dridex | b4498fa0a743bdcc9d6bb3fb7d55927200b9ed212f3141b0b5e8380bbcb1547f

Analysis

max time kernel
114s
max time network
116s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:11

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General

Target

b4498fa0a743bdcc9d6bb3fb7d55927200b9ed212f3141b0b5e8380bbcb1547f.dll
Size

157KB
MD5

4123ffd60f4d6342f5c7f33136b142eb
SHA1

a6e5f9b789bbcdf843091bd734d980d7a5255e61
SHA256

b4498fa0a743bdcc9d6bb3fb7d55927200b9ed212f3141b0b5e8380bbcb1547f
SHA512

a4c8114a71029f8bdcf5f9a7bd7f98c681837071494393eee1ee18cc86a00bf446f500efda10626990d29f776a24f4f2cd2cac5cd196e9b2713171efa7bb28e4

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

rc4.plain

Signatures

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

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/772-115-0x0000000073BF0000-0x0000000073C1D000-memory.dmp	dridex_ldr

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

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 3152 wrote to memory of 772	3152	rundll32.exe	rundll32.exe
PID 3152 wrote to memory of 772	3152	rundll32.exe	rundll32.exe
PID 3152 wrote to memory of 772	3152	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4498fa0a743bdcc9d6bb3fb7d55927200b9ed212f3141b0b5e8380bbcb1547f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3152

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4498fa0a743bdcc9d6bb3fb7d55927200b9ed212f3141b0b5e8380bbcb1547f.dll,#1
2⤵
- Checks whether UAC is enabled
PID:772

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/772-114-0x0000000000000000-mapping.dmp

Download
memory/772-115-0x0000000073BF0000-0x0000000073C1D000-memory.dmp

Filesize
180KB

Download
memory/772-117-0x0000000002A00000-0x0000000002AAE000-memory.dmp

Filesize
696KB

Download