737ca60d8916f50af77b02b335ee2f7f7f2dde08b6b024bd9fa8550f217ccbaf

General

Target

737ca60d8916f50af77b02b335ee2f7f7f2dde08b6b024bd9fa8550f217ccbaf.xls
Size

101KB
MD5

a2eb75eb47b290474a11d8bef6e656c8
SHA1

db865c14732134888fd2d0f83bb9eb5b0a611dd7
SHA256

737ca60d8916f50af77b02b335ee2f7f7f2dde08b6b024bd9fa8550f217ccbaf
SHA512

e2492d426d9c719c818bff64d13419100cd4917feffcf9b49c47133e8cccad227e1f503d56ed699b910834e495b7213dbfe988c61e2fe01e6aa40fe6e5eb57d8
SSDEEP

3072:+Kpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+MbOBzbq0f6RlD9fxW8s8Ow:+Kpb8rGYrMPe3q7Q0XV5xtuE8vG8UM+E

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://dlfreight.com/wp-includes/zLuZdtVkoriGTaRE/

xlm40.dropper

http://hadramout21.com/jetpack-temp/KjOqTnCwBbVrz8w/

xlm40.dropper

http://groupesther.com/wp-admin/2hhcMwfOG0aRi1t/

xlm40.dropper

http://datainline.com/aspnet_client/56LwAJvy/

xlm40.dropper

http://greycoconut.com/edm/0ywf2bF/

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	1544	4088	regsvr32.exe	80

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.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 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
4088	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4088	EXCEL.EXE
4088	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 1544	4088	EXCEL.EXE	88
PID 4088 wrote to memory of 1544	4088	EXCEL.EXE	88
PID 4088 wrote to memory of 1544	4088	EXCEL.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\737ca60d8916f50af77b02b335ee2f7f7f2dde08b6b024bd9fa8550f217ccbaf.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:4088
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\txdn.dll
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:1544

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\txdn.dll

Filesize
36KB

MD5
3b79e62476916ff33ddc0668a0898e6d

SHA1
fe4f73a8019a0407cec5e2eb0c344adc4ab73bae

SHA256
418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81

SHA512
3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa

Download Submit
memory/4088-12-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-3-0x00007FFE6AEED000-0x00007FFE6AEEE000-memory.dmp

Filesize
4KB

Download
memory/4088-13-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-0-0x00007FFE2AED0000-0x00007FFE2AEE0000-memory.dmp

Filesize
64KB

Download
memory/4088-5-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-6-0x00007FFE2AED0000-0x00007FFE2AEE0000-memory.dmp

Filesize
64KB

Download
memory/4088-9-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-10-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-14-0x00007FFE28620000-0x00007FFE28630000-memory.dmp

Filesize
64KB

Download
memory/4088-2-0x00007FFE2AED0000-0x00007FFE2AEE0000-memory.dmp

Filesize
64KB

Download
memory/4088-52-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-4-0x00007FFE2AED0000-0x00007FFE2AEE0000-memory.dmp

Filesize
64KB

Download
memory/4088-8-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-7-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-15-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-18-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-17-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-16-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-1-0x00007FFE2AED0000-0x00007FFE2AEE0000-memory.dmp

Filesize
64KB

Download
memory/4088-50-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-51-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4088-11-0x00007FFE28620000-0x00007FFE28630000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads