4fbbd4c9591ac023cd7da6c9e9dd10e173c1e8db7302c424b401b5516ea09588

General

Target

4fbbd4c9591ac023cd7da6c9e9dd10e173c1e8db7302c424b401b5516ea09588.xls
Size

44KB
MD5

d597c69135c764796ccc916a9ed97d8f
SHA1

25bdf2dffd2df9435578eecd4ec560be5ede5678
SHA256

4fbbd4c9591ac023cd7da6c9e9dd10e173c1e8db7302c424b401b5516ea09588
SHA512

51220484fe348f5f99157882799f38e48948dce7bd648cd9913483d3a3a72ca9202628e0fdbf3a4bb24c273c07a3a3b6c9f49972a8a184591d8c2dc280fb4c58
SSDEEP

768:oPXk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJWL6uShYUQgcUcwWNvW1Tpl3ZeT:EXk3hbdlylKsgqopeJBWhZFGkE+cL2Nf

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 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	3744	3464	explorer.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	440	3464	explorer.exe	82

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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3464	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3464	EXCEL.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3464	EXCEL.EXE
3464	EXCEL.EXE
3464	EXCEL.EXE
3464	EXCEL.EXE
3464	EXCEL.EXE
3464	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 3744	3464	EXCEL.EXE	89
PID 3464 wrote to memory of 3744	3464	EXCEL.EXE	89
PID 2224 wrote to memory of 2136	2224	explorer.exe	91
PID 2224 wrote to memory of 2136	2224	explorer.exe	91
PID 3464 wrote to memory of 440	3464	EXCEL.EXE	93
PID 3464 wrote to memory of 440	3464	EXCEL.EXE	93
PID 1884 wrote to memory of 3212	1884	explorer.exe	95
PID 1884 wrote to memory of 3212	1884	explorer.exe	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4fbbd4c9591ac023cd7da6c9e9dd10e173c1e8db7302c424b401b5516ea09588.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:3464
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Public\xAo26p.vbs
  2⤵
  - Process spawned unexpected child process
  PID:3744
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Public\xAo26p.vbs
  2⤵
  - Process spawned unexpected child process
  PID:440

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Public\xAo26p.vbs"
  2⤵
  PID:2136

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Public\xAo26p.vbs"
  2⤵
  PID:3212

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\Public\xAo26p.vbs

Filesize
365B

MD5
586146af62044d054a54e6291ef51427

SHA1
339647bbdc4c0fc34984f5a7ad4d3b909c83b176

SHA256
571c451f89da319606bfad8fdff3c589954ca8ac52e4f1280cf3e3b67a1f2b5b

SHA512
9168ec7bb0d38a6ad0822ba42b0a38a895b7733644be6432cecf4cc4a4fc1b474d7acfb200a644c89564c209141337a11427274826dc61150cd711385ff19bc4

Download Submit
C:\Users\Public\xAo26p.vbs

Filesize
631B

MD5
c3722cb0f305f5f13f4b083920948014

SHA1
5c5e9710b6176e22cb3c36215130fdb3a5df592f

SHA256
034c223fec355a561797ae9703d837a4ef60a7bec72267d0d314187b5d225214

SHA512
eaf3b86029914f1c19dd5922cd015a1f94b39f43ab2ca44e58caa7250308a5bd11399b3f862423a2399255e7937a0a5c4e38048706145eb0094c114aeefe9d75

Download Submit
memory/3464-14-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-13-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-0-0x00007FF9913B0000-0x00007FF9913C0000-memory.dmp

Filesize
64KB

Download
memory/3464-8-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-7-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-9-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-6-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-5-0x00007FF9913B0000-0x00007FF9913C0000-memory.dmp

Filesize
64KB

Download
memory/3464-10-0x00007FF98ED60000-0x00007FF98ED70000-memory.dmp

Filesize
64KB

Download
memory/3464-11-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-3-0x00007FF9D13CD000-0x00007FF9D13CE000-memory.dmp

Filesize
4KB

Download
memory/3464-2-0x00007FF9913B0000-0x00007FF9913C0000-memory.dmp

Filesize
64KB

Download
memory/3464-12-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-15-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-18-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-17-0x00007FF98ED60000-0x00007FF98ED70000-memory.dmp

Filesize
64KB

Download
memory/3464-20-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-19-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-16-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download
memory/3464-4-0x00007FF9913B0000-0x00007FF9913C0000-memory.dmp

Filesize
64KB

Download
memory/3464-1-0x00007FF9913B0000-0x00007FF9913C0000-memory.dmp

Filesize
64KB

Download
memory/3464-35-0x00007FF9D1330000-0x00007FF9D1525000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads