dridex | b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9

Analysis

max time kernel
97s
max time network
111s
platform
windows10_x64
resource
win10v20210408
submitted
19-04-2021 18:04

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General

Target

b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll
Size

923KB
MD5

cbe2a12eabe721f6dd9ffae21c36a9e6
SHA1

d0c99bcfaedbd1908db9159d8ac8bd1c4e512b0b
SHA256

b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9
SHA512

13f346798766c9209dd340267745228347435adeb3f90b3e04a335bda0ac97161dace302703ccfcbdd7a20b805bbfc5c93d821fbbf00bf64ce4503bd9448c77b

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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

Processes:

resource	yara_rule
behavioral2/memory/1420-115-0x0000000074190000-0x00000000741CD000-memory.dmp	dridex_ldr
behavioral2/memory/1420-116-0x0000000074190000-0x0000000074290000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

17 1420 rundll32.exe
19 1420 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

Processes:

rundll32.exe

description ioc process

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

flow	pid	process
17	1420	rundll32.exe
19	1420	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 424 wrote to memory of 1420	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 1420	424	rundll32.exe	rundll32.exe
PID 424 wrote to memory of 1420	424	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:424

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e63803275284eaa76e1724088afb26f0c328413313b0a10ccb7050f94444c9.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1420

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1420-114-0x0000000000000000-mapping.dmp

Download
memory/1420-115-0x0000000074190000-0x00000000741CD000-memory.dmp

Filesize
244KB

Download
memory/1420-116-0x0000000074190000-0x0000000074290000-memory.dmp

Filesize
1024KB

Download
memory/1420-117-0x0000000003320000-0x0000000003321000-memory.dmp

Filesize
4KB

Download