b36458a6bcdf273b3eb5bfdaa61600052f7d84a944c8037fa98f845872545675

General

Target

b36458a6bcdf273b3eb5bfdaa61600052f7d84a944c8037fa98f845872545675.xls
Size

96KB
MD5

bad7820b01e7a32a474d21edf5386394
SHA1

375a2008df9abd782181c07cb381de5ac7605881
SHA256

b36458a6bcdf273b3eb5bfdaa61600052f7d84a944c8037fa98f845872545675
SHA512

1d60d48f834e9be0e135c98b22df0d845c91991739dd8b3f2269cf9b05ab2a6c7282b6312a98d7300020e266bea6659fc2d4f16fb78a658e04bf598f33c664d7
SSDEEP

1536:7kKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2HuS4hcTO97v7UYdEJm0:IKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgQ

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	1824	448	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	724	448	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	620	448	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2708	448	regsvr32.exe	81

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\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

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

pid	Process
448	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
448	EXCEL.EXE
448	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE
448	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 1824	448	EXCEL.EXE	86
PID 448 wrote to memory of 1824	448	EXCEL.EXE	86
PID 448 wrote to memory of 724	448	EXCEL.EXE	89
PID 448 wrote to memory of 724	448	EXCEL.EXE	89
PID 448 wrote to memory of 620	448	EXCEL.EXE	91
PID 448 wrote to memory of 620	448	EXCEL.EXE	91
PID 448 wrote to memory of 2708	448	EXCEL.EXE	92
PID 448 wrote to memory of 2708	448	EXCEL.EXE	92

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b36458a6bcdf273b3eb5bfdaa61600052f7d84a944c8037fa98f845872545675.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:448
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1824
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:724
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:620
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2708

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
3KB

MD5
1c58dc9c97ff39d578c4b9b4271895e7

SHA1
98d82734937ec6d9b3a8ca04a03a23781c92b4af

SHA256
c876af5c608e886cbc3b51231b68109efd1ab6eda2078e42b87d4ab106d1a4ae

SHA512
2c83299448eadb39d56348089dbd30456e8b3f00e9a95a171aaf7ae6ae8724f625ee2f441f88c312a49d5e0389fe11418acf7ce39bd6a28c2da0b6a82cf41a82

Download Submit
memory/448-10-0x00007FFB0C8F0000-0x00007FFB0C900000-memory.dmp

Filesize
64KB

Download
memory/448-13-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-4-0x00007FFB0E9F0000-0x00007FFB0EA00000-memory.dmp

Filesize
64KB

Download
memory/448-3-0x00007FFB4EA0D000-0x00007FFB4EA0E000-memory.dmp

Filesize
4KB

Download
memory/448-5-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-8-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-9-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-7-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-6-0x00007FFB0E9F0000-0x00007FFB0EA00000-memory.dmp

Filesize
64KB

Download
memory/448-2-0x00007FFB0E9F0000-0x00007FFB0EA00000-memory.dmp

Filesize
64KB

Download
memory/448-0-0x00007FFB0E9F0000-0x00007FFB0EA00000-memory.dmp

Filesize
64KB

Download
memory/448-16-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-11-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-15-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-17-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-12-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-19-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-18-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-14-0x00007FFB0C8F0000-0x00007FFB0C900000-memory.dmp

Filesize
64KB

Download
memory/448-49-0x00007FFB4E970000-0x00007FFB4EB65000-memory.dmp

Filesize
2.0MB

Download
memory/448-1-0x00007FFB0E9F0000-0x00007FFB0EA00000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads