d58c6bfb7dac50a0b5d8604180c31d6192b628d274c329d0d5d54afb0589c6a4

Analysis

max time kernel
143s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2023 13:21

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General

Target

eef8e729667bcee15a2bb0914868f36a.exe
Size

6.8MB
MD5

eef8e729667bcee15a2bb0914868f36a
SHA1

e9d6bf8fd5361b3f3a313b1b44fb757c26662ba3
SHA256

d58c6bfb7dac50a0b5d8604180c31d6192b628d274c329d0d5d54afb0589c6a4
SHA512

ac41cc65f69bcce246e98dbf8c42bd959d734c7528699d8c16502fab70fc3aef650202306085b6357673928a4e33bdc2d6ab1aab79cfcc7b2c0fb4c243931ee7
SSDEEP

196608:sQxvroiknVp4TygzbPu/33wnH56sYiFP3+m6bDdWpFGJThDlta6aU:FoiknVpK+/3gH5wiFPObwpF4Tdha

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:

yolden.exeDpEditor.exe

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

yolden.exeDpEditor.exe

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

eef8e729667bcee15a2bb0914868f36a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	eef8e729667bcee15a2bb0914868f36a.exe

Executes dropped EXE 2 IoCs

Processes:

yolden.exeDpEditor.exe

pid process

400 yolden.exe
4352 DpEditor.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
400	yolden.exe
4352	DpEditor.exe

Themida packer 17 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe	themida
C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe	themida
behavioral2/memory/400-250-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/400-251-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/400-252-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/400-253-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/400-254-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/400-255-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe	themida
behavioral2/memory/400-259-0x0000000000FA0000-0x00000000016F9000-memory.dmp	themida
behavioral2/memory/4352-262-0x0000000000890000-0x0000000000FE9000-memory.dmp	themida
behavioral2/memory/4352-263-0x0000000000890000-0x0000000000FE9000-memory.dmp	themida
behavioral2/memory/4352-264-0x0000000000890000-0x0000000000FE9000-memory.dmp	themida
behavioral2/memory/4352-265-0x0000000000890000-0x0000000000FE9000-memory.dmp	themida
behavioral2/memory/4352-266-0x0000000000890000-0x0000000000FE9000-memory.dmp	themida
behavioral2/memory/4352-267-0x0000000000890000-0x0000000000FE9000-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:

eef8e729667bcee15a2bb0914868f36a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	eef8e729667bcee15a2bb0914868f36a.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	eef8e729667bcee15a2bb0914868f36a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

eef8e729667bcee15a2bb0914868f36a.exeyolden.exeDpEditor.exe

pid process

4472 eef8e729667bcee15a2bb0914868f36a.exe
4472 eef8e729667bcee15a2bb0914868f36a.exe
400 yolden.exe
4352 DpEditor.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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:

eef8e729667bcee15a2bb0914868f36a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	eef8e729667bcee15a2bb0914868f36a.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	eef8e729667bcee15a2bb0914868f36a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	eef8e729667bcee15a2bb0914868f36a.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3720 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

DpEditor.exe

pid process

4352 DpEditor.exe

pid	process
3720	timeout.exe

pid	process
4352	DpEditor.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

eef8e729667bcee15a2bb0914868f36a.exeyolden.exeDpEditor.exe

pid	process
4472	eef8e729667bcee15a2bb0914868f36a.exe
4472	eef8e729667bcee15a2bb0914868f36a.exe
4472	eef8e729667bcee15a2bb0914868f36a.exe
4472	eef8e729667bcee15a2bb0914868f36a.exe
400	yolden.exe
400	yolden.exe
4352	DpEditor.exe
4352	DpEditor.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

eef8e729667bcee15a2bb0914868f36a.execmd.execmd.exeyolden.exe

description	pid	process	target process
PID 4472 wrote to memory of 3436	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 4472 wrote to memory of 3436	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 4472 wrote to memory of 3436	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 3436 wrote to memory of 400	3436	cmd.exe	yolden.exe
PID 3436 wrote to memory of 400	3436	cmd.exe	yolden.exe
PID 3436 wrote to memory of 400	3436	cmd.exe	yolden.exe
PID 4472 wrote to memory of 4964	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 4472 wrote to memory of 4964	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 4472 wrote to memory of 4964	4472	eef8e729667bcee15a2bb0914868f36a.exe	cmd.exe
PID 4964 wrote to memory of 3720	4964	cmd.exe	timeout.exe
PID 4964 wrote to memory of 3720	4964	cmd.exe	timeout.exe
PID 4964 wrote to memory of 3720	4964	cmd.exe	timeout.exe
PID 400 wrote to memory of 4352	400	yolden.exe	DpEditor.exe
PID 400 wrote to memory of 4352	400	yolden.exe	DpEditor.exe
PID 400 wrote to memory of 4352	400	yolden.exe	DpEditor.exe

C:\Users\Admin\AppData\Local\Temp\eef8e729667bcee15a2bb0914868f36a.exe
"C:\Users\Admin\AppData\Local\Temp\eef8e729667bcee15a2bb0914868f36a.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4472

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:3436

C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe
C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe
3⤵
- 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: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:400

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:4352

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\eef8e729667bcee15a2bb0914868f36a.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4964

C:\Windows\SysWOW64\timeout.exe
timeout -t 5
3⤵
- Delays execution with timeout.exe
PID:3720

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\8DC4.tmp
Filesize
32B

MD5
6bb6e374b5dbd021622648b4d4e9afc7

SHA1
df356bb84780e332c960769d552f67d1f5221cce

SHA256
6546a2ec37419190b5f256f2c09efd90f8dd11fe98e5ae4521f8e07ecd64a2aa

SHA512
42b05356304dbbf2dd1ba7c7bc8dd2fcfc908d80fcd7c25771a3722ac946fd04575591d530e802799f8c17d9622db361f76b69c3985fd1ee63fce38777938644

Download Submit
C:\Users\Admin\AppData\Local\Temp\901A.tmp
Filesize
71KB

MD5
92d24961d2ebaacf1ace5463dfc9930d

SHA1
99ffaf6904ab616c33a37ce01d383e4a493df335

SHA256
9013688dec264c615178e151c2eb5f0b2eb9fe8cfad867b311d8581d921c73f3

SHA512
77598c77f219ab5234b8b84bcfe873f40e7464b224fac3c8568b300d3f2563f7ef5ad9ec5cccc0d719e7d3e489a164b04b6b36316196afea0b8051de3c751cc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\9739.tmp
Filesize
2KB

MD5
dce9b749d38fdc247ab517e8a76e6102

SHA1
d6c5b6548e1a3da3326bd097c50c49fc7906be3f

SHA256
5087b8c7f2cecceac61d7bd02b939888cf2cc5a452676f28fd5c076eb1ae7ea7

SHA512
56c276f0a070da656c98520aa720994d78f1bf0bbb085a5f6fb4fd18fed2bbba1eb8e97b54d58eaa9a978d21d64678170f49c020feb19d8545d158a2d8d58446

Download Submit
C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\yolden.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
C:\Users\Admin\AppData\Roaming\2F433E85C00A43F3\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
C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
Filesize
2.9MB

MD5
a7e8578e9d6b148ab0672940de0c07ce

SHA1
b37e6c687f63c139f8268e56122ab70c53ce3a23

SHA256
e575b5898027f553ecfbf897730712c833b3b1af02796e6a82d440a46d0042ed

SHA512
d6782e6645b4fae43330632ef24fc23b399789ad8e13ec6f105da2a76c411886111a87381a99d10c3c1e556c0da45fb742805ca396c3ab5b64f6c9975e9843c4

Download Submit
memory/400-250-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-251-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-259-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-255-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-254-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-253-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/400-252-0x0000000000FA0000-0x00000000016F9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-262-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-263-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-267-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-266-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-265-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4352-264-0x0000000000890000-0x0000000000FE9000-memory.dmp

Filesize
7.3MB

Download
memory/4472-138-0x0000000002D00000-0x0000000002D01000-memory.dmp

Filesize
4KB

Download
memory/4472-134-0x00000000010C0000-0x00000000010C1000-memory.dmp

Filesize
4KB

Download
memory/4472-140-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/4472-141-0x0000000000400000-0x0000000000F53000-memory.dmp

Filesize
11.3MB

Download
memory/4472-135-0x00000000011E0000-0x00000000011E1000-memory.dmp

Filesize
4KB

Download
memory/4472-139-0x0000000002D10000-0x0000000002D11000-memory.dmp

Filesize
4KB

Download
memory/4472-133-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/4472-137-0x0000000002CF0000-0x0000000002CF1000-memory.dmp

Filesize
4KB

Download
memory/4472-136-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download