dridex | b9414ec1a9551702c1248ce53e3b9f80fd023fb0393c957f3cc949dfcdfcb11f

General

Target

b9414ec1a9551702c1248ce53e3b9f80fd023fb0393c957f3cc949dfcdfcb11f.dll
Size

692KB
MD5

c2b6f8ebb1dd8692d134ed9dd9891cfa
SHA1

1a1eb14433d4be1fb5e464c913a478f286fbf991
SHA256

b9414ec1a9551702c1248ce53e3b9f80fd023fb0393c957f3cc949dfcdfcb11f
SHA512

a6a938cdb0718f6757cffbf122d7f36420b78a20df3727872469c8f4bacf131d5ea596c90b148771e95c89cf9ccc10388f36e19098e491c1dbc0a96ff563befe
SSDEEP

12288:wqJ4FzHTx8cOjEIonNgQLtXKFg2t/KRi4Baed:wqGBHTxvt+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/3440-3-0x0000000003090000-0x0000000003091000-memory.dmp	dridex_stager_shellcode

Dridex payload 8 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral2/memory/1632-1-0x0000000140000000-0x00000001400AD000-memory.dmp	dridex_payload
behavioral2/memory/3440-22-0x0000000140000000-0x00000001400AD000-memory.dmp	dridex_payload
behavioral2/memory/3440-34-0x0000000140000000-0x00000001400AD000-memory.dmp	dridex_payload
behavioral2/memory/1632-36-0x0000000140000000-0x00000001400AD000-memory.dmp	dridex_payload
behavioral2/memory/3968-45-0x0000000140000000-0x00000001400AE000-memory.dmp	dridex_payload
behavioral2/memory/3968-48-0x0000000140000000-0x00000001400AE000-memory.dmp	dridex_payload
behavioral2/memory/5024-64-0x0000000140000000-0x00000001400AE000-memory.dmp	dridex_payload
behavioral2/memory/4812-79-0x0000000140000000-0x00000001400AE000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

wusa.execmstp.exesdclt.exe

pid process

3968 wusa.exe
5024 cmstp.exe
4812 sdclt.exe
Loads dropped DLL 3 IoCs

Processes:

wusa.execmstp.exesdclt.exe

pid process

3968 wusa.exe
5024 cmstp.exe
4812 sdclt.exe

pid	process
3968	wusa.exe
5024	cmstp.exe
4812	sdclt.exe

pid	process
3968	wusa.exe
5024	cmstp.exe
4812	sdclt.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mmqwm = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\TEMPLA~1\\LIVECO~1\\16\\Managed\\DOCUME~1\\1033\\KHwEBY\\cmstp.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

rundll32.exewusa.execmstp.exesdclt.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	wusa.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	cmstp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	sdclt.exe

Modifies registry class 3 IoCs

Processes:

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
1632	rundll32.exe
1632	rundll32.exe
1632	rundll32.exe
1632	rundll32.exe
3440
3440
3440
3440
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3440

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

3440
3440

pid	process
3440
3440

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	target process
PID 3440 wrote to memory of 4980	3440	wusa.exe
PID 3440 wrote to memory of 4980	3440	wusa.exe
PID 3440 wrote to memory of 3968	3440	wusa.exe
PID 3440 wrote to memory of 3968	3440	wusa.exe
PID 3440 wrote to memory of 4196	3440	cmstp.exe
PID 3440 wrote to memory of 4196	3440	cmstp.exe
PID 3440 wrote to memory of 5024	3440	cmstp.exe
PID 3440 wrote to memory of 5024	3440	cmstp.exe
PID 3440 wrote to memory of 4764	3440	sdclt.exe
PID 3440 wrote to memory of 4764	3440	sdclt.exe
PID 3440 wrote to memory of 4812	3440	sdclt.exe
PID 3440 wrote to memory of 4812	3440	sdclt.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\b9414ec1a9551702c1248ce53e3b9f80fd023fb0393c957f3cc949dfcdfcb11f.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1632

C:\Windows\system32\wusa.exe
C:\Windows\system32\wusa.exe
1⤵
PID:4980

C:\Users\Admin\AppData\Local\n09H9A5j\wusa.exe
C:\Users\Admin\AppData\Local\n09H9A5j\wusa.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3968

C:\Windows\system32\cmstp.exe
C:\Windows\system32\cmstp.exe
1⤵
PID:4196

C:\Users\Admin\AppData\Local\q60\cmstp.exe
C:\Users\Admin\AppData\Local\q60\cmstp.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:5024

C:\Windows\system32\sdclt.exe
C:\Windows\system32\sdclt.exe
1⤵
PID:4764

C:\Users\Admin\AppData\Local\xMUT9B\sdclt.exe
C:\Users\Admin\AppData\Local\xMUT9B\sdclt.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4812

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

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Downloads

C:\Users\Admin\AppData\Local\n09H9A5j\WTSAPI32.dll

Filesize
696KB

MD5
924f4e2a003bd39b57a088eb3c4615bf

SHA1
73bc835fa1c6ab2b27d534a9e221d8ceb330c00a

SHA256
c98e84cd952efa8a8f55edeb1f4c56aadb8586c27a50a80e4e3eff08340647e7

SHA512
9d1b369cd9af154671f7637ac20dd6c0cc23750f1eedada5f1b475fdb7cf09727942e7019c047bf7c2372ca6f27b882697e89d2d9092a08d0f3325e24e3a68fe

Download Submit
C:\Users\Admin\AppData\Local\n09H9A5j\wusa.exe

Filesize
309KB

MD5
e43499ee2b4cf328a81bace9b1644c5d

SHA1
b2b55641f2799e3fdb3bea709c9532017bbac59d

SHA256
3e30230bbf3ceee3e58162b61eed140e9616210833a6ad7df3e106bc7492d2fb

SHA512
04823764520871f9202d346b08a194bdd5f5929db6d5c2f113911f84aece7471c8d3bd2c4256119a303dbe18a0c055dbc5034d80b1f27a43744104544731f52b

Download Submit
C:\Users\Admin\AppData\Local\q60\VERSION.dll

Filesize
696KB

MD5
5d67d61df79126de5c4b296d9dbd179a

SHA1
228953215e6800734e46dac21bae5704b768c360

SHA256
009be3655e0bb1103e0375b54c2ec20e374da5141d24e5bced4246789f6822f6

SHA512
0eecf5a15153b2bacb1697f02afc3163bc172d3ae9c935a9fcb63071c1da9a9c070527d445c4f4f41f49bfa4e7a8c7cc26a9806c1d566c27bbad777ba1841b9c

Download Submit
C:\Users\Admin\AppData\Local\q60\cmstp.exe

Filesize
96KB

MD5
4cc43fe4d397ff79fa69f397e016df52

SHA1
8fd6cf81ad40c9b123cd75611860a8b95c72869c

SHA256
f2d3905ee38b2b5c0b724d582f14eb1db7621ffb8f3826df686a20784341614c

SHA512
851ef9fa5a03ec8b9fea0094c6e4bfa0b9e71cee3412ee86b2dfc34682aa5fb6455fefe7fc0092b711956d7c880cf8a5761b63ee990aa8e72f3473086ac0f157

Download Submit
C:\Users\Admin\AppData\Local\xMUT9B\ReAgent.dll

Filesize
696KB

MD5
ac0c5044fe70aa1f9a81325b050a60ba

SHA1
a2b4dcf285d50b7595ce5f99a22f89ff392a2ca5

SHA256
6701af47ee04a0458835b717acaf3afd37dbe03a6df0c231c7739f515c2e22a8

SHA512
07eccf6159c6f04d42dfa1be9208b265b5aca8b17e6739eaa0f592c5183420d643efd4d21336972743176f6259fc77a28d0dd8f88fd6babcb57639bc9f573d0a

Download Submit
C:\Users\Admin\AppData\Local\xMUT9B\sdclt.exe

Filesize
1.2MB

MD5
e09d48f225e7abcab14ebd3b8a9668ec

SHA1
1c5b9322b51c09a407d182df481609f7cb8c425d

SHA256
efd238ea79b93d07852d39052f1411618c36e7597e8af0966c4a3223f0021dc3

SHA512
384d606b90c4803e5144b4de24edc537cb22dd59336a18a58d229500ed36aec92c8467cae6d3f326647bd044d8074931da553c7809727fb70227e99c257df0b4

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

Filesize
1KB

MD5
04bf7c06a981c06d247792578cda37c0

SHA1
353f10a4dacfab8805e8ee399ff72c0d0af4dede

SHA256
995f7312be458dc1ab3c0c7a6ad0a0198ba17c50b7cf162be5ed0d42ac01e7d8

SHA512
9ce9fcb0c792f83770b7a3197ac5fd37856cffcf9bb7956501ded7a88704b29c1b5943786defb3cfc7992dbc13b4e6c0c45f221250673c7af2ff0c951ea504d7

Download Submit
memory/1632-1-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/1632-0-0x0000024D506A0000-0x0000024D506A7000-memory.dmp

Filesize
28KB

Download
memory/1632-36-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-7-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-9-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-24-0x00007FFDFCD70000-0x00007FFDFCD80000-memory.dmp

Filesize
64KB

Download
memory/3440-23-0x00007FFDFCD80000-0x00007FFDFCD90000-memory.dmp

Filesize
64KB

Download
memory/3440-8-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-6-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-34-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-12-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-10-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-11-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-5-0x00007FFDFCBAA000-0x00007FFDFCBAB000-memory.dmp

Filesize
4KB

Download
memory/3440-22-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-3-0x0000000003090000-0x0000000003091000-memory.dmp

Filesize
4KB

Download
memory/3440-13-0x0000000140000000-0x00000001400AD000-memory.dmp

Filesize
692KB

Download
memory/3440-21-0x0000000000FB0000-0x0000000000FB7000-memory.dmp

Filesize
28KB

Download
memory/3968-45-0x0000000140000000-0x00000001400AE000-memory.dmp

Filesize
696KB

Download
memory/3968-48-0x0000000140000000-0x00000001400AE000-memory.dmp

Filesize
696KB

Download
memory/3968-43-0x00000188B6830000-0x00000188B6837000-memory.dmp

Filesize
28KB

Download
memory/4812-79-0x0000000140000000-0x00000001400AE000-memory.dmp

Filesize
696KB

Download
memory/5024-64-0x0000000140000000-0x00000001400AE000-memory.dmp

Filesize
696KB

Download
memory/5024-61-0x0000017E5FB70000-0x0000017E5FB77000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads