dridex | 561f41e1bb21a3e96a3497b1ac70f8dd0026946d928d7757b659ca8518fe2f48

Analysis

max time kernel
149s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 10:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ef9282ff41251164cb2b293d8ebe082f_JaffaCakes118.dll
Size

1.4MB
MD5

ef9282ff41251164cb2b293d8ebe082f
SHA1

01f039edc40c69125d5c04be228eb6f7a23fb931
SHA256

561f41e1bb21a3e96a3497b1ac70f8dd0026946d928d7757b659ca8518fe2f48
SHA512

988b9f019112ce40c3c6cf7a2528ff094eb4684ced6310232d9b5326bb07e23136447a4107e961b9237bd292d3009857b15132e01256b2e89a661305e45d99d2
SSDEEP

24576:muYfg4LhHr4NFXKJO1aUiDBvZ2+ITHmpclO9NaiH/:G9cKrUqZWLAcU

Score

10^/10

dridex botnet evasion payload persistence privilege_escalation trojan

Malware Config

Signatures

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

Dridex Shellcode 1 IoCs

Detects Dridex Payload shellcode injected in Explorer process.

botnet payload

Processes:

resource	yara_rule
behavioral2/memory/3516-4-0x00000000027D0000-0x00000000027D1000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

Processes:

mspaint.exesethc.exeunregmp2.exe

pid	Process
4964	mspaint.exe
4476	sethc.exe
2580	unregmp2.exe

Loads dropped DLL 3 IoCs

Processes:

mspaint.exesethc.exeunregmp2.exe

pid	Process
4964	mspaint.exe
4476	sethc.exe
2580	unregmp2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Zsovh = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\NjF4\\sethc.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

unregmp2.exerundll32.exemspaint.exesethc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	unregmp2.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mspaint.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	sethc.exe

Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
persistence privilege_escalation

Accessibility Features
T1546.008

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	Process
2560	rundll32.exe
2560	rundll32.exe
2560	rundll32.exe
2560	rundll32.exe
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516
3516

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	procid_target
PID 3516 wrote to memory of 2316	3516	89
PID 3516 wrote to memory of 2316	3516	89
PID 3516 wrote to memory of 4964	3516	90
PID 3516 wrote to memory of 4964	3516	90
PID 3516 wrote to memory of 4056	3516	91
PID 3516 wrote to memory of 4056	3516	91
PID 3516 wrote to memory of 4476	3516	92
PID 3516 wrote to memory of 4476	3516	92
PID 3516 wrote to memory of 1328	3516	93
PID 3516 wrote to memory of 1328	3516	93
PID 3516 wrote to memory of 2580	3516	94
PID 3516 wrote to memory of 2580	3516	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef9282ff41251164cb2b293d8ebe082f_JaffaCakes118.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2560

C:\Windows\system32\mspaint.exe
C:\Windows\system32\mspaint.exe
1⤵
PID:2316

C:\Users\Admin\AppData\Local\cgyXrff5u\mspaint.exe
C:\Users\Admin\AppData\Local\cgyXrff5u\mspaint.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4964

C:\Windows\system32\sethc.exe
C:\Windows\system32\sethc.exe
1⤵
PID:4056

C:\Users\Admin\AppData\Local\Tr7TKw\sethc.exe
C:\Users\Admin\AppData\Local\Tr7TKw\sethc.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4476

C:\Windows\system32\unregmp2.exe
C:\Windows\system32\unregmp2.exe
1⤵
PID:1328

C:\Users\Admin\AppData\Local\67Mhng\unregmp2.exe
C:\Users\Admin\AppData\Local\67Mhng\unregmp2.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\67Mhng\VERSION.dll

Filesize
1.4MB

MD5
4b89f6e04088ebf1e0164fcb8da15fad

SHA1
e3e8ddcf00de176119b926baf8857fcd4fcde8be

SHA256
2c53697e7e5c3bf09cc6a9c9555da95986eb612802569d93e8865717f02236da

SHA512
189949e041f4615d5201295218c77cd8d4afc30b5920d3da1ab44dc1741024232ec512ea870665f741e724fbe00c85a4f8b41b072d156273034c615be84bfa2b

Download Submit
C:\Users\Admin\AppData\Local\67Mhng\unregmp2.exe

Filesize
259KB

MD5
a6fc8ce566dec7c5873cb9d02d7b874e

SHA1
a30040967f75df85a1e3927bdce159b102011a61

SHA256
21f41fea24dddc8a32f902af7b0387a53a745013429d8fd3f5fa6916eadc839d

SHA512
f83e17dd305eb1bc24cca1f197e2440f9b501eafb9c9d44ede7c88b1520030a87d059bdcb8eadeac1eaedabcbc4fe50206821965d73f0f6671e27edd55c01cbc

Download Submit
C:\Users\Admin\AppData\Local\Tr7TKw\UxTheme.dll

Filesize
1.4MB

MD5
c14a8eac8ff10f60464cd1cab2636110

SHA1
0995fc80027a55f8dab632386f284663a74b00b6

SHA256
219712eced8756450c7bb7f434ef99f48fa32acb98b625cb1f44c044ae3030e6

SHA512
9e5b554f7f3ce113486d96683e9f442ba6d25d1514f997b031994cd8023c06c8d4482bff93cc7e3289843082fcec23c4547d4484ae0de50e68dc37ca597d05d3

Download Submit
C:\Users\Admin\AppData\Local\Tr7TKw\sethc.exe

Filesize
104KB

MD5
8ba3a9702a3f1799431cad6a290223a6

SHA1
9c7dc9b6830297c8f759d1f46c8b36664e26c031

SHA256
615b2f2d7e3fce340839a9b54bdc3445eb2333d0fafee477d6113379e90935b8

SHA512
680c216d54f4fd2a14f0398e4461c8340ac15acdca75c36a42083625e1081d5e7d262c4c12296b6f21ba2f593f92816edf1c9a0cf4cbee23588e590713b87746

Download Submit
C:\Users\Admin\AppData\Local\cgyXrff5u\MFC42u.dll

Filesize
1.4MB

MD5
eb19c10eb0fecc111188118f1875a1b1

SHA1
19d1413be4bb9e7f59b66c830faf4bbaf8a39d55

SHA256
24f5ffd73e1c6173a1b713fdceb01dc89e69672707d9a8f262b7e03cbd03ff48

SHA512
9bd8633d33623ea688d375cc714913952f26c76d5557812047ecd32ce53b7f6b59b8acb5b1eb366d0d1036f3c6910b57306871d7d127696c1778f855b93a1afd

Download Submit
C:\Users\Admin\AppData\Local\cgyXrff5u\mspaint.exe

Filesize
965KB

MD5
f221a4ccafec690101c59f726c95b646

SHA1
2098e4b62eaab213cbee73ba40fe4f1b8901a782

SHA256
94aa32a2c9c1d2db78318d9c68262c2f834abe26b6e9a661700324b55fdd5709

SHA512
8e3f4e4f68565ef09f5e762d6bb41b160711bbacac9dfcbe33edea9885fd042e6ce9a248bfcc62f9cffdb8e6bbe1b04c89bd41fcd9a373a5c8bc7bbff96dceaf

Download Submit
C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Sfbjsepzltomqmf.lnk

Filesize
1KB

MD5
eabc59ded29fe9a2f9a8c1724d6b7026

SHA1
f6d2ef392cfefc90fb0537eb31358d14b4e41e71

SHA256
b276a96844f73a50361d8827da627ec277b77b8d9aff1d55f61ede2bd9868472

SHA512
68442af426d206fa4263916828a86f88b22700e6c177839fe80047c18581d211fe96512d1e57ed2513c6daef527c89f2fc31576078a7bebaf29b42f6742007e8

Download Submit
memory/2560-0-0x0000021A961E0000-0x0000021A961E7000-memory.dmp

Filesize
28KB

Download
memory/2560-40-0x00007FFEA1230000-0x00007FFEA13A3000-memory.dmp

Filesize
1.4MB

Download
memory/2560-2-0x00007FFEA1230000-0x00007FFEA13A3000-memory.dmp

Filesize
1.4MB

Download
memory/2580-78-0x00007FFE91C10000-0x00007FFE91D84000-memory.dmp

Filesize
1.5MB

Download
memory/2580-81-0x00000288CA330000-0x00000288CA337000-memory.dmp

Filesize
28KB

Download
memory/2580-84-0x00007FFE91C10000-0x00007FFE91D84000-memory.dmp

Filesize
1.5MB

Download
memory/3516-30-0x0000000000C00000-0x0000000000C07000-memory.dmp

Filesize
28KB

Download
memory/3516-17-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-12-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-11-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-10-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-9-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-8-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-14-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-15-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-37-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-5-0x00007FFEAF4CA000-0x00007FFEAF4CB000-memory.dmp

Filesize
4KB

Download
memory/3516-4-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/3516-7-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-19-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-31-0x00007FFEAFE50000-0x00007FFEAFE60000-memory.dmp

Filesize
64KB

Download
memory/3516-16-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-13-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/3516-26-0x0000000140000000-0x0000000140173000-memory.dmp

Filesize
1.4MB

Download
memory/4476-64-0x00000217575D0000-0x00000217575D7000-memory.dmp

Filesize
28KB

Download
memory/4476-67-0x00007FFE91A60000-0x00007FFE91BD4000-memory.dmp

Filesize
1.5MB

Download
memory/4476-61-0x00007FFE91A60000-0x00007FFE91BD4000-memory.dmp

Filesize
1.5MB

Download
memory/4964-52-0x00007FFE91E70000-0x00007FFE91FEA000-memory.dmp

Filesize
1.5MB

Download
memory/4964-48-0x00007FFE91E70000-0x00007FFE91FEA000-memory.dmp

Filesize
1.5MB

Download
memory/4964-51-0x000001A367AB0000-0x000001A367AB7000-memory.dmp

Filesize
28KB

Download