a17257a4a1a71d882ccfd9037e726639b49a70bde211c5dc647492f26d27c430

General

Target

a17257a4a1a71d882ccfd9037e726639b49a70bde211c5dc647492f26d27c430.xls
Size

91KB
MD5

50edf8e28a4c5f13e49b31a07ce50ab5
SHA1

73dcd5bb08692eedccc64c5e42d450acb4961ea9
SHA256

a17257a4a1a71d882ccfd9037e726639b49a70bde211c5dc647492f26d27c430
SHA512

3c2ec56da9616f23a69ededeeb21cfc86d7e5750701a14e498e2a5e21bf99316175f90330cc0c8cad6224a9ea28a61624112b7132277c1b7a72d0e98d7024772
SSDEEP

1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgEbCXuZH4gb4CEn9J4ZMEM:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgF

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.muyehuayi.com/cmp/8asA99KPsyA/v6lUsWbLen/

xlm40.dropper

http://concivilpa.com.py/wp-admin/i3CQu9dzDrMW/

xlm40.dropper

https://wijsneusmedia.nl/cgi-bin/kFB/

xlm40.dropper

http://www.angloextrema.com.br/assets/oEt1yYckHKlnNIq/

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2228	2388	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2704	2388	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2732	2388	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2420	2388	regsvr32.exe	EXCEL.EXE

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

EXCEL.EXEregsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2388 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2388 EXCEL.EXE
2388 EXCEL.EXE
2388 EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
2388	EXCEL.EXE

pid	process
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2228	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2704	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2732	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe
PID 2388 wrote to memory of 2420	2388	EXCEL.EXE	regsvr32.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a17257a4a1a71d882ccfd9037e726639b49a70bde211c5dc647492f26d27c430.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2388-1-0x0000000071FFD000-0x0000000072008000-memory.dmp

Filesize
44KB

Download
memory/2388-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2388-15-0x0000000071FFD000-0x0000000072008000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads