dridex | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

Resubmissions

12-09-2024 02:23

240912-cvfznswere 10

04-09-2024 00:09

240904-afvheascla 10

03-09-2024 18:57

240903-xl8csavfrb 10

03-09-2024 18:12

240903-ws828asgnm 10

Analysis

max time kernel
149s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 18:12

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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
behavioral21/memory/1160-5-0x0000000002D10000-0x0000000002D11000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

Processes:

BitLockerWizard.exeirftp.exeSystemPropertiesProtection.exe

pid process

3036 BitLockerWizard.exe
1600 irftp.exe
2896 SystemPropertiesProtection.exe
Loads dropped DLL 7 IoCs

Processes:

BitLockerWizard.exeirftp.exeSystemPropertiesProtection.exe

pid process

1160
3036 BitLockerWizard.exe
1160
1600 irftp.exe
1160
2896 SystemPropertiesProtection.exe
1160

pid	process
3036	BitLockerWizard.exe
1600	irftp.exe
2896	SystemPropertiesProtection.exe

pid	process
1160
3036	BitLockerWizard.exe
1160
1600	irftp.exe
1160
2896	SystemPropertiesProtection.exe
1160

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rcoehfpd = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\IOuP0fc2IGv\\irftp.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

rundll32.exeBitLockerWizard.exeirftp.exeSystemPropertiesProtection.exe

description	ioc	process
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	BitLockerWizard.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	irftp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SystemPropertiesProtection.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2196	rundll32.exe
2196	rundll32.exe
2196	rundll32.exe
1160
1160
1160
1160
1160
1160
1160
1160
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1160
1160
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1160
1160
1160
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1160
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1160
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1160

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

description	pid	target process
PID 1160 wrote to memory of 1652	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 1652	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 1652	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 3036	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 3036	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 3036	1160	BitLockerWizard.exe
PID 1160 wrote to memory of 336	1160	irftp.exe
PID 1160 wrote to memory of 336	1160	irftp.exe
PID 1160 wrote to memory of 336	1160	irftp.exe
PID 1160 wrote to memory of 1600	1160	irftp.exe
PID 1160 wrote to memory of 1600	1160	irftp.exe
PID 1160 wrote to memory of 1600	1160	irftp.exe
PID 1160 wrote to memory of 2940	1160	SystemPropertiesProtection.exe
PID 1160 wrote to memory of 2940	1160	SystemPropertiesProtection.exe
PID 1160 wrote to memory of 2940	1160	SystemPropertiesProtection.exe
PID 1160 wrote to memory of 2896	1160	SystemPropertiesProtection.exe
PID 1160 wrote to memory of 2896	1160	SystemPropertiesProtection.exe
PID 1160 wrote to memory of 2896	1160	SystemPropertiesProtection.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:2196

C:\Windows\system32\BitLockerWizard.exe
C:\Windows\system32\BitLockerWizard.exe
1⤵
PID:1652

C:\Users\Admin\AppData\Local\BigD\BitLockerWizard.exe
C:\Users\Admin\AppData\Local\BigD\BitLockerWizard.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3036

C:\Windows\system32\irftp.exe
C:\Windows\system32\irftp.exe
1⤵
PID:336

C:\Users\Admin\AppData\Local\fjTMt\irftp.exe
C:\Users\Admin\AppData\Local\fjTMt\irftp.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1600

C:\Windows\system32\SystemPropertiesProtection.exe
C:\Windows\system32\SystemPropertiesProtection.exe
1⤵
PID:2940

C:\Users\Admin\AppData\Local\tGET\SystemPropertiesProtection.exe
C:\Users\Admin\AppData\Local\tGET\SystemPropertiesProtection.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\Local\BigD\BitLockerWizard.exe

Filesize
98KB

MD5
08a761595ad21d152db2417d6fdb239a

SHA1
d84c1bc2e8c9afce9fb79916df9bca169f93a936

SHA256
ec0b9e5f29a43f9db44fa76b85701058f26776ab974044c1d4741591b74d0620

SHA512
8b07828e9c0edf09277f89294b8e1a54816f6f3d1fe132b3eb70370b81feb82d056ec31566793bd6f451725f79c3b4aeedb15a83216115e00943e0c19cab37c9

Download Submit
C:\Users\Admin\AppData\Local\fjTMt\WINMM.dll

Filesize
1.2MB

MD5
ae35d6cbe83414c42435de962b00dc4c

SHA1
8f86c5bec6f652bd5e03ce124a0663736649e1a8

SHA256
9b3f8e46b9191140bc3f866d0b282b37398aa72fbb8355a72f1569b2f1c54042

SHA512
93c4c55e7ce1478d73d26ece2d505c715a1224dae96fca52148b4dcde10aaebaea6a9c161b94a7d737edc96bb6132dec808c0ca5fbb5b94b1ee41cd36e00f92c

Download Submit
C:\Users\Admin\AppData\Local\fjTMt\irftp.exe

Filesize
192KB

MD5
0cae1fb725c56d260bfd6feba7ae9a75

SHA1
102ac676a1de3ec3d56401f8efd518c31c8b0b80

SHA256
312f4107ff37dc988d99c5f56178708bb74a3906740cff4e337c0dde8f1e151d

SHA512
db969064577c4158d6bf925354319766b0d0373ddefb03dbfc9a9d2cadf8ddcd50a7f99b7ddf2ffad5e7fdbb6f02090b5b678bdf792d265054bff3b56ee0b8ec

Download Submit
C:\Users\Admin\AppData\Local\tGET\SystemPropertiesProtection.exe

Filesize
80KB

MD5
05138d8f952d3fff1362f7c50158bc38

SHA1
780bc59fcddf06a7494d09771b8340acffdcc720

SHA256
753a43d8aa74341d06582bd6b3784dc5f8c6f46174c2a306cf284de238a9c6bd

SHA512
27fa8c0af3d01f0816852d04693087f3c25d1307d8857a7ea75b0bb3e0ac927d262f5ac5a335afee150142fa3187354d33ebbcf6c3cd5cc33cb4e6cd00c50255

Download Submit
C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Yjafzwirjcl.lnk

Filesize
1KB

MD5
18cd5c56ccea18752c9bdab181422727

SHA1
6146cbef215335a0a845827ccb8360638989ed12

SHA256
3b7054340f55c2759a389c134d5d3a75ac0df2fa84b1e0a1747f15475e90c4c4

SHA512
8235439b683639784eb27eeb7381cfe10fc576c89d63e66fc195071306dba6d41c7dae87fa8cb43391a2a0ebe1db98265951317c9156e4d214e97db90d1ba891

Download Submit
\Users\Admin\AppData\Local\BigD\FVEWIZ.dll

Filesize
1.2MB

MD5
6971260254b854f5e8531d01606fbe9b

SHA1
fb7cafb667a2262e053b511e536980bd14714939

SHA256
f9dea9f1dbff09d103ddd470c9c198710a9f4dad0935e969451667041f4eafbf

SHA512
b81da80c907442199324f186be46bbf4f3bc195a17413ff9ea150e49f47ec9eeddcb688ff2cdd78c6721fca1c392c99e256e4028d06add94bcf5248898ed1f1e

Download Submit
\Users\Admin\AppData\Local\tGET\SYSDM.CPL

Filesize
1.2MB

MD5
940f9a3f3f3761e06bcdc6168320b579

SHA1
6351ac00614b6d64680d5874b1e2699092ffc99c

SHA256
b362bb2f6c7af3ddb48febdab59b2569b56c0e7661fe800cd5aba6b6d6cd0491

SHA512
df56d8759010aa1eafc701f137cbff533bcb912f9608fefdb2c3cdade5a418e4abc1db2f7bc0258d577e624be6fb254942738095acbc86e736c755f95c8d767a

Download Submit
memory/1160-11-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-28-0x0000000077680000-0x0000000077682000-memory.dmp

Filesize
8KB

Download
memory/1160-4-0x00000000772E6000-0x00000000772E7000-memory.dmp

Filesize
4KB

Download
memory/1160-10-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-9-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-8-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-7-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-16-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-26-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-17-0x0000000002540000-0x0000000002547000-memory.dmp

Filesize
28KB

Download
memory/1160-27-0x00000000774F1000-0x00000000774F2000-memory.dmp

Filesize
4KB

Download
memory/1160-37-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-39-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-5-0x0000000002D10000-0x0000000002D11000-memory.dmp

Filesize
4KB

Download
memory/1160-47-0x00000000772E6000-0x00000000772E7000-memory.dmp

Filesize
4KB

Download
memory/1160-15-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-12-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-14-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1160-13-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1600-77-0x0000000140000000-0x0000000140145000-memory.dmp

Filesize
1.3MB

Download
memory/1600-73-0x0000000140000000-0x0000000140145000-memory.dmp

Filesize
1.3MB

Download
memory/1600-72-0x0000000000130000-0x0000000000137000-memory.dmp

Filesize
28KB

Download
memory/2196-46-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/2196-2-0x00000000003A0000-0x00000000003A7000-memory.dmp

Filesize
28KB

Download
memory/2196-0-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/2896-94-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3036-56-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3036-60-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3036-55-0x0000000000290000-0x0000000000297000-memory.dmp

Filesize
28KB

Download