9c733d050455dd447c943be4db2a5d777b5feba01fea6a8bb4411eed1146e7eb

General

Target

9c733d050455dd447c943be4db2a5d777b5feba01fea6a8bb4411eed1146e7eb.xls
Size

96KB
MD5

b278f81a09caeaa8d8ed6e877fd548cd
SHA1

04dc8560817a6b5e18c98ff67dbbc34e9f379b05
SHA256

9c733d050455dd447c943be4db2a5d777b5feba01fea6a8bb4411eed1146e7eb
SHA512

842eb1804b61b5f35614c07a5d97c7f0398b008b7d39d29d736ee3027256d8c29412f663e8624815e01f2929df4dc31c63413c7bc296f8d67025b0e00d71ab3f
SSDEEP

1536:7kKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2HuS4hcTO97v7UYdEJmE:IKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgA

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://atperson.com/campusvirtual/EOgFGo17w/

xlm40.dropper

https://eliteturismo.com/phpmailer-old/dafdBxQONtk5Uf9dxll/

xlm40.dropper

http://atici.net/c/JDFDBMIz/

xlm40.dropper

http://domesticuif.co.za/libraries/nbnH9dpd/

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	2264	4544	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3300	4544	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2848	4544	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5100	4544	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4544 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4544 EXCEL.EXE
4544 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE
4544	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4544 wrote to memory of 2264	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 2264	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 3300	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 3300	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 2848	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 2848	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 5100	4544	EXCEL.EXE	regsvr32.exe
PID 4544 wrote to memory of 5100	4544	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\9c733d050455dd447c943be4db2a5d777b5feba01fea6a8bb4411eed1146e7eb.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:4544
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2264
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3300
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2848
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:5100

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
d1641972e865be0587faa025c7bde573

SHA1
80866448457c2d761a9ba02eb4a359e7ea7de169

SHA256
ceb45daa5105cd083f61f78e3834c315eebcbf5a13306f4421d65f44ae3527ba

SHA512
53f5d25d21936de349ff9b9c33c3b07f389fba7a0a492cdfa9b488e6da87988bb1ff89c365a41076051367ac14dcd5d0e53512458d8c4d888496da961bacacb2

Download Submit
memory/4544-10-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-0-0x00007FFCA9C50000-0x00007FFCA9C60000-memory.dmp

Filesize
64KB

Download
memory/4544-12-0x00007FFCA72F0000-0x00007FFCA7300000-memory.dmp

Filesize
64KB

Download
memory/4544-8-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-6-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-5-0x00007FFCA9C50000-0x00007FFCA9C60000-memory.dmp

Filesize
64KB

Download
memory/4544-11-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-2-0x00007FFCA9C50000-0x00007FFCA9C60000-memory.dmp

Filesize
64KB

Download
memory/4544-3-0x00007FFCE9C6D000-0x00007FFCE9C6E000-memory.dmp

Filesize
4KB

Download
memory/4544-1-0x00007FFCA9C50000-0x00007FFCA9C60000-memory.dmp

Filesize
64KB

Download
memory/4544-4-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-7-0x00007FFCA9C50000-0x00007FFCA9C60000-memory.dmp

Filesize
64KB

Download
memory/4544-13-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-16-0x00007FFCA72F0000-0x00007FFCA7300000-memory.dmp

Filesize
64KB

Download
memory/4544-15-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-14-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-42-0x00007FFCE9BD0000-0x00007FFCE9DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4544-9-0x00007FFCE9BD0000-0x00007FFCE9DC5000-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