0eeac411948772d2f29c4ed276d4f4419e17ab82762afb7d33ebd28ca00f6fa6

General

Target

Bill of Lading.xlsm
Size

52KB
MD5

0cac1b783270081d56ad48554de3d0e8
SHA1

2afa117869dfb3cbf34979e2d01dd64de663e9a9
SHA256

0eeac411948772d2f29c4ed276d4f4419e17ab82762afb7d33ebd28ca00f6fa6
SHA512

10e9cf38b7ec171e1b442571c538288b09994e2226f58dda8e66d6e990fefae9f01499890f72445a54e3b8fdc4a1a2e31c83d6e1d01d2f74d32eb88c35d48983

Score

10^/10

Malware Config

Signatures

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1516	EXCEL.EXE

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	2996	1516	cscript.exe	65

Script User-Agent 1 IoCs

description	flow	ioc
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Executes dropped EXE 1 IoCs

pid	Process
3408	aSNbkyKnzhtPT.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3408 set thread context of 3776	3408	aSNbkyKnzhtPT.exe	78

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

NTFS ADS 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\mm:Zone.Identifier	EXCEL.EXE
File opened for modification	C:\Users\Admin\AppData\Local\Temp\xx:Zone.Identifier	EXCEL.EXE
File created	C:\programdata\asc.txt:script1.vbs	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
1516	EXCEL.EXE
3776	ieinstal.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2996	1516	EXCEL.EXE	72
PID 1516 wrote to memory of 2996	1516	EXCEL.EXE	72
PID 2996 wrote to memory of 3408	2996	cscript.exe	76
PID 2996 wrote to memory of 3408	2996	cscript.exe	76
PID 2996 wrote to memory of 3408	2996	cscript.exe	76
PID 3408 wrote to memory of 3776	3408	aSNbkyKnzhtPT.exe	78
PID 3408 wrote to memory of 3776	3408	aSNbkyKnzhtPT.exe	78
PID 3408 wrote to memory of 3776	3408	aSNbkyKnzhtPT.exe	78
PID 3408 wrote to memory of 3776	3408	aSNbkyKnzhtPT.exe	78
PID 3408 wrote to memory of 3776	3408	aSNbkyKnzhtPT.exe	78

Blacklisted process makes network request 1 IoCs

flow	pid	Process
17	2996	cscript.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\Advf = "C:\\Users\\Admin\\AppData\\Local\\Advf\\Advf.hta"	aSNbkyKnzhtPT.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Bill of Lading.xlsm"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\System32\cscript.exe
  "C:\Windows\System32\cscript.exe" C:\programdata\asc.txt:script1.vbs
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  - Blacklisted process makes network request
  PID:2996
- - C:\programdata\aSNbkyKnzhtPT.exe
    C:\programdata\aSNbkyKnzhtPT.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    - Adds Run entry to start application
    PID:3408
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      Suspicious use of SetWindowsHookEx
      PID:3776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Web Service

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

memory/3776-10-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

Download
memory/3776-12-0x0000000000400000-0x0000000000554000-memory.dmp

Filesize
1.3MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads