ta505 | 487f4dd9bdbe94a9cf1a04a8fdec19f16f86864d05d06f0511544b3ff68c850c

Analysis

max time kernel
146s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2025, 06:43

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General

Target

virusshare/1/VirusShare_0fea640a7da27f365b3675f73626b9c9.xls
Size

937KB
MD5

0fea640a7da27f365b3675f73626b9c9
SHA1

fd4825f244e9c145486cb6930ad05695b9972668
SHA256

64af94592f6707505fa6f42b58776c3635706a414e6362a92f707df84627679c
SHA512

c9a10288762f3f5a3fdff17f8dd8560e7a884f1b83f405c2e85c6c86e42f69a30841c13aa0f2ecfc55aed42995d7aeb8fe40415e423ed0a306d2e7d00883dfbf
SSDEEP

24576:h3zS0aqbCrxgFhFSQVB5DjDLG6/8otVBTN9s:K9Fo5VLDLGwTBT

Score

10^/10

ta505

Malware Config

Extracted

Language

xlm4.0

Source

Signatures

TA505
Cybercrime group active since 2015, responsible for families like Dridex and Locky.
ta505
Ta505 family
ta505

Loads dropped DLL 1 IoCs

pid	Process
1116	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 opened for modification	C:\Users\Admin\AppData\Local\Temp\{FD8E9C6F-19EC-4268-A16B-E112F6ECC3BD}\318A50C9.tmp:Zone.Identifier	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1116	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1116	EXCEL.EXE
1116	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1116	EXCEL.EXE

Suspicious use of SetWindowsHookEx 30 IoCs

pid	Process
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 2968	1116	EXCEL.EXE	91
PID 1116 wrote to memory of 2968	1116	EXCEL.EXE	91

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\virusshare\1\VirusShare_0fea640a7da27f365b3675f73626b9c9.xls"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2968

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\xcopy00.xlsx

Filesize
628KB

MD5
0181ef6e5544c2b7fe926ef0502ade55

SHA1
ed1022b515d834cba3f72dc8150d816a6c1173ad

SHA256
509f6ea70030cc63e9d6eeba2e541f12c90e4f304e1b6a06d40f139524d72fa5

SHA512
53b6d85c3602dbfc330ee52d5bd794a11d7fe35c442bdc54809e8229b189e44b02ad6710d83b47668cea4addc7d329ba0fca9d953334f7aa56542d416a193c22

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\contract_.dll

Filesize
234KB

MD5
4224c05eb24238e24a124eecee907cec

SHA1
551979d132b3e45aaab7ea8e18441b303f49a74a

SHA256
6d5c207c998990f1e7c527971dfe0eb6d2b21fca136d616e6e211019d1c77698

SHA512
ef4b9f06fcdd091ac818974cd777a6fdf5cd88a70f8f5fad33173ae70905b8487d60acb4af2ddb6c73d2789085f28ec1134e5efdc6a9659b0417d8fa350e7638

Download Submit
memory/1116-49-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-53-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-2-0x00007FFF9D910000-0x00007FFF9D920000-memory.dmp

Filesize
64KB

Download
memory/1116-6-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-7-0x00007FFF9D910000-0x00007FFF9D920000-memory.dmp

Filesize
64KB

Download
memory/1116-5-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-9-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-10-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-11-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-78-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-12-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-14-0x00007FFF9B700000-0x00007FFF9B710000-memory.dmp

Filesize
64KB

Download
memory/1116-8-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-15-0x00007FFF9B700000-0x00007FFF9B710000-memory.dmp

Filesize
64KB

Download
memory/1116-17-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-16-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-19-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-18-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-3-0x00007FFF9D910000-0x00007FFF9D920000-memory.dmp

Filesize
64KB

Download
memory/1116-1-0x00007FFF9D910000-0x00007FFF9D920000-memory.dmp

Filesize
64KB

Download
memory/1116-13-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-77-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-76-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-85-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-4-0x00007FFF9D910000-0x00007FFF9D920000-memory.dmp

Filesize
64KB

Download
memory/1116-114-0x00007FFFDD92D000-0x00007FFFDD92E000-memory.dmp

Filesize
4KB

Download
memory/1116-115-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-120-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-209-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-0-0x00007FFFDD92D000-0x00007FFFDD92E000-memory.dmp

Filesize
4KB

Download
memory/1116-215-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-216-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-217-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-219-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-218-0x000000006D680000-0x000000006D6D2000-memory.dmp

Filesize
328KB

Download
memory/1116-223-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-224-0x00007FFFDD890000-0x00007FFFDDA85000-memory.dmp

Filesize
2.0MB

Download
memory/1116-236-0x000000006D680000-0x000000006D6D2000-memory.dmp

Filesize
328KB

Download