a676b61910e1205f39e50700f6162075bc3cd41df4a0d5f26d797469e376551c

General

Target

a676b61910e1205f39e50700f6162075bc3cd41df4a0d5f26d797469e376551c.xls
Size

217KB
MD5

aac58dfb2c0812806ff01f29d59352e2
SHA1

a1f0158b128119acebda88993527af6d869a93be
SHA256

a676b61910e1205f39e50700f6162075bc3cd41df4a0d5f26d797469e376551c
SHA512

1b488962ce77dc0a53e79aff563727f3ef23cf0ead73cba9e23bf39d0fd445cbb4e1b6257552ef238ff22a8cef436b4edeb069e2220f21402bd39b1676f05529
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgXyY+TAQXTHGUMEyP5p6f5jQma:DbGUMVWlba

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://barkstage.es/wp-content/0E7NdYl7TZuHMJq7/

xlm40.dropper

http://contactworks.nl/images_old/NuEAhfF0PCFhvv/

xlm40.dropper

http://www.iam.ch/wp-content/cache/minify/O1OAjWnfen/

xlm40.dropper

https://www.elaboro.pl/wp-admin/J0hwyIMsk9YFIi/

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	4504	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2264	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4248	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4524	2780	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 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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2780	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2780	EXCEL.EXE
2780	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 4504	2780	EXCEL.EXE	68
PID 2780 wrote to memory of 4504	2780	EXCEL.EXE	68
PID 2780 wrote to memory of 2264	2780	EXCEL.EXE	69
PID 2780 wrote to memory of 2264	2780	EXCEL.EXE	69
PID 2780 wrote to memory of 4248	2780	EXCEL.EXE	70
PID 2780 wrote to memory of 4248	2780	EXCEL.EXE	70
PID 2780 wrote to memory of 4524	2780	EXCEL.EXE	71
PID 2780 wrote to memory of 4524	2780	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\a676b61910e1205f39e50700f6162075bc3cd41df4a0d5f26d797469e376551c.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:2780
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4504
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2264
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4248
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4524

Network

MITRE ATT&CK Enterprise v6

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

memory/2780-312-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-117-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-118-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-119-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-128-0x00007FFD522E0000-0x00007FFD522F0000-memory.dmp

Filesize
64KB

Download
memory/2780-129-0x00007FFD522E0000-0x00007FFD522F0000-memory.dmp

Filesize
64KB

Download
memory/2780-116-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-313-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-310-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-311-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads