dridex | c7df6924710bd79de0a0bd5397659f925148fed9a567c0abde60a0432cb80bee

Analysis

max time kernel
29s
max time network
116s
platform
windows10_x64
resource
win10v20210410
submitted
26-04-2021 14:25

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General

Target

hNrs45j2n3mLRl0.php.dll
Size

160KB
MD5

86c9a71bbf9af242abc7e7d81fd25d06
SHA1

52ed6deb879e77400e0d643dc8a11dfe94553c08
SHA256

c7df6924710bd79de0a0bd5397659f925148fed9a567c0abde60a0432cb80bee
SHA512

7c396b444c74c4c30f3e82b29d9d073ca90f085b98b72528c3de5fd524e4387a7ea7627e7a043b0458689c007736a9347479f66ec45637234737dbb50ea8436d

Score

10^/10

dridex 40111 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

40111

185.148.168.240:443

162.216.125.131:2303

193.200.130.178:8172

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
behavioral2/memory/3120-115-0x0000000074300000-0x000000007432E000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3896 3120 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3896	3120	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe
3896	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3896 WerFault.exe
Token: SeBackupPrivilege 3896 WerFault.exe
Token: SeDebugPrivilege 3896 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3896	WerFault.exe
Token: SeBackupPrivilege	3896	WerFault.exe
Token: SeDebugPrivilege	3896	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3876 wrote to memory of 3120	3876	rundll32.exe	rundll32.exe
PID 3876 wrote to memory of 3120	3876	rundll32.exe	rundll32.exe
PID 3876 wrote to memory of 3120	3876	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hNrs45j2n3mLRl0.php.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3876

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hNrs45j2n3mLRl0.php.dll,#1
2⤵
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 716
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3896

Network

MITRE ATT&CK Matrix

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Downloads

memory/3120-114-0x0000000000000000-mapping.dmp

Download
memory/3120-115-0x0000000074300000-0x000000007432E000-memory.dmp

Filesize
184KB

Download
memory/3120-117-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

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