dridex | bf4a030404a33a8c559e6247a6a7dde969beac784237a4bc09ee9782a6b13eb6

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-10-2024 00:26

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General

Target

bf4a030404a33a8c559e6247a6a7dde969beac784237a4bc09ee9782a6b13eb6.dll
Size

700KB
MD5

22bb81fe492c73919a75ae4152bd6da9
SHA1

93ea623df22f23cfba08fce532ae04b037f6f93f
SHA256

bf4a030404a33a8c559e6247a6a7dde969beac784237a4bc09ee9782a6b13eb6
SHA512

60cad20be3e4548eab668e1c1c280d9588241638f320e2d9f36587ea89754c47e47ac4ca692182b7707d326ee6c88229b350f39ef11cf1e9c2b1b2fbf2cc704c
SSDEEP

12288:JqJ4FzHTx8cOjEIonNgQLtXKFg2t/KRi4Baed:JqGBHTxvt+g2gYed

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
behavioral2/memory/3436-4-0x00000000009A0000-0x00000000009A1000-memory.dmp	dridex_stager_shellcode

Dridex payload 9 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral2/memory/5040-0-0x0000000140000000-0x00000001400AF000-memory.dmp	dridex_payload
behavioral2/memory/3436-24-0x0000000140000000-0x00000001400AF000-memory.dmp	dridex_payload
behavioral2/memory/3436-36-0x0000000140000000-0x00000001400AF000-memory.dmp	dridex_payload
behavioral2/memory/5040-38-0x0000000140000000-0x00000001400AF000-memory.dmp	dridex_payload
behavioral2/memory/3576-45-0x0000000140000000-0x00000001400B1000-memory.dmp	dridex_payload
behavioral2/memory/3576-50-0x0000000140000000-0x00000001400B1000-memory.dmp	dridex_payload
behavioral2/memory/4352-62-0x0000000140000000-0x00000001400B0000-memory.dmp	dridex_payload
behavioral2/memory/4352-66-0x0000000140000000-0x00000001400B0000-memory.dmp	dridex_payload
behavioral2/memory/2792-81-0x0000000140000000-0x00000001400B0000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

RdpSa.exemsinfo32.exeRecoveryDrive.exe

pid	Process
3576	RdpSa.exe
4352	msinfo32.exe
2792	RecoveryDrive.exe

Loads dropped DLL 3 IoCs

Processes:

RdpSa.exemsinfo32.exeRecoveryDrive.exe

pid	Process
3576	RdpSa.exe
4352	msinfo32.exe
2792	RecoveryDrive.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qhmytabp = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\PSS42prL\\msinfo32.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

rundll32.exeRdpSa.exemsinfo32.exeRecoveryDrive.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	RdpSa.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	msinfo32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RecoveryDrive.exe

Modifies registry class 2 IoCs

Processes:

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	Process
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
5040	rundll32.exe
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	procid_target
PID 3436 wrote to memory of 4624	3436	96
PID 3436 wrote to memory of 4624	3436	96
PID 3436 wrote to memory of 3576	3436	97
PID 3436 wrote to memory of 3576	3436	97
PID 3436 wrote to memory of 4204	3436	98
PID 3436 wrote to memory of 4204	3436	98
PID 3436 wrote to memory of 4352	3436	99
PID 3436 wrote to memory of 4352	3436	99
PID 3436 wrote to memory of 2728	3436	100
PID 3436 wrote to memory of 2728	3436	100
PID 3436 wrote to memory of 2792	3436	101
PID 3436 wrote to memory of 2792	3436	101

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\bf4a030404a33a8c559e6247a6a7dde969beac784237a4bc09ee9782a6b13eb6.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:5040

C:\Windows\system32\RdpSa.exe
C:\Windows\system32\RdpSa.exe
1⤵
PID:4624

C:\Users\Admin\AppData\Local\34KDBb\RdpSa.exe
C:\Users\Admin\AppData\Local\34KDBb\RdpSa.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3576

C:\Windows\system32\msinfo32.exe
C:\Windows\system32\msinfo32.exe
1⤵
PID:4204

C:\Users\Admin\AppData\Local\vFha3\msinfo32.exe
C:\Users\Admin\AppData\Local\vFha3\msinfo32.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4352

C:\Windows\system32\RecoveryDrive.exe
C:\Windows\system32\RecoveryDrive.exe
1⤵
PID:2728

C:\Users\Admin\AppData\Local\jmmib1u\RecoveryDrive.exe
C:\Users\Admin\AppData\Local\jmmib1u\RecoveryDrive.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2792

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\34KDBb\RdpSa.exe

Filesize
56KB

MD5
5992f5b5d0b296b83877da15b54dd1b4

SHA1
0d87be8d4b7aeada4b55d1d05c0539df892f8f82

SHA256
32f60eabe54c4d0cd0f0ec29f48f55ca1ad097bf35097247b186fd70426f847c

SHA512
4f6da913af530301da1d0638aa2635ada446ebee6e27b5059db5c2b7fe439162ac3b1a595ecf4163a093890df9ac94d9085a53d8c991e48703f9d2691326e7e6

Download Submit
C:\Users\Admin\AppData\Local\34KDBb\WINSTA.dll

Filesize
708KB

MD5
1057bec46fb851a7c5bfc4e222919390

SHA1
db5534dcee761610c08a5feb38b26266175d7322

SHA256
0c0bad13573d1c12006cc7d4c95025752029465c10c424f8179b9f0b60556ca6

SHA512
155637711b295bddf8708478f7d54d0ec7731b03aaa8988696f1fd5e8270af4ea2075744665ae3152729263993de3020861811a47bca1ecdba990520395148d3

Download Submit
C:\Users\Admin\AppData\Local\jmmib1u\RecoveryDrive.exe

Filesize
911KB

MD5
b9b3dc6f2eb89e41ff27400952602c74

SHA1
24ae07e0db3ace0809d08bbd039db3a9d533e81b

SHA256
630518cb2e4636f889d12c98fb2e6be4e579c5eeb86f88695d3f7fff3f5515c4

SHA512
7906954b881f1051a0c7f098e096bc28eddcc48643b8bf3134dd57b8c18d8beba4f9a0ac5d348de2f9b8ea607c3e9cb0e61d91e4f3ba1fefb02839f928e3e3fe

Download Submit
C:\Users\Admin\AppData\Local\jmmib1u\UxTheme.dll

Filesize
704KB

MD5
d07cc9dd83d8eb97c7bc1b6f2074c75c

SHA1
d6a65914d9e829531c4f8af2a8939ae509a9bd8c

SHA256
2a59c395e1f3f8af24b2e6c3b7e4db0aad11463a4fd34e28496cadb5cef7b929

SHA512
b13cfaa100226ea4ba240bebef295da07f931d68eefe932503071cb3210bc7f8327fc39d6daa862a116f7acc036b0ee4ffa76ff3e0e4457217445bf6eca41ccb

Download Submit
C:\Users\Admin\AppData\Local\vFha3\SLC.dll

Filesize
704KB

MD5
02f76180d49cba2b5e2bbbd0e97bf9ae

SHA1
7f478536e16ec8bcfa226ed2cadbf7020b5bf86d

SHA256
12acab01c811dbf50bd58703f3fc179babe6d10b386aad2ee0b861159f76fe7a

SHA512
b88949b33dbf6c6f70fbf9fae0da913ae7713f5b0412ca6bb150b8f6cdf3b33a19166ff5b5eb8122378d6a8391d8c816ad6557fa7b50cc4530fcba594d873b44

Download Submit
C:\Users\Admin\AppData\Local\vFha3\msinfo32.exe

Filesize
376KB

MD5
0aed91da63713bf9f881b03a604a1c9d

SHA1
b1b2d292cb1a4c13dc243b5eab13afb316a28b9a

SHA256
5cf1604d2473661266e08fc0e4e144ea98f99b7584c43585eb2b01551130fd14

SHA512
04bca9b321d702122b6e72c2ad15b7cd98924e5dfc3b8dd0e907ea28fd7826d3f72b98c67242b6698594df648d3c2b6b0952bb52a2363b687bbe44a66e830c03

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

Filesize
1KB

MD5
4322da7bf0bfbd219ea93ea624e6ec14

SHA1
9098a3f373c3fbcffec34e6319943fa8a0f5c72e

SHA256
eb1264fe47ec5da8868e6198a593df71231e6543c523534e47f933d39aecf053

SHA512
8d912c89e0521a5c2e8b2d0c301c5ac08ef5596103489e897b7949ab719ce6c2cc27598856bfcfc8513bfd07b1b25651c141bd362c67d29898e3cccdcca3e9b2

Download Submit
memory/2792-81-0x0000000140000000-0x00000001400B0000-memory.dmp

Filesize
704KB

Download
memory/3436-25-0x00007FFB656A0000-0x00007FFB656B0000-memory.dmp

Filesize
64KB

Download
memory/3436-15-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-11-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-10-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-9-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-8-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-7-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-24-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-4-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/3436-26-0x00007FFB65690000-0x00007FFB656A0000-memory.dmp

Filesize
64KB

Download
memory/3436-36-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-3-0x00007FFB649CA000-0x00007FFB649CB000-memory.dmp

Filesize
4KB

Download
memory/3436-13-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-12-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-6-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-14-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/3436-23-0x00000000028F0000-0x00000000028F7000-memory.dmp

Filesize
28KB

Download
memory/3576-50-0x0000000140000000-0x00000001400B1000-memory.dmp

Filesize
708KB

Download
memory/3576-47-0x000002088A9A0000-0x000002088A9A7000-memory.dmp

Filesize
28KB

Download
memory/3576-45-0x0000000140000000-0x00000001400B1000-memory.dmp

Filesize
708KB

Download
memory/4352-62-0x0000000140000000-0x00000001400B0000-memory.dmp

Filesize
704KB

Download
memory/4352-61-0x000001B0092A0000-0x000001B0092A7000-memory.dmp

Filesize
28KB

Download
memory/4352-66-0x0000000140000000-0x00000001400B0000-memory.dmp

Filesize
704KB

Download
memory/5040-38-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download
memory/5040-2-0x0000022792570000-0x0000022792577000-memory.dmp

Filesize
28KB

Download
memory/5040-0-0x0000000140000000-0x00000001400AF000-memory.dmp

Filesize
700KB

Download