cce2048527ffdaa3366408615084a31425bd8793e75f41d9a3a05d25f74f7396

General

Target

cce2048527ffdaa3366408615084a31425bd8793e75f41d9a3a05d25f74f7396.xls
Size

95KB
MD5

9e52aa90f3224bba98c6df773c63b77b
SHA1

4de1a1453d190025b5ac77677317c4a4fb269133
SHA256

cce2048527ffdaa3366408615084a31425bd8793e75f41d9a3a05d25f74f7396
SHA512

ea0a7910c7459b616e5be45eea45e35628a86f5d7ce88a0caad82047e8da5d366d6b454caf6b810ff81df4fc4f2a21dc3af44a0bd5e9b25227ea2c41df2b134c
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgBHuS4hcTO97v7UYdEJmMq:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgy

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://atperson.com/campusvirtual/3aAaeSKPaURF/

xlm40.dropper

https://buffetmazzi.com.br/ckfinder/i/

xlm40.dropper

http://atici.net/c/MgEC/

xlm40.dropper

http://www.birebiregitim.net/wp-includes/f/

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	3708	2300	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4788	2300	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2144	2300	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4860	2300	regsvr32.exe	82

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
2300	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2300	EXCEL.EXE
2300	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE
2300	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 3708	2300	EXCEL.EXE	90
PID 2300 wrote to memory of 3708	2300	EXCEL.EXE	90
PID 2300 wrote to memory of 4788	2300	EXCEL.EXE	92
PID 2300 wrote to memory of 4788	2300	EXCEL.EXE	92
PID 2300 wrote to memory of 2144	2300	EXCEL.EXE	93
PID 2300 wrote to memory of 2144	2300	EXCEL.EXE	93
PID 2300 wrote to memory of 4860	2300	EXCEL.EXE	94
PID 2300 wrote to memory of 4860	2300	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cce2048527ffdaa3366408615084a31425bd8793e75f41d9a3a05d25f74f7396.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:2300
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3708
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4788
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2144
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4860

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
23ee52c0fc0b5c77a0380155b38b59bb

SHA1
e2bf4f6ea35bb889d5093438cff496e9cad0ffca

SHA256
acee286095413b1ba460fba4b8e34001625d3e220f0c80be6004dae9881720c7

SHA512
c3cc98ff05fd6c2c8b1608ee71b650061ae6f5923a9065e3e3c505379c1671436cc172312cf3a4a0ecb1148f701f8cc5b89304f5d9a4e2fcafd14a2d6e1a134b

Download Submit
memory/2300-12-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-7-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-4-0x00007FF8F6550000-0x00007FF8F6560000-memory.dmp

Filesize
64KB

Download
memory/2300-3-0x00007FF8F6550000-0x00007FF8F6560000-memory.dmp

Filesize
64KB

Download
memory/2300-2-0x00007FF8F6550000-0x00007FF8F6560000-memory.dmp

Filesize
64KB

Download
memory/2300-6-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-0-0x00007FF8F6550000-0x00007FF8F6560000-memory.dmp

Filesize
64KB

Download
memory/2300-8-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-9-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-10-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-5-0x00007FF8F6550000-0x00007FF8F6560000-memory.dmp

Filesize
64KB

Download
memory/2300-11-0x00007FF8F4420000-0x00007FF8F4430000-memory.dmp

Filesize
64KB

Download
memory/2300-17-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-15-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-18-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-19-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-13-0x00007FF8F4420000-0x00007FF8F4430000-memory.dmp

Filesize
64KB

Download
memory/2300-16-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-20-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-14-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-42-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-43-0x00007FF93656D000-0x00007FF93656E000-memory.dmp

Filesize
4KB

Download
memory/2300-44-0x00007FF9364D0000-0x00007FF9366C5000-memory.dmp

Filesize
2.0MB

Download
memory/2300-1-0x00007FF93656D000-0x00007FF93656E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads