2c56039d9e64e22bcf397bd7b686bf3c33c286b8feb57b5e18cd2cce712fa0f5

Analysis

max time kernel
149s
max time network
149s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
10/11/2022, 01:03

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General

Target
2c56039d9e64e22bcf397bd7b686bf3c33c286b8feb57b5e18cd2cce712fa0f5.xls
Size 91KB
Sample221110-becrmsdee8
SHA256 2c56039d9e64e22bcf397bd7b686bf3c33c286b8feb57b5e18cd2cce712fa0f5
MD5 36a79280902ab92fd393eb872c851b78
SHA1 ca70b7af425307a6530fbfae048c5e45436941a7
SHA512 834279ffd3b324aaa350a3ab3262395c701d4c58fcd58ee8b5c256501fcbcd745dc45d81d4ebd7d840c62a55efcc7a09709b56c713c04dcb5838f953d2a35213
SSDEEP 1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgIbCXuZH4gb4CEn9J4ZJBQvj:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://fixoutlet.com/logs/OGlRuU/
xlm40.dropper
http://www.cesasin.com.ar/administrator/viA95RR/
xlm40.dropper
http://blacktequila.com.br/2fb62HWWoKi5nfEq2D/XB5VOAXZkhVhSKveYUV/
xlm40.dropper
http://case.co.il/_js/dooigYa/

Signatures

Process spawned unexpected child process 4 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	3248	4844	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3184	4844	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3148	4844	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4880	4844	regsvr32.exe	65

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
4844	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE
4844	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 3248	4844	EXCEL.EXE	68
PID 4844 wrote to memory of 3248	4844	EXCEL.EXE	68
PID 4844 wrote to memory of 3184	4844	EXCEL.EXE	69
PID 4844 wrote to memory of 3184	4844	EXCEL.EXE	69
PID 4844 wrote to memory of 3148	4844	EXCEL.EXE	70
PID 4844 wrote to memory of 3148	4844	EXCEL.EXE	70
PID 4844 wrote to memory of 4880	4844	EXCEL.EXE	71
PID 4844 wrote to memory of 4880	4844	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2c56039d9e64e22bcf397bd7b686bf3c33c286b8feb57b5e18cd2cce712fa0f5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3248
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3184
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3148
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4844-120-0x00007FF9BF900000-0x00007FF9BF910000-memory.dmp

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memory/4844-121-0x00007FF9BF900000-0x00007FF9BF910000-memory.dmp

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memory/4844-122-0x00007FF9BF900000-0x00007FF9BF910000-memory.dmp

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memory/4844-123-0x00007FF9BF900000-0x00007FF9BF910000-memory.dmp

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memory/4844-132-0x00007FF9BCD10000-0x00007FF9BCD20000-memory.dmp

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memory/4844-133-0x00007FF9BCD10000-0x00007FF9BCD20000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads