ta505 | 07b8864801ff2a96519e2570bd28ed7bbdf1b69f8aee7ab94508fe5516c90173

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2022 09:00

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General

Target

07b8864801ff2a96519e2570bd28ed7bbdf1b69f8aee7ab94508fe5516c90173.xls
Size

698KB
MD5

7bb9e45da9ee4883ba56fc9b8f886259
SHA1

f2fa0eab12634b9d09a705b6081878de2db70730
SHA256

07b8864801ff2a96519e2570bd28ed7bbdf1b69f8aee7ab94508fe5516c90173
SHA512

912bbab3eec388226d67d5bc241ea2f5b778a99f14f859e511f9449838ea2eb3bf66ad6a7c11e555dcf1ad6d368cb1f3acdb9c98994467edf5030ac3f539e84a

Score

10^/10

ta505 upx

Malware Config

Signatures

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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0008000000022efa-141.dat	upx
behavioral2/memory/4880-142-0x0000000073AA0000-0x0000000073AF2000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
4880	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\{0D7C4BBC-842C-4B85-8728-8D4CE1A81044}\2p.obj:Zone.Identifier	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4880	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4880	EXCEL.EXE
4880	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4880	EXCEL.EXE

Suspicious use of SetWindowsHookEx 22 IoCs

pid	Process
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE
4880	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 4260	4880	EXCEL.EXE	94
PID 4880 wrote to memory of 4260	4880	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\07b8864801ff2a96519e2570bd28ed7bbdf1b69f8aee7ab94508fe5516c90173.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:4880
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:4260

Network

MITRE ATT&CK Enterprise v6

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\Roaming\module_p2.dll

Filesize
182KB

MD5
2164531e455808332d700ea37f9c1ed6

SHA1
611f4b7b0b22d9e5fdc4d20e486656d10e5ebce4

SHA256
ceb8e847a86ac613a7a9453cd98cd3e5d6db29649268d7c231f8197020acc17a

SHA512
05d9a98f166669134f21234b29776580cfb368f74c66d586f8f70877750d8f32814244473cf48ad0d72f76e8c3740ca5b35c4558fa29d1da35dc302266a236e9

Download Submit
memory/4880-135-0x00007FF927050000-0x00007FF927060000-memory.dmp

Filesize
64KB

Download
memory/4880-132-0x00007FF927050000-0x00007FF927060000-memory.dmp

Filesize
64KB

Download
memory/4880-136-0x00007FF927050000-0x00007FF927060000-memory.dmp

Filesize
64KB

Download
memory/4880-137-0x00007FF924B60000-0x00007FF924B70000-memory.dmp

Filesize
64KB

Download
memory/4880-138-0x00007FF924B60000-0x00007FF924B70000-memory.dmp

Filesize
64KB

Download
memory/4880-139-0x000001F5FD3E0000-0x000001F5FD3E4000-memory.dmp

Filesize
16KB

Download
memory/4880-134-0x00007FF927050000-0x00007FF927060000-memory.dmp

Filesize
64KB

Download
memory/4880-133-0x00007FF927050000-0x00007FF927060000-memory.dmp

Filesize
64KB

Download
memory/4880-142-0x0000000073AA0000-0x0000000073AF2000-memory.dmp

Filesize
328KB

Download
memory/4880-143-0x0000000073AA0000-0x0000000073AF2000-memory.dmp

Filesize
328KB

Download
memory/4880-144-0x000001F5850B0000-0x000001F5850B3000-memory.dmp

Filesize
12KB

Download