256

a4346b128d0b684363e5ed718a5f93c0fecf3c16be414f849361954ecd5c42ed
SHA512

e5a4605cccff16a9ed3a95fa8ae23956e2c58839583648bc9f70c374bd5b4d770675b5df26fd4f5e6787e3c0d34943f9d8fae134e27f45a330cd6fcc14ed8c57

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.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	3620	2152	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3380	2152	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3692	2152	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3832	2152	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 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

Processes:

EXCEL.EXE

pid process

2152 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2152 EXCEL.EXE
2152 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE
2152	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2152 wrote to memory of 3620	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3620	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3380	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3380	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3692	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3692	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3832	2152	EXCEL.EXE	regsvr32.exe
PID 2152 wrote to memory of 3832	2152	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\a4346b128d0b684363e5ed718a5f93c0fecf3c16be414f849361954ecd5c42ed.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:2152

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3620

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3380

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3692

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3832

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/2152-309-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-117-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-118-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-119-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-128-0x00007FFB70D60000-0x00007FFB70D70000-memory.dmp

Filesize
64KB

Download
memory/2152-129-0x00007FFB70D60000-0x00007FFB70D70000-memory.dmp

Filesize
64KB

Download
memory/2152-116-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-311-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-310-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/2152-308-0x00007FFB73B50000-0x00007FFB73B60000-memory.dmp

Filesize
64KB

Download
memory/3380-267-0x0000000000000000-mapping.dmp

Download
memory/3620-266-0x0000000000000000-mapping.dmp

Download
memory/3692-268-0x0000000000000000-mapping.dmp

Download
memory/3832-271-0x0000000000000000-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