dridex | d98e07cfa7163a044ebc9b5d16bd57ee54030941a9fc1564d76b2f6c655573e4

Analysis

max time kernel
34s
max time network
90s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 16:22

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General

Target
d98e07cfa7163a044ebc9b5d16bd57ee54030941a9fc1564d76b2f6c655573e4.dll
Size 377KB
Sample210331-cxa8pmlht6
SHA256 d98e07cfa7163a044ebc9b5d16bd57ee54030941a9fc1564d76b2f6c655573e4
MD5 cc24b51bfe6ea00851dc764100d10f7e
SHA1 a5287a1302b26be84d8851482455934cec953190
SHA512 ceff353186e56860113038e42ac265ccc6c13d1ff006f11e12b6bb73d9d1454e6d26e8bdcd7a75d73a327134a7c86c0bcf2fdc0799ccbd7dfa2ee65316fe9f15
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1840-4-0x0000000074480000-0x00000000744BD000-memory.dmp	dridex_ldr
behavioral1/memory/1840-5-0x0000000074480000-0x00000000744BD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1840	rundll32.exe
8	1840	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25
PID 736 wrote to memory of 1840	736	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d98e07cfa7163a044ebc9b5d16bd57ee54030941a9fc1564d76b2f6c655573e4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d98e07cfa7163a044ebc9b5d16bd57ee54030941a9fc1564d76b2f6c655573e4.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1312-7-0x000007FEF5BD0000-0x000007FEF5E4A000-memory.dmp

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memory/1840-3-0x00000000753E1000-0x00000000753E3000-memory.dmp

Download

memory/1840-4-0x0000000074480000-0x00000000744BD000-memory.dmp

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memory/1840-5-0x0000000074480000-0x00000000744BD000-memory.dmp

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memory/1840-6-0x0000000000130000-0x0000000000131000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads