7e3638d120694383935bb8b66f6e20fd9cfb2902d7865a4d8eb6d751175579ba

Analysis

max time kernel
103s
max time network
39s
platform
windows7_x64
resource
win7
submitted
08-07-2020 05:42

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General

Target

IRS_form_3690735.xls
Size

78KB
MD5

85d0e857f338ce777927f0e3fda149d5
SHA1

88d866392071f68237bbf46110c9d20f5c5eb9f7
SHA256

7e3638d120694383935bb8b66f6e20fd9cfb2902d7865a4d8eb6d751175579ba
SHA512

74b5c8c8dbf7eef921da24e95059a13a0944e8f8df1429e0734b6fb9bc179890c5c197d5a31fbe379183917da04f986718c41c4b5db9cb8c65fe34a43a3d727f

Score

6^/10

Malware Config

Signatures

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

616 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

616 EXCEL.EXE
616 EXCEL.EXE
616 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

EXCEL.EXE

pid process

616 EXCEL.EXE

pid	process
616	EXCEL.EXE

pid	process
616	EXCEL.EXE
616	EXCEL.EXE
616	EXCEL.EXE

pid	process
616	EXCEL.EXE

Process spawned suspicious child process 1 IoCs

This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

Processes:

DW20.EXE

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1556	616	DW20.EXE	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEDW20.EXE

description	pid	process	target process
PID 616 wrote to memory of 1556	616	EXCEL.EXE	DW20.EXE
PID 616 wrote to memory of 1556	616	EXCEL.EXE	DW20.EXE
PID 616 wrote to memory of 1556	616	EXCEL.EXE	DW20.EXE
PID 616 wrote to memory of 1556	616	EXCEL.EXE	DW20.EXE
PID 616 wrote to memory of 1556	616	EXCEL.EXE	DW20.EXE
PID 1556 wrote to memory of 864	1556	DW20.EXE	dwwin.exe
PID 1556 wrote to memory of 864	1556	DW20.EXE	dwwin.exe
PID 1556 wrote to memory of 864	1556	DW20.EXE	dwwin.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

dwwin.exe

pid process

864 dwwin.exe

pid	process
864	dwwin.exe

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\IRS_form_3690735.xls
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:616

C:\PROGRA~1\COMMON~1\MICROS~1\DW\DW20.EXE
"C:\PROGRA~1\COMMON~1\MICROS~1\DW\DW20.EXE" -x -s 1164
2⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1556

C:\Windows\system32\dwwin.exe
C:\Windows\system32\dwwin.exe -x -s 1164
3⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:864

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\66706.cvr

Download Submit
memory/864-1-0x0000000000000000-mapping.dmp

Download
memory/864-2-0x0000000001E70000-0x0000000001E81000-memory.dmp

Filesize
68KB

Download
memory/864-4-0x00000000023C0000-0x00000000023D1000-memory.dmp

Filesize
68KB

Download
memory/1556-0-0x0000000000000000-mapping.dmp

Download