dridex | cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16

Analysis

max time kernel
120s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 11:13

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General

Target

cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16.dll
Size

1.3MB
MD5

92e269f3d75a1ef7b681a16bd1d87776
SHA1

aa6d545328188d3e89d5c0ba23f539f7ef1fe40e
SHA256

cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16
SHA512

ac971a0c0e8c3471a0f82f9e991e09b6fa11286f932ce05885b462ea0fd7e691f5ec2ef7361258f7028c7f2824e09e1a1843e102c92ef62a1ac458ae29de0934
SSDEEP

12288:M9bvAviE6/WFmTsg2t1TxzGIhRR/xSw7aRlVYxrx6g:M9bN/Ypgg1TxqkR9xaExl

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/1220-4-0x0000000002210000-0x0000000002211000-memory.dmp	dridex_stager_shellcode

Dridex payload 12 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral1/memory/2236-1-0x000007FEF7330000-0x000007FEF7474000-memory.dmp	dridex_payload
behavioral1/memory/1220-38-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral1/memory/1220-30-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral1/memory/2236-43-0x000007FEF7330000-0x000007FEF7474000-memory.dmp	dridex_payload
behavioral1/memory/1220-47-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral1/memory/1220-46-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral1/memory/2696-64-0x000007FEF7FA0000-0x000007FEF80E5000-memory.dmp	dridex_payload
behavioral1/memory/2696-68-0x000007FEF7FA0000-0x000007FEF80E5000-memory.dmp	dridex_payload
behavioral1/memory/1696-80-0x000007FEF7300000-0x000007FEF7478000-memory.dmp	dridex_payload
behavioral1/memory/1696-85-0x000007FEF7300000-0x000007FEF7478000-memory.dmp	dridex_payload
behavioral1/memory/1800-97-0x000007FEF7040000-0x000007FEF7185000-memory.dmp	dridex_payload
behavioral1/memory/1800-101-0x000007FEF7040000-0x000007FEF7185000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

cmstp.exedpapimig.exeWFS.exe

pid process

2696 cmstp.exe
1696 dpapimig.exe
1800 WFS.exe
Loads dropped DLL 7 IoCs

Processes:

cmstp.exedpapimig.exeWFS.exe

pid process

1220
2696 cmstp.exe
1220
1696 dpapimig.exe
1220
1800 WFS.exe
1220

pid	process
2696	cmstp.exe
1696	dpapimig.exe
1800	WFS.exe

pid	process
1220
2696	cmstp.exe
1220
1696	dpapimig.exe
1220
1800	WFS.exe
1220

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kgvptlq = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Office\\Recent\\JT\\dpapimig.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

cmstp.exedpapimig.exeWFS.exerundll32.exe

description	ioc	process
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	dpapimig.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WFS.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.execmstp.exe

pid	process
2236	rundll32.exe
2236	rundll32.exe
2236	rundll32.exe
1220
1220
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1220
1220
1220
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1220
2696	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

description	pid	target process
PID 1220 wrote to memory of 2800	1220	cmstp.exe
PID 1220 wrote to memory of 2800	1220	cmstp.exe
PID 1220 wrote to memory of 2800	1220	cmstp.exe
PID 1220 wrote to memory of 2696	1220	cmstp.exe
PID 1220 wrote to memory of 2696	1220	cmstp.exe
PID 1220 wrote to memory of 2696	1220	cmstp.exe
PID 1220 wrote to memory of 1348	1220	dpapimig.exe
PID 1220 wrote to memory of 1348	1220	dpapimig.exe
PID 1220 wrote to memory of 1348	1220	dpapimig.exe
PID 1220 wrote to memory of 1696	1220	dpapimig.exe
PID 1220 wrote to memory of 1696	1220	dpapimig.exe
PID 1220 wrote to memory of 1696	1220	dpapimig.exe
PID 1220 wrote to memory of 2996	1220	WFS.exe
PID 1220 wrote to memory of 2996	1220	WFS.exe
PID 1220 wrote to memory of 2996	1220	WFS.exe
PID 1220 wrote to memory of 1800	1220	WFS.exe
PID 1220 wrote to memory of 1800	1220	WFS.exe
PID 1220 wrote to memory of 1800	1220	WFS.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\cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2236

C:\Windows\system32\cmstp.exe
C:\Windows\system32\cmstp.exe
1⤵
PID:2800

C:\Users\Admin\AppData\Local\bFjfrEuw\cmstp.exe
C:\Users\Admin\AppData\Local\bFjfrEuw\cmstp.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2696

C:\Windows\system32\dpapimig.exe
C:\Windows\system32\dpapimig.exe
1⤵
PID:1348

C:\Users\Admin\AppData\Local\RemfB7\dpapimig.exe
C:\Users\Admin\AppData\Local\RemfB7\dpapimig.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1696

C:\Windows\system32\WFS.exe
C:\Windows\system32\WFS.exe
1⤵
PID:2996

C:\Users\Admin\AppData\Local\LUwjVt\WFS.exe
C:\Users\Admin\AppData\Local\LUwjVt\WFS.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1800

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\RemfB7\DUI70.dll

Filesize
1.5MB

MD5
fd53c51d153005f62cbee548d22d8368

SHA1
6a18d8bdc77c24ab8871874a9d4d060b95e634f7

SHA256
0d884de96880ef5f2c7cd92a0a672d82595f1853fb79d4b4bbbbf28106a95ef6

SHA512
e5d70d189266e33e154f3e1c534c2cb8b0ea2a4844ed7a0b054773a6e5e0c07c5a84f37a6aa51a4537d0c4b23a80c8c962c66552d0433ea8ffeaa02f2e3f1c63

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

Filesize
1.3MB

MD5
a39bab204f5b7e3610a1ae6d8d9de1ce

SHA1
53c7e57eecfeb5b87b3bd101dfa30b2d8d7c7cf4

SHA256
94113ac0b6db99e144f5fd59457bdd9fd8621f799e30c8a5f2fcfcc7ee89e8ba

SHA512
825bda7f844877a77681d89ff93845f7a7b859c027063f0acf023dfd3bee381ec2b40a09fe940163e58a0e48d1b3f9e54efab6459e0d42982eee4d7c6ff61f1e

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

Filesize
90KB

MD5
74c6da5522f420c394ae34b2d3d677e3

SHA1
ba135738ef1fb2f4c2c6c610be2c4e855a526668

SHA256
51d298b1a8a2d00d5c608c52dba0655565d021e9798ee171d7fa92cc0de729a6

SHA512
bfd76b1c3e677292748f88bf595bfef0b536eb22f2583b028cbf08f6ae4eda1aa3787c4e892aad12b7681fc2363f99250430a0e7019a7498e24db391868e787a

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

Filesize
1KB

MD5
8f7e5bd3d90a34d62be940e99d34361b

SHA1
8a81ec49e2176cae0e8cf677d1255c2f09fd57af

SHA256
dc4e31dbbd1364913ff504f00b67125e9972a66c6b6a8a9999608c2fa748026b

SHA512
2840f87e428413896d71a6a9ba3b26fa78d35e0ed6ab8a0ad48d06b13423d576267d312dfc998847a247b7c9c916ce0a69d66c025bcf09bd55aaf0223a6e991d

Download Submit
\Users\Admin\AppData\Local\LUwjVt\WFS.exe

Filesize
951KB

MD5
a943d670747778c7597987a4b5b9a679

SHA1
c48b760ff9762205386563b93e8884352645ef40

SHA256
1a582ebe780abc1143baccaf4910714d3e9f4195edd86939499d03ed6e756610

SHA512
3d926ddead8afcb32b52b3eb3c416d197c15e5fff6ba9fa03a31a07522bdb9088b32500fc8b98d82af657071571d09cd336a65cf45c485ebcc145dea70b3a934

Download Submit
\Users\Admin\AppData\Local\LUwjVt\credui.dll

Filesize
1.3MB

MD5
ecc0bb568dca593751ddf56be035b19b

SHA1
b4817331b4f2fcd29258eecaff43580a6b202850

SHA256
d974d89eee1a8c1fa92758cc3c13c729e6f3c5289672b5c4b6c5ae42178acf28

SHA512
c6f260a15e8c1ee7d0a1880b0bae411a7930208218241d135e151fce8229461f4b34fa82683220cd459893d59d70e3ff2d1e31b6a3107e7720bcb220a81025ca

Download Submit
\Users\Admin\AppData\Local\RemfB7\dpapimig.exe

Filesize
73KB

MD5
0e8b8abea4e23ddc9a70614f3f651303

SHA1
6d332ba4e7a78039f75b211845514ab35ab467b2

SHA256
66fc6b68e54b8840a38b4de980cc22aed21009afc1494a9cc68e892329f076a1

SHA512
4feded78f9b953472266693e0943030d00f82a5cc8559df60ae0479de281164155e19687afc67cba74d04bb9ad092f5c7732f2d2f9b06274ca2ae87dc2d4a6dc

Download Submit
memory/1220-11-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-7-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-38-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-37-0x00000000021F0000-0x00000000021F7000-memory.dmp

Filesize
28KB

Download
memory/1220-30-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-29-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-27-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-26-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-24-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-23-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-22-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-21-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-20-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-18-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-17-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-16-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-15-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-14-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-13-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-3-0x0000000077AD6000-0x0000000077AD7000-memory.dmp

Filesize
4KB

Download
memory/1220-10-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-9-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-8-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-39-0x0000000077E40000-0x0000000077E42000-memory.dmp

Filesize
8KB

Download
memory/1220-47-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-46-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-55-0x0000000077AD6000-0x0000000077AD7000-memory.dmp

Filesize
4KB

Download
memory/1220-28-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-40-0x0000000077E70000-0x0000000077E72000-memory.dmp

Filesize
8KB

Download
memory/1220-4-0x0000000002210000-0x0000000002211000-memory.dmp

Filesize
4KB

Download
memory/1220-6-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-12-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-19-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1220-25-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/1696-80-0x000007FEF7300000-0x000007FEF7478000-memory.dmp

Filesize
1.5MB

Download
memory/1696-82-0x0000000000180000-0x0000000000187000-memory.dmp

Filesize
28KB

Download
memory/1696-85-0x000007FEF7300000-0x000007FEF7478000-memory.dmp

Filesize
1.5MB

Download
memory/1800-97-0x000007FEF7040000-0x000007FEF7185000-memory.dmp

Filesize
1.3MB

Download
memory/1800-101-0x000007FEF7040000-0x000007FEF7185000-memory.dmp

Filesize
1.3MB

Download
memory/2236-43-0x000007FEF7330000-0x000007FEF7474000-memory.dmp

Filesize
1.3MB

Download
memory/2236-1-0x000007FEF7330000-0x000007FEF7474000-memory.dmp

Filesize
1.3MB

Download
memory/2236-2-0x0000000000190000-0x0000000000197000-memory.dmp

Filesize
28KB

Download
memory/2696-68-0x000007FEF7FA0000-0x000007FEF80E5000-memory.dmp

Filesize
1.3MB

Download
memory/2696-63-0x0000000000300000-0x0000000000307000-memory.dmp

Filesize
28KB

Download
memory/2696-64-0x000007FEF7FA0000-0x000007FEF80E5000-memory.dmp

Filesize
1.3MB

Download