dridex | 3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62

Analysis

max time kernel
37s
max time network
98s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 15:31

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General

Target
3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll
Size 188KB
Sample210224-4tml7ng3r2
SHA256 3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62
MD5 c4e1048c5b4525aaf02166d50e0ffbfa
SHA1 977d47ff895917dd896391064da76c1d8a96486d
SHA512 74b1ff0af063e197376a23e31c23f16791ae006a13c2aa154e4498966d9c610a2a7facc1d611fe6abf2c157ebd7f023befba9331cd70a26c1a4e4e1ead4c535a
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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/1052-5-0x00000000747A0000-0x00000000747D1000-memory.dmp	dridex_ldr
behavioral1/memory/1052-7-0x00000000747A0000-0x00000000747BF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	1052	rundll32.exe
7	1052	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 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25
PID 1752 wrote to memory of 1052	1752	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1052

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/848-8-0x000007FEF7160000-0x000007FEF73DA000-memory.dmp

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memory/1052-3-0x0000000075EB1000-0x0000000075EB3000-memory.dmp

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memory/1052-4-0x0000000074430000-0x00000000745D3000-memory.dmp

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memory/1052-5-0x00000000747A0000-0x00000000747D1000-memory.dmp

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memory/1052-6-0x0000000000110000-0x0000000000116000-memory.dmp

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memory/1052-7-0x00000000747A0000-0x00000000747BF000-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