d2c445a8b7c0f17493dc52fdb23ca0d21231d578d6dd3814f24b2bbb5ddd7c40

Analysis

max time kernel
150s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-03-2023 09:26

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General

Target

85caf92b6709de24e1c39c82c32395c1.exe
Size

6.3MB
MD5

85caf92b6709de24e1c39c82c32395c1
SHA1

20f570db9cc7d3b7d70ce155e6631d4305e2d97f
SHA256

d2c445a8b7c0f17493dc52fdb23ca0d21231d578d6dd3814f24b2bbb5ddd7c40
SHA512

ea8c0a635adc94fa3dcc17c638123de197fb2aadb8bf0fa1e03c91d3345d80b91e2069671a586907495c52d7e6d4449e0e060e5ba8ab8fa44f0979715183d9b4
SSDEEP

196608:V3i0h4AEWKrehfhTll3MTO2JnnJUaHYppfMn/8sEuF:Bxh4hwlhRyTOCeXMx

Score

9^/10

discovery evasion spyware stealer themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

DpEditor.exeyolden.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	DpEditor.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	yolden.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

DpEditor.exeyolden.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DpEditor.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	yolden.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	yolden.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DpEditor.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1612 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

yolden.exeDpEditor.exe

pid process

1200 yolden.exe
1748 DpEditor.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exeyolden.exe

pid process

1368 cmd.exe
1200 yolden.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1612	cmd.exe

pid	process
1200	yolden.exe
1748	DpEditor.exe

pid	process
1368	cmd.exe
1200	yolden.exe

Themida packer 18 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe	themida
\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe	themida
C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe	themida
behavioral1/memory/1200-141-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
behavioral1/memory/1200-142-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
behavioral1/memory/1200-143-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
behavioral1/memory/1200-144-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
behavioral1/memory/1200-145-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
behavioral1/memory/1200-146-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral1/memory/1200-151-0x0000000000AA0000-0x00000000011F9000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral1/memory/1748-153-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida
behavioral1/memory/1748-154-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida
behavioral1/memory/1748-155-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida
behavioral1/memory/1748-156-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida
behavioral1/memory/1748-157-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida
behavioral1/memory/1748-158-0x0000000000D50000-0x00000000014A9000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

yolden.exeDpEditor.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	yolden.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DpEditor.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

85caf92b6709de24e1c39c82c32395c1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	85caf92b6709de24e1c39c82c32395c1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	85caf92b6709de24e1c39c82c32395c1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

yolden.exeDpEditor.exe

pid process

1200 yolden.exe
1748 DpEditor.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1200	yolden.exe
1748	DpEditor.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

Processes:

85caf92b6709de24e1c39c82c32395c1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	85caf92b6709de24e1c39c82c32395c1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	85caf92b6709de24e1c39c82c32395c1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	85caf92b6709de24e1c39c82c32395c1.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1600 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

DpEditor.exe

pid process

1748 DpEditor.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

85caf92b6709de24e1c39c82c32395c1.exeyolden.exeDpEditor.exe

pid process

1148 85caf92b6709de24e1c39c82c32395c1.exe
1148 85caf92b6709de24e1c39c82c32395c1.exe
1200 yolden.exe
1748 DpEditor.exe

pid	process
1600	timeout.exe

pid	process
1748	DpEditor.exe

pid	process
1148	85caf92b6709de24e1c39c82c32395c1.exe
1148	85caf92b6709de24e1c39c82c32395c1.exe
1200	yolden.exe
1748	DpEditor.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

85caf92b6709de24e1c39c82c32395c1.execmd.execmd.exeyolden.exe

description	pid	process	target process
PID 1148 wrote to memory of 1368	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1368	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1368	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1368	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1368 wrote to memory of 1200	1368	cmd.exe	yolden.exe
PID 1368 wrote to memory of 1200	1368	cmd.exe	yolden.exe
PID 1368 wrote to memory of 1200	1368	cmd.exe	yolden.exe
PID 1368 wrote to memory of 1200	1368	cmd.exe	yolden.exe
PID 1148 wrote to memory of 1612	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1612	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1612	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1148 wrote to memory of 1612	1148	85caf92b6709de24e1c39c82c32395c1.exe	cmd.exe
PID 1612 wrote to memory of 1600	1612	cmd.exe	timeout.exe
PID 1612 wrote to memory of 1600	1612	cmd.exe	timeout.exe
PID 1612 wrote to memory of 1600	1612	cmd.exe	timeout.exe
PID 1612 wrote to memory of 1600	1612	cmd.exe	timeout.exe
PID 1200 wrote to memory of 1748	1200	yolden.exe	DpEditor.exe
PID 1200 wrote to memory of 1748	1200	yolden.exe	DpEditor.exe
PID 1200 wrote to memory of 1748	1200	yolden.exe	DpEditor.exe
PID 1200 wrote to memory of 1748	1200	yolden.exe	DpEditor.exe

C:\Users\Admin\AppData\Local\Temp\85caf92b6709de24e1c39c82c32395c1.exe
"C:\Users\Admin\AppData\Local\Temp\85caf92b6709de24e1c39c82c32395c1.exe"
1⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368

C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
"C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
4⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:1748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\85caf92b6709de24e1c39c82c32395c1.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\SysWOW64\timeout.exe
timeout -t 5
3⤵
- Delays execution with timeout.exe
PID:1600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2025.tmp
Filesize
32B

MD5
48255136fc205998b4ebbe6f72b5cdd0

SHA1
c6f2c7fdd75a999a61ddfb5b4923d6a0dad917b1

SHA256
00523df8a35803806212867d9f6ab89d17a1bfdd3aef5fbb1dc10fcd6faa114c

SHA512
c74a7e214f93d124aed393e00f720ac91ca46328f4edf710b26235145b676003261943e4779acbc52ef14667a78636968c04c1065ac5cc70ba9f54d6ab0226de

Download Submit
C:\Users\Admin\AppData\Local\Temp\20D5.tmp
Filesize
71KB

MD5
6082dd13ad8102d17f9db9cd07600e97

SHA1
39becc88cea914d843b3c5521038907f2f2f4e71

SHA256
40a3f938c8c1eb929771c444d5f8887c42c7cde6281690e2071a2593ba92e48a

SHA512
b7d5c716b6339b3138492c8b0cf4c9540a8d8224f9d5e72e34ceab442bdfa9c855473bbed68a489851f019461e1b1f9d86baf067be556c67b948c930899d3c1e

Download Submit
C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
C:\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
\Users\Admin\AppData\Roaming\C7623F2CC2ED3BDA\yolden.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
memory/1148-57-0x0000000000400000-0x0000000000E35000-memory.dmp

Filesize
10.2MB

Download
memory/1148-56-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1148-55-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1148-54-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1200-146-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-143-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-144-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-145-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-142-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-141-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1200-151-0x0000000000AA0000-0x00000000011F9000-memory.dmp

Filesize
7.3MB

Download
memory/1368-140-0x0000000002040000-0x0000000002799000-memory.dmp

Filesize
7.3MB

Download
memory/1748-153-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download
memory/1748-154-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download
memory/1748-155-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download
memory/1748-156-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download
memory/1748-157-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download
memory/1748-158-0x0000000000D50000-0x00000000014A9000-memory.dmp

Filesize
7.3MB

Download