36790b80dd1d66296f5c29898a90fe772f897641cbe15fc55f38bea96daf1bcc

General

Target

36790b80dd1d66296f5c29898a90fe772f897641cbe15fc55f38bea96daf1bcc.xls
Size

91KB
MD5

5c88a2ce0bd19e18be4d2fca5a8636dd
SHA1

238ffe7741bd1c8f4584f2020746501fdaa0336d
SHA256

36790b80dd1d66296f5c29898a90fe772f897641cbe15fc55f38bea96daf1bcc
SHA512

efb10359db00b3c819265e32082f16bf675abf4d01e706aaad4da1d267752c7c5a31650913a48bd10814227af9b5ff4be5c1d0935cab3b270f868378060d7f03
SSDEEP

1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgCbCXuZH4gb4CEn9J4ZmL5:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgF

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://helpeve.com/wp-admin/sOdeuF1c4DV2h/

xlm40.dropper

http://christplanet.com/wp-admin/maint/mtlsi/TxsAE7TAAb/

xlm40.dropper

http://www.chawkyfrenn.com/icon/LRWYSefRL7/

xlm40.dropper

http://chist.com/dir-/N5zALqqTmf/

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	4968	1612	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	372	1612	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4460	1612	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2988	1612	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 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
1612	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1612	EXCEL.EXE
1612	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 4968	1612	EXCEL.EXE	84
PID 1612 wrote to memory of 4968	1612	EXCEL.EXE	84
PID 1612 wrote to memory of 372	1612	EXCEL.EXE	89
PID 1612 wrote to memory of 372	1612	EXCEL.EXE	89
PID 1612 wrote to memory of 4460	1612	EXCEL.EXE	90
PID 1612 wrote to memory of 4460	1612	EXCEL.EXE	90
PID 1612 wrote to memory of 2988	1612	EXCEL.EXE	97
PID 1612 wrote to memory of 2988	1612	EXCEL.EXE	97

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\36790b80dd1d66296f5c29898a90fe772f897641cbe15fc55f38bea96daf1bcc.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:1612
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4968
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:372
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4460
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2988

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
23fd6fafb88998738931cdf06f68637b

SHA1
0306c457df5ff1e25d6ffea0f5852d261946491c

SHA256
06f20d1f571c96d1f843d14f837aaaa613db09d2d7a4c6accb65d7feaf1a611e

SHA512
a37edc100aa34f1b61d9019033fa4db1d4448acb1f39c6f4a554dd60a885f7b9783594f811357b1ce51ed816bd331f7fa85256f2a7996c4e85cf9403881c1cf5

Download Submit
memory/1612-14-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-40-0x00007FFEEF1AD000-0x00007FFEEF1AE000-memory.dmp

Filesize
4KB

Download
memory/1612-4-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-5-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-6-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

Filesize
64KB

Download
memory/1612-2-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

Filesize
64KB

Download
memory/1612-7-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

Filesize
64KB

Download
memory/1612-9-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-8-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-11-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-13-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-0-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

Filesize
64KB

Download
memory/1612-3-0x00007FFEAF190000-0x00007FFEAF1A0000-memory.dmp

Filesize
64KB

Download
memory/1612-15-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-16-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-12-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-10-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-18-0x00007FFEAD130000-0x00007FFEAD140000-memory.dmp

Filesize
64KB

Download
memory/1612-20-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-19-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-39-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-17-0x00007FFEAD130000-0x00007FFEAD140000-memory.dmp

Filesize
64KB

Download
memory/1612-41-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-42-0x00007FFEEF110000-0x00007FFEEF305000-memory.dmp

Filesize
2.0MB

Download
memory/1612-1-0x00007FFEEF1AD000-0x00007FFEEF1AE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads