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
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 18:57

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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

resource	yara_rule
behavioral21/memory/1196-5-0x0000000002A60000-0x0000000002A61000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

pid	Process
2976	ComputerDefaults.exe
2468	psr.exe
2924	wusa.exe

Loads dropped DLL 7 IoCs

pid	Process
1196	Process not Found
2976	ComputerDefaults.exe
1196	Process not Found
2468	psr.exe
1196	Process not Found
2924	wusa.exe
1196	Process not Found

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dnfwvyvycst = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SystemCertificates\\JHh\\psr.exe"	Process not Found

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ComputerDefaults.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	psr.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	wusa.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2348	rundll32.exe
2348	rundll32.exe
2348	rundll32.exe
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 2124	1196	Process not Found	31
PID 1196 wrote to memory of 2124	1196	Process not Found	31
PID 1196 wrote to memory of 2124	1196	Process not Found	31
PID 1196 wrote to memory of 2976	1196	Process not Found	32
PID 1196 wrote to memory of 2976	1196	Process not Found	32
PID 1196 wrote to memory of 2976	1196	Process not Found	32
PID 1196 wrote to memory of 2332	1196	Process not Found	33
PID 1196 wrote to memory of 2332	1196	Process not Found	33
PID 1196 wrote to memory of 2332	1196	Process not Found	33
PID 1196 wrote to memory of 2468	1196	Process not Found	34
PID 1196 wrote to memory of 2468	1196	Process not Found	34
PID 1196 wrote to memory of 2468	1196	Process not Found	34
PID 1196 wrote to memory of 2904	1196	Process not Found	35
PID 1196 wrote to memory of 2904	1196	Process not Found	35
PID 1196 wrote to memory of 2904	1196	Process not Found	35
PID 1196 wrote to memory of 2924	1196	Process not Found	36
PID 1196 wrote to memory of 2924	1196	Process not Found	36
PID 1196 wrote to memory of 2924	1196	Process not Found	36

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:2348

C:\Windows\system32\ComputerDefaults.exe
C:\Windows\system32\ComputerDefaults.exe
1⤵
PID:2124

C:\Users\Admin\AppData\Local\ut4z9\ComputerDefaults.exe
C:\Users\Admin\AppData\Local\ut4z9\ComputerDefaults.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2976

C:\Windows\system32\psr.exe
C:\Windows\system32\psr.exe
1⤵
PID:2332

C:\Users\Admin\AppData\Local\lxU\psr.exe
C:\Users\Admin\AppData\Local\lxU\psr.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2468

C:\Windows\system32\wusa.exe
C:\Windows\system32\wusa.exe
1⤵
PID:2904

C:\Users\Admin\AppData\Local\ExOw0y\wusa.exe
C:\Users\Admin\AppData\Local\ExOw0y\wusa.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2924

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\ExOw0y\wusa.exe

Filesize
300KB

MD5
c15b3d813f4382ade98f1892350f21c7

SHA1
a45c5abc6751bc8b9041e5e07923fa4fc1b4542b

SHA256
8f067da98eb3ea9f1db2f0063ff54e07d992fbf051779b467e222639be4127e3

SHA512
6d028fe81fe45d0ef291741513ecf939e412912647347d4d5bad89571f33e1084dc0fd26eb7313c7191f938c3f50243f453e2690e2475fc3f5539a20c2ff2f3c

Download Submit
C:\Users\Admin\AppData\Local\ut4z9\ComputerDefaults.exe

Filesize
36KB

MD5
86bd981f55341273753ac42ea200a81e

SHA1
14fe410efc9aeb0a905b984ac27719ff0dd10ea7

SHA256
40b194be2bad2d3d4d1b69f9aec2853c8b663130810a11607ff72a9e3a06d5b3

SHA512
49bb6d4bf7a9356fadde7f6165af6973630827d28b69db10ad477a84d98b08fb82e4daae777166e1ddddb5b5efcdf634e4e9bd34b255dae87462ba32e8bba143

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

Filesize
1KB

MD5
6edada673a520bca5afda93fa13b21f6

SHA1
c7257107dbac76503f125da81ca21f46005ddfa2

SHA256
88576670b8a6ba44129a12558bb844e30410ef249d6a0b7362505412e6d62163

SHA512
3156625061a8a250e14b68841f3f451996b74fe3032e108bf25054c62fdcd7f27615e410ede157c5d7174ae6dddb5b9321b03886b73fa77afcb4db350bdee716

Download Submit
\Users\Admin\AppData\Local\ExOw0y\WTSAPI32.dll

Filesize
1.2MB

MD5
b14f602e83ceab049f0c43cef8e7abf9

SHA1
99c258640debaab9991c392c8045f27e6865ec8c

SHA256
aca5a8d4482e05506563814c6dd9809df04443f92adbbd473289c7cafbbbc006

SHA512
c7aa6e4a2645ca067bdccb036a7095f4d7c4f34523f3c468691040fcdb0f771e0fd45d9c9f1d39aa0d2079cd72448cb6023a33db4acb38ec1b9783a91168a1d4

Download Submit
\Users\Admin\AppData\Local\lxU\XmlLite.dll

Filesize
1.2MB

MD5
cafb7387d3699a5332773c86f1e4bd01

SHA1
b241c3eff348b0e8b14200a1d13a45deda93c474

SHA256
894ddf797a7867cb7694c78d0c894e3b80a41e7a5c5725393cd740ee0fd97309

SHA512
e0a466df311071b9ef740cc1274c0ca7ea50a4002cd6b9bc9c1b9a386904d4875361b92e76a75ec88d620a24ba75241c92dcaaa3109f810ae446e9d448a2b310

Download Submit
\Users\Admin\AppData\Local\lxU\psr.exe

Filesize
715KB

MD5
a80527109d75cba125d940b007eea151

SHA1
facf32a9ede6abfaa09368bfdfcfec8554107272

SHA256
68910f8aae867e938b6a3b76cdf176898ba275d9ade85b4ce00b03232de4c495

SHA512
77b86a597c33af8d3fbd9711f4abe6e0ca33b86279b1d28a25dcf3545a34b221be1ad7d11004d016203809cead1ebfd4b7e889ee9df2efc100eabf77963c1774

Download Submit
\Users\Admin\AppData\Local\ut4z9\appwiz.cpl

Filesize
1.2MB

MD5
63ed40ad83a2df1cabbb3a2a1eb2d051

SHA1
9b809c00850b992843970f31054fb8e03447b803

SHA256
642a2aca3cc377c96cb1a7382661807be0e4eebe2cfbc7a3f191a367953b67d7

SHA512
776ef5ca634e3455503e4bb04855ffa116a32f5ed18fd06bb589f824d733f6704c9df0d1487c13d294c5e83d6e928a9588623d7e32554750bbd7ee1cefd9909a

Download Submit
memory/1196-7-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-37-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-12-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-13-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-15-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-16-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-30-0x0000000077200000-0x0000000077202000-memory.dmp

Filesize
8KB

Download
memory/1196-29-0x0000000077071000-0x0000000077072000-memory.dmp

Filesize
4KB

Download
memory/1196-26-0x0000000002A40000-0x0000000002A47000-memory.dmp

Filesize
28KB

Download
memory/1196-25-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-14-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-8-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-38-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-11-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-47-0x0000000076E66000-0x0000000076E67000-memory.dmp

Filesize
4KB

Download
memory/1196-10-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/1196-4-0x0000000076E66000-0x0000000076E67000-memory.dmp

Filesize
4KB

Download
memory/1196-5-0x0000000002A60000-0x0000000002A61000-memory.dmp

Filesize
4KB

Download
memory/1196-9-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/2348-0-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/2348-46-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/2348-1-0x0000000140000000-0x0000000140143000-memory.dmp

Filesize
1.3MB

Download
memory/2468-77-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2468-72-0x0000000000720000-0x0000000000727000-memory.dmp

Filesize
28KB

Download
memory/2924-93-0x0000000000190000-0x0000000000197000-memory.dmp

Filesize
28KB

Download
memory/2924-98-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2976-56-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2976-60-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/2976-55-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download