ebc7158986785f524c8c9b16516d6930c0f0e6810b9291f6636e359c718db7eb

Analysis

max time kernel
137s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 13:18

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General

Target

ebc7158986785f524c8c9b16516d6930c0f0e6810b9291f6636e359c718db7eb.xlsm
Size

20KB
MD5

3d9b46ec228475096d06662a6ce5048b
SHA1

4014fa877de1cbad4502dfbfca4d1788fd320881
SHA256

ebc7158986785f524c8c9b16516d6930c0f0e6810b9291f6636e359c718db7eb
SHA512

c782e606daf13a3083616f2897602c903484caca36af6d14314483bb0a8151e5621398fda6f5aabe935ba2a261370330ea0546f22daa4e67b935b2c9ea6b3a01
SSDEEP

384:CVb1GNjxKo4CGzPd6ZIwISKb5CzgObff9kC+xbX7ZnR:qINco4FLhnCBn9kC+xbLv

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://avirtual.com.ar/portfolio_low/LJtA7G2nnfwBAYE/

xlm40.dropper

http://ard-paya.ir/cgi-bin/ddiue5yX5k28KC33EKw/

xlm40.dropper

http://ascendmedicalsupplies.co.ke/FUTH99YV/faflDNXWq0bPv/

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	3024	1548	regsvr32.exe	27

System Location Discovery: System Language Discovery 1 TTPs 2 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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1548	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1548	EXCEL.EXE
1548	EXCEL.EXE
1548	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28
PID 1548 wrote to memory of 3024	1548	EXCEL.EXE	28

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\ebc7158986785f524c8c9b16516d6930c0f0e6810b9291f6636e359c718db7eb.xlsm
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\kytk.dll
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\kytk.dll

Filesize
7KB

MD5
adcd72d536a231b6e2d2b54fd8d1ec53

SHA1
53a649c3044c8477d1d2e16e8a1172efd31effbf

SHA256
c7521c3fe257008afb7001f7643f4eff175b0c56dd1c8eeeee8be3f881d5dca8

SHA512
2492f491280326ab028d88ba1104909f172eb21e84f4d1c9277b1e1f07f8d6f9fa34c58d8be33e13bf9dc242fbd3e3a401ab9fd407d9fa83c0774cec99e868b7

Download Submit
memory/1548-1-0x0000000072ACD000-0x0000000072AD8000-memory.dmp

Filesize
44KB

Download
memory/1548-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

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memory/1548-22-0x0000000072ACD000-0x0000000072AD8000-memory.dmp

Filesize
44KB

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads