a230ad5ca2567b174c97fc9d38e23cae4e243a2df847daa1d2290024c480cdc8

General

Target

a230ad5ca2567b174c97fc9d38e23cae4e243a2df847daa1d2290024c480cdc8.xls
Size

95KB
MD5

f2d0109c32bca89c212d650d4760bf17
SHA1

7c636757a786500b1c04695980eb81f374c34d16
SHA256

a230ad5ca2567b174c97fc9d38e23cae4e243a2df847daa1d2290024c480cdc8
SHA512

35070dc3015dddd92c420c77735946a57535c303054698686dd92193e200d22e9bcc0aa5d4a12aa561d2dce99e91096379996239e002144e95674a04cb98a5e5
SSDEEP

1536:iFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgYHuS4hcTO97v7UYdEJmFB2:cKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgk

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://educacionsanvicentefundacion.com/iplookup/wYEInbaN/

xlm40.dropper

https://www.4monkeys.com/wp-admin/dNAuBEKo/

xlm40.dropper

http://haircutbar.com/cgi-bin/dNfEA5F/

xlm40.dropper

http://gedebey-tvradio.info/wp-includes/T0J9THbd5f2/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3060	3140	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1528	3140	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4476	3140	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2728	3140	regsvr32.exe	EXCEL.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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

3140 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3140 EXCEL.EXE
3140 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3140 wrote to memory of 3060	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 3060	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 1528	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 1528	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 4476	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 4476	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 2728	3140	EXCEL.EXE	regsvr32.exe
PID 3140 wrote to memory of 2728	3140	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a230ad5ca2567b174c97fc9d38e23cae4e243a2df847daa1d2290024c480cdc8.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:3140
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3060
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1528
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4476
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uoya4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2728

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
57a038b6cb5125a3ca8eb1e688913245

SHA1
1c465f98309cebef74bffa72ae83fbbd22697641

SHA256
d1d0067ed193cce02f1ee8fcea37529bf835fab41d28cb5c812e1e5f938fd494

SHA512
2f37c2628d84ffdacfed10e34543357869a19852d3cd11bb7eca41f7e3f03cd07dd17875312ff3ef600117a77a31b852037761c79d277927e2dcc16aa8975b7f

Download Submit
memory/3140-10-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-30-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-2-0x00007FF9482F0000-0x00007FF948300000-memory.dmp

Filesize
64KB

Download
memory/3140-4-0x00007FF9482F0000-0x00007FF948300000-memory.dmp

Filesize
64KB

Download
memory/3140-6-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-5-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-8-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-11-0x00007FF946150000-0x00007FF946160000-memory.dmp

Filesize
64KB

Download
memory/3140-1-0x00007FF98830D000-0x00007FF98830E000-memory.dmp

Filesize
4KB

Download
memory/3140-3-0x00007FF9482F0000-0x00007FF948300000-memory.dmp

Filesize
64KB

Download
memory/3140-7-0x00007FF9482F0000-0x00007FF948300000-memory.dmp

Filesize
64KB

Download
memory/3140-12-0x00007FF946150000-0x00007FF946160000-memory.dmp

Filesize
64KB

Download
memory/3140-14-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-15-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-13-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-28-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-29-0x00007FF98830D000-0x00007FF98830E000-memory.dmp

Filesize
4KB

Download
memory/3140-0-0x00007FF9482F0000-0x00007FF948300000-memory.dmp

Filesize
64KB

Download
memory/3140-31-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/3140-9-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads