dridex | 74a551c38c3165128be5e8c58766a1c57d38b7183f6c9977cd1eeadce159a00f

General

Target

265666_BOL.xlsm
Size

35KB
MD5

a9571044e94878cf4f9799c033305fb8
SHA1

86429d5ad991da1773fe4f485f7eea142ab5f00a
SHA256

74a551c38c3165128be5e8c58766a1c57d38b7183f6c9977cd1eeadce159a00f
SHA512

dad015bffb5d383139f462f6b55de7e3d7844d8bbf65d9a542e41b7489e404b3d22f89508f022d97a61875ecbeeae0918b91d9023a5a5cecc69ff1fdb246bdac

Score

10^/10

dridex 10444 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

210.65.244.184:443

147.78.186.4:10051

62.75.168.152:6601

rc4.plain

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1676	496	regsvr32.exe	EXCEL.EXE

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/1824-11-0x0000000073640000-0x000000007367D000-memory.dmp	dridex_ldr
behavioral2/memory/1824-12-0x0000000073640000-0x000000007367D000-memory.dmp	dridex_ldr

Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1824 regsvr32.exe

pid	process
1824	regsvr32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

496 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

EXCEL.EXEregsvr32.exe

description	pid	process	target process
PID 496 wrote to memory of 1676	496	EXCEL.EXE	regsvr32.exe
PID 496 wrote to memory of 1676	496	EXCEL.EXE	regsvr32.exe
PID 1676 wrote to memory of 1824	1676	regsvr32.exe	regsvr32.exe
PID 1676 wrote to memory of 1824	1676	regsvr32.exe	regsvr32.exe
PID 1676 wrote to memory of 1824	1676	regsvr32.exe	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\265666_BOL.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" -s C:\Users\Admin\AppData\Local\Temp\jwvlpym.dll
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\regsvr32.exe
-s C:\Users\Admin\AppData\Local\Temp\jwvlpym.dll
3⤵
- Loads dropped DLL
PID:1824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\jwvlpym.dll

MD5
605ed4c03630d8099709fe3218d2bf47

SHA1
c6f7fe3ee95d11327ebf4c091c7a07b60ba73aae

SHA256
7f26e224039333b19dd1863bf1a77f79154e677b8c725e56beb9d93d3d43874b

SHA512
d634f48feda791ffc733e996aeec264861c3b2b43e2b16d9d786f746741026616fb2e4cb45a562aa11f539813472f8b3302805429c23343aad7cb86f4beacf54

Download Submit
\Users\Admin\AppData\Local\Temp\jwvlpym.dll

MD5
605ed4c03630d8099709fe3218d2bf47

SHA1
c6f7fe3ee95d11327ebf4c091c7a07b60ba73aae

SHA256
7f26e224039333b19dd1863bf1a77f79154e677b8c725e56beb9d93d3d43874b

SHA512
d634f48feda791ffc733e996aeec264861c3b2b43e2b16d9d786f746741026616fb2e4cb45a562aa11f539813472f8b3302805429c23343aad7cb86f4beacf54

Download Submit
memory/496-2-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-3-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-4-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-5-0x00007FF7E5FB0000-0x00007FF7E5FC0000-memory.dmp

Filesize
64KB

Download
memory/496-6-0x00007FF808F50000-0x00007FF809587000-memory.dmp

Filesize
6.2MB

Download
memory/1676-7-0x0000000000000000-mapping.dmp

Download
memory/1824-9-0x0000000000000000-mapping.dmp

Download
memory/1824-11-0x0000000073640000-0x000000007367D000-memory.dmp

Filesize
244KB

Download
memory/1824-12-0x0000000073640000-0x000000007367D000-memory.dmp

Filesize
244KB

Download
memory/1824-13-0x0000000002920000-0x0000000002921000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads