3a8aa30d14f6aa4b7830f6b8272f0d28d8c90be2ed57b0185cb9abb4ad276ade

General

Target

3a8aa30d14f6aa4b7830f6b8272f0d28d8c90be2ed57b0185cb9abb4ad276ade.xls
Size

91KB
MD5

c5649a1c0d131de23cfc2fc50d7117b1
SHA1

ed22096d302f8401ec159dcfbcf8d0372c2ff523
SHA256

3a8aa30d14f6aa4b7830f6b8272f0d28d8c90be2ed57b0185cb9abb4ad276ade
SHA512

a44521ac85a0425d56056da806dd0f55709e6f14bf52acb6fb2961bf8c23ea3e54db7d591617dcc47c1e37764746ad5190bf498cc11162774cf97ed7c90e0336
SSDEEP

1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2bCXuZH4gb4CEn9J4Zqcvp:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgi

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://bundlefilm.com/headers/lkfBH3Czw9CjEW07P2/

xlm40.dropper

http://camsanparke.net/wp-content/h2Ja5bwB03hnyfCb/

xlm40.dropper

http://royreid.co.uk/wp-content/dCwG/

xlm40.dropper

https://cs.com.sg/admin/a1lR5wu/

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	4636	1488	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4084	1488	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2240	1488	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2272	1488	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1488	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1488	EXCEL.EXE
1488	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE
1488	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 4636	1488	EXCEL.EXE	98
PID 1488 wrote to memory of 4636	1488	EXCEL.EXE	98
PID 1488 wrote to memory of 4084	1488	EXCEL.EXE	99
PID 1488 wrote to memory of 4084	1488	EXCEL.EXE	99
PID 1488 wrote to memory of 2240	1488	EXCEL.EXE	100
PID 1488 wrote to memory of 2240	1488	EXCEL.EXE	100
PID 1488 wrote to memory of 2272	1488	EXCEL.EXE	101
PID 1488 wrote to memory of 2272	1488	EXCEL.EXE	101

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\3a8aa30d14f6aa4b7830f6b8272f0d28d8c90be2ed57b0185cb9abb4ad276ade.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:1488
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4636
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4084
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2240
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2272

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
5b1cca9f67901c57c355329fe07ab761

SHA1
b7fbfae49ab3e6a388beed270b435e3c12797263

SHA256
cdf25c1bccb250b0faf1ed4c8c7e824d958dd57c86182e8088c1af69dabf6dbc

SHA512
d7d5e4a790b9f7d3c9680312c0a8ff47355704124edbc763a986970aba8e8d5e4d5dfe8a543707a4cd60b27d52b3156c8ff1185b1c9af2122bcfb2f78d34b690

Download Submit
memory/1488-13-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-7-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-4-0x00007FF9EE8F0000-0x00007FF9EE900000-memory.dmp

Filesize
64KB

Download
memory/1488-5-0x00007FF9EE8F0000-0x00007FF9EE900000-memory.dmp

Filesize
64KB

Download
memory/1488-2-0x00007FF9EE8F0000-0x00007FF9EE900000-memory.dmp

Filesize
64KB

Download
memory/1488-8-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-9-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-12-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-0-0x00007FF9EE8F0000-0x00007FF9EE900000-memory.dmp

Filesize
64KB

Download
memory/1488-6-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-3-0x00007FF9EE8F0000-0x00007FF9EE900000-memory.dmp

Filesize
64KB

Download
memory/1488-11-0x00007FF9EBF90000-0x00007FF9EBFA0000-memory.dmp

Filesize
64KB

Download
memory/1488-10-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-14-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-15-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-16-0x00007FF9EBF90000-0x00007FF9EBFA0000-memory.dmp

Filesize
64KB

Download
memory/1488-17-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-18-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-19-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-20-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-30-0x00007FFA2E870000-0x00007FFA2EA65000-memory.dmp

Filesize
2.0MB

Download
memory/1488-31-0x00007FFA2E90D000-0x00007FFA2E90E000-memory.dmp

Filesize
4KB

Download
memory/1488-1-0x00007FFA2E90D000-0x00007FFA2E90E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads