2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
18-11-2023 09:13

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General

Target

2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
Size

3.9MB
MD5

252ad3e2fe53a734995ddf9fe46b7d3a
SHA1

127664f7658642655f8560e0c0c5a21e2f0f95ca
SHA256

2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb
SHA512

ef9493ba0c15dde6ee9db9f2c1dc7d70304e7cd46f37d8611be3f0781e27e330bfb46b963bbc30742ecdeb41f5f621eada977b34a9b6a5f591d07333b994ccf3
SSDEEP

98304:K1X29SacJCl3Bw95kLLvE5Qb54Q1CgUi+PSOs0/4lf:K1ySzJk3Bw9YvE+b6s2J0Nf

Score

10^/10

evasion themida trojan upx

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	NssWB1pY.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe

Executes dropped EXE 1 IoCs

pid	Process
4564	NssWB1pY.exe

Themida packer 12 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/1068-0-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-1-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-2-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-3-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-4-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-5-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-6-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-7-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-8-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-9-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-10-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida
behavioral2/memory/1068-17-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp	themida

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4564-18-0x0000000000400000-0x0000000000558000-memory.dmp	upx
behavioral2/files/0x0008000000022cd8-16.dat	upx
behavioral2/files/0x0008000000022cd8-54.dat	upx
behavioral2/memory/4564-59-0x0000000000400000-0x0000000000558000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe
4564	NssWB1pY.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4564	NssWB1pY.exe
4564	NssWB1pY.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 4564	1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe	96
PID 1068 wrote to memory of 4564	1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe	96
PID 1068 wrote to memory of 4564	1068	2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe	96
PID 4564 wrote to memory of 1380	4564	NssWB1pY.exe	99
PID 4564 wrote to memory of 1380	4564	NssWB1pY.exe	99
PID 4564 wrote to memory of 1380	4564	NssWB1pY.exe	99

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	NssWB1pY.exe

C:\Users\Admin\AppData\Local\Temp\2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe
"C:\Users\Admin\AppData\Local\Temp\2f12b3d95d478665c110fe873f869260936d7fb81bca871b72f67f3a62f1aaeb.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Users\Public\Downloads\3D5zv7nl\NssWB1pY.exe
  "C:\Users\Public\Downloads\3D5zv7nl\NssWB1pY.exe"
  2⤵
  - UAC bypass
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4564
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c echo.>c:\xxxx.ini
    3⤵
    PID:1380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_tu2_temp_0\IRIMG3.JPG

Filesize
6KB

MD5
e39405e85e09f64ccde0f59392317dd3

SHA1
9c76db4b3d8c7972e7995ecfb1e3c47ee94fd14b

SHA256
cfd9677e1c0e10b1507f520c4ecd40f68db78154c0d4e6563403d540f3bf829f

SHA512
6733f330145b48d23c023c664090f4f240e9bbeb8368b486c8ee8682ec6a930b73275e24075648d1aa7e01db1ec7b7e259286917a006ba9af8fb7cba3439070a

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_tu2_temp_0\IRIMG4.JPG

Filesize
36KB

MD5
f6bf82a293b69aa5b47d4e2de305d45a

SHA1
4948716616d4bbe68be2b4c5bf95350402d3f96f

SHA256
6a9368cdd7b3ff9b590e206c3536569bc45c338966d0059784959f73fe6281e0

SHA512
edf0f3ee60a620cf886184c1014f38d0505aac9e3703d61d7074cfb27d6922f80e570d1a3891593606a09f1296a88c8770445761c11c390a99a5341ee56478aa

Download Submit
C:\Users\Public\Downloads\3D5zv7nl\Edge.jpg

Filesize
358KB

MD5
df6d4696238a68f2759155507dde18c3

SHA1
478d534b6994a730043461b607b6dd4bb024fc6d

SHA256
4c3bf5a864812d7175c4845ca67ae1736f2803428cee564ce4151995bf3b5538

SHA512
3b49fa339ef8833684896574d56b220a973d44d3c405dbbda7893ce2763a4a145ec20a29e16cc733439a24403f1ecd220812fab9bb6fc742e77f439a79635d69

Download Submit
C:\Users\Public\Downloads\3D5zv7nl\NssWB1pY.dat

Filesize
132KB

MD5
759bba119e8d292dcaaec9f4fa3899a7

SHA1
1a3d9303f061638adec61f11d3009731313eaebd

SHA256
1c0c43ca902639a02ce67f0ea4d526a074daef14d46d23c734801c2988b1bd15

SHA512
b2ee279afccb5b6029acd58b24d05a11be99227dffa781b878cff142d3cbad74544bd0caa3798794f17564ba60d183cb40aef192f2fd61a4669805873bc6ed3c

Download Submit
C:\Users\Public\Downloads\3D5zv7nl\NssWB1pY.exe

Filesize
525KB

MD5
59b28d897cece1afb2bfd227aa29ecda

SHA1
fc2370cecbaa6d5aa6e164f4dd9867f00df15827

SHA256
5b3e7582653e6ff9b49962b03aa054962ef1126cb2af14f49ff5db1684dc9e70

SHA512
ce1b2443654ccc7a33d20d348ebb3286e6d6e1d8670dc0eb92c1488d1c7cd220b43d205ae54e633381f1a1c3351a7f1df35093c3d7ca3ff0d7c77cad46bdfc2a

Download Submit
C:\Users\Public\Downloads\3D5zv7nl\NssWB1pY.exe

Filesize
525KB

MD5
59b28d897cece1afb2bfd227aa29ecda

SHA1
fc2370cecbaa6d5aa6e164f4dd9867f00df15827

SHA256
5b3e7582653e6ff9b49962b03aa054962ef1126cb2af14f49ff5db1684dc9e70

SHA512
ce1b2443654ccc7a33d20d348ebb3286e6d6e1d8670dc0eb92c1488d1c7cd220b43d205ae54e633381f1a1c3351a7f1df35093c3d7ca3ff0d7c77cad46bdfc2a

Download Submit
C:\Users\Public\Downloads\3D5zv7nl\edge.xml

Filesize
84KB

MD5
24bcaf0cb50a6e93450601763525359e

SHA1
6147d2c6e19f0066a3ab25c06de76b5752b669b7

SHA256
5852114c4735d09db08b56ca9df16a8d1b9fce2baefc1e01d24e8b667b3abcd8

SHA512
d8f697ca8c87acf5222a2c3fcd493df53d0b9965b0e6718ddec0c06e6247e81567732a4327c5bff45579ab8762d7b4000cb052b5dd782d5f8cefe54de901d982

Download Submit
memory/1068-8-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-7-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-9-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-10-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-17-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-0-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-6-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-5-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-4-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-3-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-2-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/1068-1-0x00007FF6443B0000-0x00007FF644D29000-memory.dmp

Filesize
9.5MB

Download
memory/4564-18-0x0000000000400000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/4564-42-0x00000000037B0000-0x00000000037C7000-memory.dmp

Filesize
92KB

Download
memory/4564-45-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download
memory/4564-40-0x0000000002C60000-0x0000000002C61000-memory.dmp

Filesize
4KB

Download
memory/4564-59-0x0000000000400000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/4564-61-0x00000000037B0000-0x00000000037C7000-memory.dmp

Filesize
92KB

Download