dridex | 3b4f8af9318b4a4541fb0b94db0ce8483a65c828b755274f16a97bcaa377e4c4

General

Target

3b4f8af9318b4a4541fb0b94db0ce8483a65c828b755274f16a97bcaa377e4c4.dll
Size

672KB
MD5

aaf31301e741243c6ad5399aa9e4f757
SHA1

c2529446c4fc65d54f634e7ac23777f78cb8757a
SHA256

3b4f8af9318b4a4541fb0b94db0ce8483a65c828b755274f16a97bcaa377e4c4
SHA512

327571c02220df11a30d34f81138f7d8e0302986f63036201e2aebe264616a5005204e4a285a45b6291d805d6e7a69b49872a09f5ad19b5d468fcbd7c3edd83d
SSDEEP

6144:V34xznfAp4x+NWMqW/KZ1vCDTEpc2bysCZR6iwAtUnWKT5WK8Rpv1llfFfCRAuTU:VIKp/UWCZdCDh2IZDwAFRpR6Au

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 family
dridex

Dridex Shellcode 1 IoCs

Detects Dridex Payload shellcode injected in Explorer process.

botnet payload

Processes:

resource	yara_rule
behavioral1/memory/1252-4-0x0000000002D70000-0x0000000002D71000-memory.dmp	dridex_stager_shellcode

Dridex payload 11 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral1/memory/2408-0-0x000007FEF65E0000-0x000007FEF6688000-memory.dmp	dridex_payload
behavioral1/memory/1252-17-0x0000000140000000-0x00000001400A8000-memory.dmp	dridex_payload
behavioral1/memory/1252-25-0x0000000140000000-0x00000001400A8000-memory.dmp	dridex_payload
behavioral1/memory/1252-36-0x0000000140000000-0x00000001400A8000-memory.dmp	dridex_payload
behavioral1/memory/1252-37-0x0000000140000000-0x00000001400A8000-memory.dmp	dridex_payload
behavioral1/memory/2408-45-0x000007FEF65E0000-0x000007FEF6688000-memory.dmp	dridex_payload
behavioral1/memory/2536-55-0x000007FEF6690000-0x000007FEF6739000-memory.dmp	dridex_payload
behavioral1/memory/2536-59-0x000007FEF6690000-0x000007FEF6739000-memory.dmp	dridex_payload
behavioral1/memory/2172-72-0x000007FEF6090000-0x000007FEF6139000-memory.dmp	dridex_payload
behavioral1/memory/2172-76-0x000007FEF6090000-0x000007FEF6139000-memory.dmp	dridex_payload
behavioral1/memory/2968-92-0x000007FEF6090000-0x000007FEF6139000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

notepad.exeDxpserver.exemstsc.exe

pid process

2536 notepad.exe
2172 Dxpserver.exe
2968 mstsc.exe
Loads dropped DLL 7 IoCs

Processes:

notepad.exeDxpserver.exemstsc.exe

pid process

1252
2536 notepad.exe
1252
2172 Dxpserver.exe
1252
2968 mstsc.exe
1252

pid	process
2536	notepad.exe
2172	Dxpserver.exe
2968	mstsc.exe

pid	process
1252
2536	notepad.exe
1252
2172	Dxpserver.exe
1252
2968	mstsc.exe
1252

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dnfwvyvycst = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\Windows\\NETWOR~1\\Ay\\DXPSER~1.EXE"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

Dxpserver.exemstsc.exerundll32.exenotepad.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Dxpserver.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstsc.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	notepad.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2408	rundll32.exe
2408	rundll32.exe
2408	rundll32.exe
1252
1252
1252
1252
1252
1252
1252
1252
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1252
1252

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

description	pid	target process
PID 1252 wrote to memory of 2780	1252	notepad.exe
PID 1252 wrote to memory of 2780	1252	notepad.exe
PID 1252 wrote to memory of 2780	1252	notepad.exe
PID 1252 wrote to memory of 2536	1252	notepad.exe
PID 1252 wrote to memory of 2536	1252	notepad.exe
PID 1252 wrote to memory of 2536	1252	notepad.exe
PID 1252 wrote to memory of 2524	1252	Dxpserver.exe
PID 1252 wrote to memory of 2524	1252	Dxpserver.exe
PID 1252 wrote to memory of 2524	1252	Dxpserver.exe
PID 1252 wrote to memory of 2172	1252	Dxpserver.exe
PID 1252 wrote to memory of 2172	1252	Dxpserver.exe
PID 1252 wrote to memory of 2172	1252	Dxpserver.exe
PID 1252 wrote to memory of 640	1252	mstsc.exe
PID 1252 wrote to memory of 640	1252	mstsc.exe
PID 1252 wrote to memory of 640	1252	mstsc.exe
PID 1252 wrote to memory of 2968	1252	mstsc.exe
PID 1252 wrote to memory of 2968	1252	mstsc.exe
PID 1252 wrote to memory of 2968	1252	mstsc.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\3b4f8af9318b4a4541fb0b94db0ce8483a65c828b755274f16a97bcaa377e4c4.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2408

C:\Windows\system32\notepad.exe
C:\Windows\system32\notepad.exe
1⤵
PID:2780

C:\Users\Admin\AppData\Local\uvF\notepad.exe
C:\Users\Admin\AppData\Local\uvF\notepad.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2536

C:\Windows\system32\Dxpserver.exe
C:\Windows\system32\Dxpserver.exe
1⤵
PID:2524

C:\Users\Admin\AppData\Local\R82NicA\Dxpserver.exe
C:\Users\Admin\AppData\Local\R82NicA\Dxpserver.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2172

C:\Windows\system32\mstsc.exe
C:\Windows\system32\mstsc.exe
1⤵
PID:640

C:\Users\Admin\AppData\Local\jhatf\mstsc.exe
C:\Users\Admin\AppData\Local\jhatf\mstsc.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\R82NicA\XmlLite.dll

Filesize
676KB

MD5
ee5d8acbf4dbe9792be2cd9cf4396eeb

SHA1
147f7940d44a1b3ac7bd9a396fb691207ffd4b3e

SHA256
79fce1991043212a3a4650fbc19faac5550f2b3b665bf14f8c07372f4bccfdf0

SHA512
7f4e6d8315e31024549cc2af0248e2c943ba5fb913d0e2cab585e15d3801397dd03829f4093c487f0d18d5bf3a34e9510af148e81aeabe747d9df5e3ce0b934b

Download Submit
C:\Users\Admin\AppData\Local\uvF\VERSION.dll

Filesize
676KB

MD5
700171c3d157eae51220c335ca05278c

SHA1
10efc691aac07f4b48d2206adde68a68f2308e0b

SHA256
9dd4465c1c38c911805a37a49bde07689c9a8ebe4fbbaa7169dfa4e810b0391b

SHA512
c9b86db592481fee001903532918b8cec4cfad637a47fc85fb5c357b777c881302aab59e97f6f0a3a2241062143c4b65922d3c2277b8c95ea55255e34a0263fc

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

Filesize
1KB

MD5
dc1de726a87c681e4248b4773e63a471

SHA1
c3c047b115e4894e6c3c11fe4d8629b1d4ce5820

SHA256
5bc6ed745063fdd81f99564c0abda58fd5571d7711375cbe803c47e774251b0e

SHA512
9c664c043ba7055a544c12f354363087907a57a5b489b9460ba5e74584e3b04b8851139719d28011192da9cadc7c77e5169b800b6a56d509dd28c8350eae4f60

Download Submit
\Users\Admin\AppData\Local\R82NicA\Dxpserver.exe

Filesize
259KB

MD5
4d38389fb92e43c77a524fd96dbafd21

SHA1
08014e52f6894cad4f1d1e6fc1a703732e9acd19

SHA256
070bc95c486c15d2edc3548ba416dc9565ead401cb03a0472f719fb55ac94e73

SHA512
02d8d130cff2b8de15139d309e1cd74a2148bb786fd749e5f22775d45e193b0f75adf40274375cabce33576480ff20456f25172d29a034cd134b8084d40a67ba

Download Submit
\Users\Admin\AppData\Local\jhatf\Secur32.dll

Filesize
676KB

MD5
d20fc9ad940117f1fae0d3c919905b56

SHA1
7db4a7ca1264d91b4a27a6da03446c8b83c2e5f5

SHA256
7ac1a10e035b7ccbc32672bdb28dca2a8f7a6f7243681809bc6d1926b1a18d59

SHA512
2c941e96d7d5e782147c2478c7ff78b43815cec7767a4500cb975af4c8b10d9f3878c2ca3806c040408407cd29859394580df9c5fa56a0933d4bd9cb1a7e962d

Download Submit
\Users\Admin\AppData\Local\jhatf\mstsc.exe

Filesize
1.1MB

MD5
50f739538ef014b2e7ec59431749d838

SHA1
b439762b8efe8cfb977e7374c11a7e4d8ed05eb3

SHA256
85c510c7fa8d64c70886ea01ec99e7b9064594f021a95b4cf88359421e732be3

SHA512
02e231ddc4ac012c597b9db42f8a77fbf35ca8253c030d443a0dd4db3d76a9ee1cced600f12d7bb06305e7a4da4a8fda980faad335adcb12738d80d453cb3cc8

Download Submit
\Users\Admin\AppData\Local\uvF\notepad.exe

Filesize
189KB

MD5
f2c7bb8acc97f92e987a2d4087d021b1

SHA1
7eb0139d2175739b3ccb0d1110067820be6abd29

SHA256
142e1d688ef0568370c37187fd9f2351d7ddeda574f8bfa9b0fa4ef42db85aa2

SHA512
2f37a2e503cffbd7c05c7d8a125b55368ce11aad5b62f17aaac7aaf3391a6886fa6a0fd73223e9f30072419bf5762a8af7958e805a52d788ba41f61eb084bfe8

Download Submit
memory/1252-27-0x00000000770F0000-0x00000000770F2000-memory.dmp

Filesize
8KB

Download
memory/1252-17-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-14-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-13-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-12-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-11-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-10-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-25-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-9-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-8-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-7-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-3-0x0000000076E56000-0x0000000076E57000-memory.dmp

Filesize
4KB

Download
memory/1252-26-0x00000000770C0000-0x00000000770C2000-memory.dmp

Filesize
8KB

Download
memory/1252-36-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-37-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-4-0x0000000002D70000-0x0000000002D71000-memory.dmp

Filesize
4KB

Download
memory/1252-46-0x0000000076E56000-0x0000000076E57000-memory.dmp

Filesize
4KB

Download
memory/1252-16-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-24-0x0000000002990000-0x0000000002997000-memory.dmp

Filesize
28KB

Download
memory/1252-6-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/1252-15-0x0000000140000000-0x00000001400A8000-memory.dmp

Filesize
672KB

Download
memory/2172-71-0x0000000000110000-0x0000000000117000-memory.dmp

Filesize
28KB

Download
memory/2172-72-0x000007FEF6090000-0x000007FEF6139000-memory.dmp

Filesize
676KB

Download
memory/2172-76-0x000007FEF6090000-0x000007FEF6139000-memory.dmp

Filesize
676KB

Download
memory/2408-45-0x000007FEF65E0000-0x000007FEF6688000-memory.dmp

Filesize
672KB

Download
memory/2408-0-0x000007FEF65E0000-0x000007FEF6688000-memory.dmp

Filesize
672KB

Download
memory/2408-2-0x0000000000320000-0x0000000000327000-memory.dmp

Filesize
28KB

Download
memory/2536-59-0x000007FEF6690000-0x000007FEF6739000-memory.dmp

Filesize
676KB

Download
memory/2536-55-0x000007FEF6690000-0x000007FEF6739000-memory.dmp

Filesize
676KB

Download
memory/2536-54-0x0000000000100000-0x0000000000107000-memory.dmp

Filesize
28KB

Download
memory/2968-92-0x000007FEF6090000-0x000007FEF6139000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads