6a88cb296f636a6675c58769c63e6b0021d837d17fce3319c9089127b9134aaa

General

Target

6a88cb296f636a6675c58769c63e6b0021d837d17fce3319c9089127b9134aaa.xls
Size

95KB
MD5

5419a5218d2804a028ff6dc6e6a33b3a
SHA1

6c0925794cc269f2cdfb3fcc785a4c4a54fa5a8e
SHA256

6a88cb296f636a6675c58769c63e6b0021d837d17fce3319c9089127b9134aaa
SHA512

04c11815d3bcc62ff949a78aae8afd9f86cb9b3afcf2035b9d4e8007fea9e50962c0c5642d69761fd8c13cb0367b0a836abc60a8f91a4283ca2b03302cebda18

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	2592	1056	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1872	1056	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2968	1056	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1372	1056	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

1056 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1056 EXCEL.EXE
1056 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE
1056	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1056 wrote to memory of 2592	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 2592	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 1872	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 1872	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 2968	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 2968	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 1372	1056	EXCEL.EXE	regsvr32.exe
PID 1056 wrote to memory of 1372	1056	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\6a88cb296f636a6675c58769c63e6b0021d837d17fce3319c9089127b9134aaa.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:1056

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2592

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1872

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:2968

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1372

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

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Downloads

memory/1056-308-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-117-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-118-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-119-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-128-0x00007FF9B3B90000-0x00007FF9B3BA0000-memory.dmp

Filesize
64KB

Download
memory/1056-129-0x00007FF9B3B90000-0x00007FF9B3BA0000-memory.dmp

Filesize
64KB

Download
memory/1056-311-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-310-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-309-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1056-116-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1372-271-0x0000000000000000-mapping.dmp

Download
memory/1872-267-0x0000000000000000-mapping.dmp

Download
memory/2592-266-0x0000000000000000-mapping.dmp

Download
memory/2968-268-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads