dridex | cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16

Analysis

max time kernel
119s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
behavioral2/memory/3496-4-0x0000000001500000-0x0000000001501000-memory.dmp	dridex_stager_shellcode

Dridex payload 11 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral2/memory/1376-1-0x00007FF90BB30000-0x00007FF90BC74000-memory.dmp	dridex_payload
behavioral2/memory/3496-49-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral2/memory/3496-38-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral2/memory/3496-30-0x0000000140000000-0x0000000140144000-memory.dmp	dridex_payload
behavioral2/memory/1376-52-0x00007FF90BB30000-0x00007FF90BC74000-memory.dmp	dridex_payload
behavioral2/memory/4140-59-0x00007FF90BB30000-0x00007FF90BC7B000-memory.dmp	dridex_payload
behavioral2/memory/4140-64-0x00007FF90BB30000-0x00007FF90BC7B000-memory.dmp	dridex_payload
behavioral2/memory/3720-75-0x00007FF90B990000-0x00007FF90BAD5000-memory.dmp	dridex_payload
behavioral2/memory/3720-80-0x00007FF90B990000-0x00007FF90BAD5000-memory.dmp	dridex_payload
behavioral2/memory/2828-91-0x00007FF8FC480000-0x00007FF8FC5C5000-memory.dmp	dridex_payload
behavioral2/memory/2828-95-0x00007FF8FC480000-0x00007FF8FC5C5000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

msconfig.exeBitLockerWizard.exedccw.exe

pid	Process
4140	msconfig.exe
3720	BitLockerWizard.exe
2828	dccw.exe

Loads dropped DLL 3 IoCs

Processes:

msconfig.exeBitLockerWizard.exedccw.exe

pid	Process
4140	msconfig.exe
3720	BitLockerWizard.exe
2828	dccw.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Pzfwfhktmuesbir = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\INTERN~1\\UserData\\x1jqcO\\BITLOC~1.EXE"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

rundll32.exemsconfig.exeBitLockerWizard.exedccw.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	msconfig.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	BitLockerWizard.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	dccw.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	Process
1376	rundll32.exe
1376	rundll32.exe
1376	rundll32.exe
1376	rundll32.exe
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496
3496

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	procid_target
PID 3496 wrote to memory of 3544	3496	86
PID 3496 wrote to memory of 3544	3496	86
PID 3496 wrote to memory of 4140	3496	88
PID 3496 wrote to memory of 4140	3496	88
PID 3496 wrote to memory of 1584	3496	94
PID 3496 wrote to memory of 1584	3496	94
PID 3496 wrote to memory of 3720	3496	95
PID 3496 wrote to memory of 3720	3496	95
PID 3496 wrote to memory of 3560	3496	100
PID 3496 wrote to memory of 3560	3496	100
PID 3496 wrote to memory of 2828	3496	101
PID 3496 wrote to memory of 2828	3496	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\cf452b975bb4617d0a03895ada2801ca63cb47fb755f585ab878654bc7573e16.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1376

C:\Windows\system32\msconfig.exe
C:\Windows\system32\msconfig.exe
1⤵
PID:3544

C:\Users\Admin\AppData\Local\JKOx\msconfig.exe
C:\Users\Admin\AppData\Local\JKOx\msconfig.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4140

C:\Windows\system32\BitLockerWizard.exe
C:\Windows\system32\BitLockerWizard.exe
1⤵
PID:1584

C:\Users\Admin\AppData\Local\BYEf\BitLockerWizard.exe
C:\Users\Admin\AppData\Local\BYEf\BitLockerWizard.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3720

C:\Windows\system32\dccw.exe
C:\Windows\system32\dccw.exe
1⤵
PID:3560

C:\Users\Admin\AppData\Local\VIP2nr\dccw.exe
C:\Users\Admin\AppData\Local\VIP2nr\dccw.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2828

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\BYEf\BitLockerWizard.exe

Filesize
100KB

MD5
6d30c96f29f64b34bc98e4c81d9b0ee8

SHA1
4a3adc355f02b9c69bdbe391bfb01469dee15cf0

SHA256
7758227642702e645af5e84d1c0e5690e07687c8209072a2c5f79379299edf74

SHA512
25471b0ac7156d9ee9d12181020039bf551ba3efe252b656030c12d93b8db2648a18bdf762740f2a5cd8e43640e4bd4e8742310dea15823fc76b9e1c126876b8

Download Submit
C:\Users\Admin\AppData\Local\BYEf\FVEWIZ.dll

Filesize
1.3MB

MD5
81550e6a2ff9f4a37c53e7f1874b65f3

SHA1
458e1932575dca73d91db7c50ba3a7d4f2838478

SHA256
bee82907913c4f966a0161509db3452d83590c7ffaaf50bf4c562b4a27861794

SHA512
e2ac7f22f2410fb21a7a254931529912a5b06aa535140df0dbb3814415f3b06c3a0c56798f15d3b09c2444a8c00782d4512b68126a53a3316c7552493eec91ed

Download Submit
C:\Users\Admin\AppData\Local\JKOx\MFC42u.dll

Filesize
1.3MB

MD5
c733aefb94bd366b919240fc7a6aa078

SHA1
2dab8993bc29754ae5e03b3c7d5726e1038710b1

SHA256
20cf93b670f7a043a5e0df95c6e569f9fa30d8e759da924cc55632709543c1bb

SHA512
b7e153a2f097494be8163b92991da32c478dc3a909b54b9b839f00e4491da93b538a2916bb19f221e3d217e35aae5351b2bc78578ca20357e372a558f54e08ac

Download Submit
C:\Users\Admin\AppData\Local\JKOx\msconfig.exe

Filesize
193KB

MD5
39009536cafe30c6ef2501fe46c9df5e

SHA1
6ff7b4d30f31186de899665c704a105227704b72

SHA256
93d2604f7fdf7f014ac5bef63ab177b6107f3cfc26da6cbd9a7ab50c96564a04

SHA512
95c9a8bc61c79108634f5578825544323e3d980ae97a105a325c58bc0e44b1d500637459969602f08d6d23d346baec6acd07d8351803981000c797190d48f03a

Download Submit
C:\Users\Admin\AppData\Local\VIP2nr\dccw.exe

Filesize
101KB

MD5
cb9374911bf5237179785c739a322c0f

SHA1
3f4d3dd3d58c9f19dfbb414ded16969ebd9f74b9

SHA256
f7f3300b78148a34f6a35796c777a832b638b6d3193e11f4a37f45d4c6dfa845

SHA512
9d47521538148b1823c0a17baa86ddf932f06f46d5d8b63fa87b2cc220fb98ce3f933e32d771222937bb8e41c88030839d489d1cd78b062bffeb2980dc6864be

Download Submit
C:\Users\Admin\AppData\Local\VIP2nr\dxva2.dll

Filesize
1.3MB

MD5
1fdaaac9b6ab8add1b6a084d50117b45

SHA1
495d5e470268058d2890f8c2385e5d3ecb369031

SHA256
272a491add519ac2920442259ed55396cc2a5e9c3007a4cad1b4da9604f6bcd7

SHA512
b2eb308dba575bcbfe310de3da779473078892e4758c1ff60f3224e109d8b19353cbcd2ab28392345ea9b0e856f131937a32923e115b1857eeac2a05b57eb393

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

Filesize
1KB

MD5
6d81bf5de634a62cb93b98117fa4bb26

SHA1
028150c269a201f8c6a90753675ebdcbbe1b7abe

SHA256
3903fd3dd773cc005a3d8c1a8111a7870ca9b4974a4a6269263686e64b35d0ea

SHA512
1ecde20a4e99b4d69bf86bf889ffa775bded250e3b82c35cac9e30f15f273ac27c0b49dd371d7885343fdcaa7fa675921e540a93fef2d98c4323104b4fa07644

Download Submit
memory/1376-1-0x00007FF90BB30000-0x00007FF90BC74000-memory.dmp

Filesize
1.3MB

Download
memory/1376-0-0x000001D5DBE30000-0x000001D5DBE37000-memory.dmp

Filesize
28KB

Download
memory/1376-52-0x00007FF90BB30000-0x00007FF90BC74000-memory.dmp

Filesize
1.3MB

Download
memory/2828-95-0x00007FF8FC480000-0x00007FF8FC5C5000-memory.dmp

Filesize
1.3MB

Download
memory/2828-91-0x00007FF8FC480000-0x00007FF8FC5C5000-memory.dmp

Filesize
1.3MB

Download
memory/3496-29-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-14-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-26-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-25-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-24-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-23-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-22-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-21-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-20-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-19-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-18-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-15-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-16-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-13-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-12-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-11-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-9-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-8-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-7-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-28-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-10-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-6-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-30-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-38-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-39-0x00007FF91AA00000-0x00007FF91AA10000-memory.dmp

Filesize
64KB

Download
memory/3496-3-0x00007FF91A96A000-0x00007FF91A96B000-memory.dmp

Filesize
4KB

Download
memory/3496-4-0x0000000001500000-0x0000000001501000-memory.dmp

Filesize
4KB

Download
memory/3496-17-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-40-0x00007FF91A9F0000-0x00007FF91AA00000-memory.dmp

Filesize
64KB

Download
memory/3496-49-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-27-0x0000000140000000-0x0000000140144000-memory.dmp

Filesize
1.3MB

Download
memory/3496-37-0x00000000014C0000-0x00000000014C7000-memory.dmp

Filesize
28KB

Download
memory/3720-80-0x00007FF90B990000-0x00007FF90BAD5000-memory.dmp

Filesize
1.3MB

Download
memory/3720-75-0x00007FF90B990000-0x00007FF90BAD5000-memory.dmp

Filesize
1.3MB

Download
memory/3720-77-0x00000117284A0000-0x00000117284A7000-memory.dmp

Filesize
28KB

Download
memory/4140-64-0x00007FF90BB30000-0x00007FF90BC7B000-memory.dmp

Filesize
1.3MB

Download
memory/4140-61-0x0000020B43EB0000-0x0000020B43EB7000-memory.dmp

Filesize
28KB

Download
memory/4140-59-0x00007FF90BB30000-0x00007FF90BC7B000-memory.dmp

Filesize
1.3MB

Download