dridex | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

Resubmissions

21-06-2024 19:37

240621-yca7cszgnd 10

09-06-2024 17:07

13-05-2024 17:36

12-05-2024 17:17

12-05-2024 16:15

10-05-2024 18:05

10-05-2024 17:48

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 17:17

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General

Target

Stealers/Dridex.dll
Size

1.2MB
MD5

304109f9a5c3726818b4c3668fdb71fd
SHA1

2eb804e205d15d314e7f67d503940f69f5dc2ef8
SHA256

af26296c75ff26f7ee865df424522d75366ae3e2e80d7d9e89ef8c9398b0836d
SHA512

cf01fca33392dc40495f4c39eb1fd240b425018c7088ca9782d883bb135b5dd469a11941d0d680a69e881fa95c4147d70fe567aeba7e98ff6adfd5c0ca1a0e01
SSDEEP

24576:ZVHchfFcSTdS1ZikTqpaIJvzSqbY/0Z2ZlECMNXkTlzvmJL8:ZV8hf6STw1ZlQauvzSq01ICe6zvm

Score

10^/10

dridex botnet evasion payload persistence trojan

Malware Config

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Dridex Shellcode 1 IoCs
Detects Dridex Payload shellcode injected in Explorer process.
botnet payload

Processes:

resource yara_rule

behavioral22/memory/3532-4-0x0000000002850000-0x0000000002851000-memory.dmp dridex_stager_shellcode
Executes dropped EXE 3 IoCs

Processes:

SystemPropertiesDataExecutionPrevention.exeMoUsoCoreWorker.exeperfmon.exe

pid process

624 SystemPropertiesDataExecutionPrevention.exe
2004 MoUsoCoreWorker.exe
2044 perfmon.exe
Loads dropped DLL 3 IoCs

Processes:

SystemPropertiesDataExecutionPrevention.exeMoUsoCoreWorker.exeperfmon.exe

pid process

624 SystemPropertiesDataExecutionPrevention.exe
2004 MoUsoCoreWorker.exe
2044 perfmon.exe

resource	yara_rule
behavioral22/memory/3532-4-0x0000000002850000-0x0000000002851000-memory.dmp	dridex_stager_shellcode

pid	process
624	SystemPropertiesDataExecutionPrevention.exe
2004	MoUsoCoreWorker.exe
2044	perfmon.exe

pid	process
624	SystemPropertiesDataExecutionPrevention.exe
2004	MoUsoCoreWorker.exe
2044	perfmon.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Iwctvdcrnln = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Office\\CVxo69b3B\\MoUsoCoreWorker.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

perfmon.exerundll32.exeSystemPropertiesDataExecutionPrevention.exeMoUsoCoreWorker.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	perfmon.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SystemPropertiesDataExecutionPrevention.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	MoUsoCoreWorker.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
4044	rundll32.exe
4044	rundll32.exe
4044	rundll32.exe
4044	rundll32.exe
4044	rundll32.exe
4044	rundll32.exe
3532
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3532

Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

3532

pid	process
3532

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	target process
PID 3532 wrote to memory of 1488	3532	SystemPropertiesDataExecutionPrevention.exe
PID 3532 wrote to memory of 1488	3532	SystemPropertiesDataExecutionPrevention.exe
PID 3532 wrote to memory of 624	3532	SystemPropertiesDataExecutionPrevention.exe
PID 3532 wrote to memory of 624	3532	SystemPropertiesDataExecutionPrevention.exe
PID 3532 wrote to memory of 4556	3532	MoUsoCoreWorker.exe
PID 3532 wrote to memory of 4556	3532	MoUsoCoreWorker.exe
PID 3532 wrote to memory of 2004	3532	MoUsoCoreWorker.exe
PID 3532 wrote to memory of 2004	3532	MoUsoCoreWorker.exe
PID 3532 wrote to memory of 636	3532	perfmon.exe
PID 3532 wrote to memory of 636	3532	perfmon.exe
PID 3532 wrote to memory of 2044	3532	perfmon.exe
PID 3532 wrote to memory of 2044	3532	perfmon.exe

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

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Stealers\Dridex.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:4044

C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe
1⤵
PID:1488

C:\Users\Admin\AppData\Local\Trdxzmfuf\SystemPropertiesDataExecutionPrevention.exe
C:\Users\Admin\AppData\Local\Trdxzmfuf\SystemPropertiesDataExecutionPrevention.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:624

C:\Windows\system32\MoUsoCoreWorker.exe
C:\Windows\system32\MoUsoCoreWorker.exe
1⤵
PID:4556

C:\Users\Admin\AppData\Local\UutdpO4I\MoUsoCoreWorker.exe
C:\Users\Admin\AppData\Local\UutdpO4I\MoUsoCoreWorker.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2004

C:\Windows\system32\perfmon.exe
C:\Windows\system32\perfmon.exe
1⤵
PID:636

C:\Users\Admin\AppData\Local\NpORxIYw5\perfmon.exe
C:\Users\Admin\AppData\Local\NpORxIYw5\perfmon.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2044

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\NpORxIYw5\credui.dll
Filesize
1.2MB

MD5
ee6949bde7b37921ffdb5745a5b2f77d

SHA1
726018b70977a57480db37966f6469268714260a

SHA256
5ba918f95e71a70928b63329fdf4f9df97b9fd8bdb15679f8344faeba097a6c0

SHA512
a8486776c956ae00e2580f69619ad34eaf44c8818a2193d76f89c400695016c231130af02fbaf776879d0f8c501ecaca5535c787dae329e7952df99d08f5b050

Download Submit
C:\Users\Admin\AppData\Local\NpORxIYw5\perfmon.exe
Filesize
177KB

MD5
d38aa59c3bea5456bd6f95c73ad3c964

SHA1
40170eab389a6ba35e949f9c92962646a302d9ef

SHA256
5f041cff346fb37e5c5c9dab3c1272c76f8b5f579205170e97d2248d04a4ea0c

SHA512
59fa552a46e5d6237c7244b03d09d60e9489217b4319a212e822c73fe1f31a81837cb906ae7da92072bd3d9263fe0b967e073110ba81da3a90126f25115fff68

Download Submit
C:\Users\Admin\AppData\Local\Trdxzmfuf\SYSDM.CPL
Filesize
1.2MB

MD5
871f54674a5f184d6819142f096df9a3

SHA1
b36af93fb47ae742ca9563b414ceb6e4d54cc60a

SHA256
2c3018181ab364f2214385d4047e61474ef815a9019237bca2d5e5500531a7a3

SHA512
52a9429270a5dd2f1eb30b8b385e20b85f53701ecc15159311f3867971329fc035d8139c4758423fbc6369af7b943538e7fb116f456982bce7bac489c016c439

Download Submit
C:\Users\Admin\AppData\Local\Trdxzmfuf\SystemPropertiesDataExecutionPrevention.exe
Filesize
82KB

MD5
de58532954c2704f2b2309ffc320651d

SHA1
0a9fc98f4d47dccb0b231edf9a63309314f68e3b

SHA256
1f810658969560f6e7d7a14f71d1196382e53b984ca190fa9b178ac4a32acfb3

SHA512
d4d57cc30d9079f4e9193ba42631e8e53d86b22e9c655d7a8c25e5be0e5e1d6dfff4714ddc23e3e392809d623b4f8d43c63893f74c325fc77459ac03c7a451ed

Download Submit
C:\Users\Admin\AppData\Local\UutdpO4I\MoUsoCoreWorker.exe
Filesize
1.6MB

MD5
47c6b45ff22b73caf40bb29392386ce3

SHA1
7e29a8d98fbb9b02d3d22e3576f4fd61ab50ffe9

SHA256
cbccb642725edb42e749e26ded68a16b3aa20e291a1a7793a2d4efebb75f99c0

SHA512
c919ab84a497616e7969d58c251f4e6efc337b41ef6956864b86d66ae1437294c124232fec54433eab3a6518ed529f8445dd0b23706b2f42f3fa42e69711f331

Download Submit
C:\Users\Admin\AppData\Local\UutdpO4I\XmlLite.dll
Filesize
1.2MB

MD5
90f1554a5e5cb4bc7c0b67920d773388

SHA1
172865fb1752da3d44a062812e7393cebec158a0

SHA256
bc368dfcc96d113046dc8b71848b85a74a15477ff1d44717b93fc3224a5519db

SHA512
86b7c5d09ba78ff7d65c9e3ab2c27874247bd7191df264e72176aa97a6c72273bcd2c185487d19dacd350462c511400d1d0cb9a7cc119b7d16b0cb3a5a2a0207

Download Submit
C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Puokv.lnk
Filesize
967B

MD5
9227ecf3214e09c7e388a43eb02a3c37

SHA1
08a323871c9b8878bff7b62ce0dd8d67425c9123

SHA256
f1ffb184c61dd3323bbbd38a4b8b6e14528b732416a20c52375ae33464fcdc87

SHA512
2c935a51f18a931246e30c55260ed6c87c6c7212687647185fa18cf086aee1dd6a7dd8f032f8698913ee70cb1b65e78596134142db4b19e2f309ea3fef677b07

Download Submit
memory/624-49-0x00000146DCF50000-0x00000146DCF57000-memory.dmp

Filesize
28KB

Download
memory/624-46-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/624-52-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2004-69-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2004-63-0x00000224002B0000-0x00000224002B7000-memory.dmp

Filesize
28KB

Download
memory/2044-83-0x00000152EF380000-0x00000152EF387000-memory.dmp

Filesize
28KB

Download
memory/2044-86-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3532-29-0x00000000008D0000-0x00000000008D7000-memory.dmp

Filesize
28KB

Download
memory/3532-14-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-7-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-36-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-6-0x00007FF977DFA000-0x00007FF977DFB000-memory.dmp

Filesize
4KB

Download
memory/3532-9-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-10-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-11-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-13-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-8-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-16-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-4-0x0000000002850000-0x0000000002851000-memory.dmp

Filesize
4KB

Download
memory/3532-30-0x00007FF978030000-0x00007FF978040000-memory.dmp

Filesize
64KB

Download
memory/3532-25-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-15-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/3532-12-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/4044-0-0x000001597EC90000-0x000001597EC97000-memory.dmp

Filesize
28KB

Download
memory/4044-39-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/4044-1-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download