ceefe85b9c76a739bf2ac0901175f3cb126c9b6e03a91d6daf4f1036f5689e86

General

Target

ceefe85b9c76a739bf2ac0901175f3cb126c9b6e03a91d6daf4f1036f5689e86.xls
Size

96KB
MD5

c02a174a3ef191447c3e7c94692d807e
SHA1

4e2dd3724d05ce61a5888d698138c1e66e731f10
SHA256

ceefe85b9c76a739bf2ac0901175f3cb126c9b6e03a91d6daf4f1036f5689e86
SHA512

f5004295c9d9e4ab433843774160142675ebe2712fa1cf8e54aecf551156edc1b302ecb2d45f8d65c59e837a3905e20f61e12e374c6dfc5a548e1d9c53007585
SSDEEP

1536:7kKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2HuS4hcTO97v7UYdEJmg:IKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgM

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4632	3428	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4308	3428	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3516	3428	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2796	3428	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
3428	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3428	EXCEL.EXE
3428	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE
3428	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3428 wrote to memory of 4632	3428	EXCEL.EXE	88
PID 3428 wrote to memory of 4632	3428	EXCEL.EXE	88
PID 3428 wrote to memory of 4308	3428	EXCEL.EXE	93
PID 3428 wrote to memory of 4308	3428	EXCEL.EXE	93
PID 3428 wrote to memory of 3516	3428	EXCEL.EXE	94
PID 3428 wrote to memory of 3516	3428	EXCEL.EXE	94
PID 3428 wrote to memory of 2796	3428	EXCEL.EXE	95
PID 3428 wrote to memory of 2796	3428	EXCEL.EXE	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ceefe85b9c76a739bf2ac0901175f3cb126c9b6e03a91d6daf4f1036f5689e86.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:3428
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4632
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4308
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3516
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2796

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
8eb1549f0ad980006ad75c3c271bf3a9

SHA1
2b9965a32dbfd05e27d6fcda8ac126428f01cbac

SHA256
e6b85773c2a9baced47b24213259ce9438b50354aebe06ad323f3b27607f18e8

SHA512
72147fdf4b415693b48abf044ee385702f5a12260352f7e79eb4b064481309900b3572ae714d2bf64f59b694c60828f435d3f8d92a3e288b00f447fbe7edda2c

Download Submit
memory/3428-10-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-14-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-5-0x00007FF858890000-0x00007FF8588A0000-memory.dmp

Filesize
64KB

Download
memory/3428-8-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-7-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-6-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-2-0x00007FF858890000-0x00007FF8588A0000-memory.dmp

Filesize
64KB

Download
memory/3428-0-0x00007FF858890000-0x00007FF8588A0000-memory.dmp

Filesize
64KB

Download
memory/3428-11-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-1-0x00007FF8988AD000-0x00007FF8988AE000-memory.dmp

Filesize
4KB

Download
memory/3428-4-0x00007FF858890000-0x00007FF8588A0000-memory.dmp

Filesize
64KB

Download
memory/3428-13-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-9-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-12-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-15-0x00007FF8567A0000-0x00007FF8567B0000-memory.dmp

Filesize
64KB

Download
memory/3428-16-0x00007FF8567A0000-0x00007FF8567B0000-memory.dmp

Filesize
64KB

Download
memory/3428-42-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-43-0x00007FF8988AD000-0x00007FF8988AE000-memory.dmp

Filesize
4KB

Download
memory/3428-44-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-45-0x00007FF898810000-0x00007FF898A05000-memory.dmp

Filesize
2.0MB

Download
memory/3428-3-0x00007FF858890000-0x00007FF8588A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads