b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3

General

Target

b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3.xls
Size

144KB
MD5

805e3b455a5933a04e810d7fb81c2530
SHA1

3088e8dfd2b0ab80615057f9be99f63d0654b430
SHA256

b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3
SHA512

f7d5c14d1f524bebeaafd8ffdae6d29fa06cfea722c6db8f078138e92207e70a062a0dda782878777dfee97b6b6dee82e7a28b4b326c71f568c9c6cd6bd2d333
SSDEEP

3072:iWOqqRsWFPf/M6iWVbrzQ7I91kpukZ1YJtXwcD:1On1kG

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

cmd.execmd.execmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1952	948	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	904	948	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1276	948	cmd.exe	EXCEL.EXE

Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

948 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

948 EXCEL.EXE
948 EXCEL.EXE
948 EXCEL.EXE
948 EXCEL.EXE
948 EXCEL.EXE

pid	process
948	EXCEL.EXE

pid	process
948	EXCEL.EXE
948	EXCEL.EXE
948	EXCEL.EXE
948	EXCEL.EXE
948	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 948 wrote to memory of 1952	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1952	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1952	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1952	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 904	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 904	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 904	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 904	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1276	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1276	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1276	948	EXCEL.EXE	cmd.exe
PID 948 wrote to memory of 1276	948	EXCEL.EXE	cmd.exe
PID 1952 wrote to memory of 1672	1952	cmd.exe	attrib.exe
PID 1952 wrote to memory of 1672	1952	cmd.exe	attrib.exe
PID 1952 wrote to memory of 1672	1952	cmd.exe	attrib.exe
PID 1952 wrote to memory of 1672	1952	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1672 attrib.exe

pid	process
1672	attrib.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\b19cdd39be99eb69c1382e002b247f097ede6729c57a758079979abc77769cb3.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1952

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1672

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:904

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1276

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/904-214-0x0000000000000000-mapping.dmp

Download
memory/948-71-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-62-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-57-0x0000000071FCD000-0x0000000071FD8000-memory.dmp

Filesize
44KB

Download
memory/948-73-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-59-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-61-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-60-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-72-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-63-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-65-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-64-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-66-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-67-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-70-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-68-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-54-0x000000002FD71000-0x000000002FD74000-memory.dmp

Filesize
12KB

Download
memory/948-58-0x0000000074D71000-0x0000000074D73000-memory.dmp

Filesize
8KB

Download
memory/948-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/948-69-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-74-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-75-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-77-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-76-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-78-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-80-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-79-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-81-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-103-0x0000000000750000-0x0000000000754000-memory.dmp

Filesize
16KB

Download
memory/948-371-0x0000000071FCD000-0x0000000071FD8000-memory.dmp

Filesize
44KB

Download
memory/948-55-0x0000000070FE1000-0x0000000070FE3000-memory.dmp

Filesize
8KB

Download
memory/1276-215-0x0000000000000000-mapping.dmp

Download
memory/1672-216-0x0000000000000000-mapping.dmp

Download
memory/1952-213-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads