dridex | b7145f389fc79052d20e54ce49b5b51194dccd385e08850eb11dc068d6ba6e4c

General

Target

b7145f389fc79052d20e54ce49b5b51194dccd385e08850eb11dc068d6ba6e4c.dll
Size

940KB
MD5

6767a3a501338fa1e0d20387797baa25
SHA1

3b3b1b8514899ce981e091b1f10c5981e2276e39
SHA256

b7145f389fc79052d20e54ce49b5b51194dccd385e08850eb11dc068d6ba6e4c
SHA512

8571d5e0b210cac49012909d6e326b5bfd47718f115d63c23f540ff79a9d32f7bb1ada10d5b65248d99a7789eadbd4db823fe40dfffbbdc4af6c67affe431118
SSDEEP

12288:YPVKLvdxQPKSoVXxTaGcb68Uzx2TBeOWhZJpK8:YtKTrsKSKBTSb6DUXWq8

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
behavioral1/memory/1192-4-0x0000000002AE0000-0x0000000002AE1000-memory.dmp	dridex_stager_shellcode

Dridex payload 9 IoCs

Detects Dridex x64 core DLL in memory.

botnet payload

Processes:

resource	yara_rule
behavioral1/memory/2728-0-0x0000000140000000-0x00000001400EB000-memory.dmp	dridex_payload
behavioral1/memory/1192-24-0x0000000140000000-0x00000001400EB000-memory.dmp	dridex_payload
behavioral1/memory/1192-37-0x0000000140000000-0x00000001400EB000-memory.dmp	dridex_payload
behavioral1/memory/1192-36-0x0000000140000000-0x00000001400EB000-memory.dmp	dridex_payload
behavioral1/memory/2728-44-0x0000000140000000-0x00000001400EB000-memory.dmp	dridex_payload
behavioral1/memory/1376-54-0x0000000140000000-0x00000001400EC000-memory.dmp	dridex_payload
behavioral1/memory/1376-58-0x0000000140000000-0x00000001400EC000-memory.dmp	dridex_payload
behavioral1/memory/1972-75-0x0000000140000000-0x00000001400EC000-memory.dmp	dridex_payload
behavioral1/memory/1304-91-0x0000000140000000-0x00000001400EC000-memory.dmp	dridex_payload

Executes dropped EXE 3 IoCs

Processes:

cmstp.exeDisplaySwitch.exedvdupgrd.exe

pid process

1376 cmstp.exe
1972 DisplaySwitch.exe
1304 dvdupgrd.exe
Loads dropped DLL 7 IoCs

Processes:

cmstp.exeDisplaySwitch.exedvdupgrd.exe

pid process

1192
1376 cmstp.exe
1192
1972 DisplaySwitch.exe
1192
1304 dvdupgrd.exe
1192

pid	process
1376	cmstp.exe
1972	DisplaySwitch.exe
1304	dvdupgrd.exe

pid	process
1192
1376	cmstp.exe
1192
1972	DisplaySwitch.exe
1192
1304	dvdupgrd.exe
1192

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kccgsbu = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SendTo\\ydLXYdh\\DisplaySwitch.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

rundll32.execmstp.exeDisplaySwitch.exedvdupgrd.exe

description	ioc	process
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	cmstp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DisplaySwitch.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	dvdupgrd.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.execmstp.exe

pid	process
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1192
1376	cmstp.exe
1376	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

description	pid	target process
PID 1192 wrote to memory of 1152	1192	cmstp.exe
PID 1192 wrote to memory of 1152	1192	cmstp.exe
PID 1192 wrote to memory of 1152	1192	cmstp.exe
PID 1192 wrote to memory of 1376	1192	cmstp.exe
PID 1192 wrote to memory of 1376	1192	cmstp.exe
PID 1192 wrote to memory of 1376	1192	cmstp.exe
PID 1192 wrote to memory of 1964	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 1964	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 1964	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 1972	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 1972	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 1972	1192	DisplaySwitch.exe
PID 1192 wrote to memory of 2100	1192	dvdupgrd.exe
PID 1192 wrote to memory of 2100	1192	dvdupgrd.exe
PID 1192 wrote to memory of 2100	1192	dvdupgrd.exe
PID 1192 wrote to memory of 1304	1192	dvdupgrd.exe
PID 1192 wrote to memory of 1304	1192	dvdupgrd.exe
PID 1192 wrote to memory of 1304	1192	dvdupgrd.exe

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\b7145f389fc79052d20e54ce49b5b51194dccd385e08850eb11dc068d6ba6e4c.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2728

C:\Windows\system32\cmstp.exe
C:\Windows\system32\cmstp.exe
1⤵
PID:1152

C:\Users\Admin\AppData\Local\TLJBeMXs\cmstp.exe
C:\Users\Admin\AppData\Local\TLJBeMXs\cmstp.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1376

C:\Windows\system32\DisplaySwitch.exe
C:\Windows\system32\DisplaySwitch.exe
1⤵
PID:1964

C:\Users\Admin\AppData\Local\S7zHf6\DisplaySwitch.exe
C:\Users\Admin\AppData\Local\S7zHf6\DisplaySwitch.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1972

C:\Windows\system32\dvdupgrd.exe
C:\Windows\system32\dvdupgrd.exe
1⤵
PID:2100

C:\Users\Admin\AppData\Local\66ir1KNSw\dvdupgrd.exe
C:\Users\Admin\AppData\Local\66ir1KNSw\dvdupgrd.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Accessibility Features

1

T1546.008

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Accessibility Features

1

T1546.008

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\66ir1KNSw\VERSION.dll

Filesize
944KB

MD5
059d4713fbd28e2405e744d533b8a22a

SHA1
0e978fd33ade0e3c0a4e5db429b829b53768a3d8

SHA256
c2102a1ed19441cc60ce3503de21c998c58191dfa8e48efe0cf87a9541f2b43c

SHA512
ace990522884806489814598799e231fee76aa089ba5205b3a210e549ecae0feb504995a62006380bc61be2d0d8cdb49ccafa364f2840fbfc434843ade3a98e5

Download Submit
C:\Users\Admin\AppData\Local\S7zHf6\slc.dll

Filesize
944KB

MD5
6790b10e99d9d2e6a522464998d5cbc6

SHA1
e343d665024cee0d2c1a4510cc4a274d6f06b827

SHA256
2346fc4844435925cd653bead0d01704321843868528a4b458663270a0d55727

SHA512
bcc9a35c232f2acd8948a7bc05c487ff5b40ceab558755d86331574a7f7b36d3aa3de6c5a4fe79aa50275e9a265af1a0b6628e94cde0cf3e2226cadbb3f1b990

Download Submit
C:\Users\Admin\AppData\Local\TLJBeMXs\VERSION.dll

Filesize
944KB

MD5
3e3b91602bee6813223f4e2111fe97f2

SHA1
7335ab28cc778e59b43d31f33e6826d0264b875b

SHA256
7f5120a5a1d5aaa7aa6cf8d6c64371e683b9a72f17aab03409fa9b181b18a620

SHA512
69cec60e0deb63dd18950d11a0650c848c4b8493f68b226d67dad1f9ba29f67640ab2ff6b301fbf71a32ca0b1ac7cc4e29feec7332d8b4b1361769682463f70c

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

Filesize
1KB

MD5
0187065aecf30ecf1b16c48733a30e1a

SHA1
eb8491fe0034742d802210bf40024bacf45f93df

SHA256
81248f8d9e7f7db6ca17ea176b9a415f1e93b2d2f5f1a9945015c75f3914ce3b

SHA512
9b1bd6bda928d7e9179df31f7a623e69a86216be624f23a53f377530f545e47cdfc6e4a3f91ee367fe3976f87caa1aa7be54cb248200ace69114679c237b5ed0

Download Submit
\Users\Admin\AppData\Local\66ir1KNSw\dvdupgrd.exe

Filesize
25KB

MD5
75a9b4172eac01d9648c6d2133af952f

SHA1
63c7e1af762d2b584e9cc841e8b0100f2a482b81

SHA256
18f9f520c7157023b0e7dfe7433a63c4dedd47b04d24aac4038b795893050736

SHA512
5a7a2c7f184efd9c84256a1a0a5e7aeb95432d63a567196be54e7a9437a5ada9b922983c5fc0cafb16eab4493665d8e56e2f646f9f6a2d6179986925ffcdf769

Download Submit
\Users\Admin\AppData\Local\S7zHf6\DisplaySwitch.exe

Filesize
517KB

MD5
b795e6138e29a37508285fc31e92bd78

SHA1
d0fe0c38c7c61adbb77e58d48b96cd4bf98ecd4a

SHA256
01a9733871baa8518092bade3fce62dcca14cdf6fc55b98218253580b38d7659

SHA512
8312174a77bab5fef7c4e9efff66c43d3515b02f5766ed1d3b9bd0abb3d7344a9a22cbac228132098428c122293d2b1898b3a2d75f5e4247b1dcb9aa9c7913b1

Download Submit
\Users\Admin\AppData\Local\TLJBeMXs\cmstp.exe

Filesize
90KB

MD5
74c6da5522f420c394ae34b2d3d677e3

SHA1
ba135738ef1fb2f4c2c6c610be2c4e855a526668

SHA256
51d298b1a8a2d00d5c608c52dba0655565d021e9798ee171d7fa92cc0de729a6

SHA512
bfd76b1c3e677292748f88bf595bfef0b536eb22f2583b028cbf08f6ae4eda1aa3787c4e892aad12b7681fc2363f99250430a0e7019a7498e24db391868e787a

Download Submit
memory/1192-26-0x0000000076F20000-0x0000000076F22000-memory.dmp

Filesize
8KB

Download
memory/1192-3-0x0000000076B86000-0x0000000076B87000-memory.dmp

Filesize
4KB

Download
memory/1192-24-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-14-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-12-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-11-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-10-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-9-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-8-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-23-0x0000000002AC0000-0x0000000002AC7000-memory.dmp

Filesize
28KB

Download
memory/1192-25-0x0000000076EF0000-0x0000000076EF2000-memory.dmp

Filesize
8KB

Download
memory/1192-37-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-36-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-6-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-45-0x0000000076B86000-0x0000000076B87000-memory.dmp

Filesize
4KB

Download
memory/1192-15-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-13-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1192-4-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

Filesize
4KB

Download
memory/1192-7-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/1304-91-0x0000000140000000-0x00000001400EC000-memory.dmp

Filesize
944KB

Download
memory/1376-58-0x0000000140000000-0x00000001400EC000-memory.dmp

Filesize
944KB

Download
memory/1376-54-0x0000000140000000-0x00000001400EC000-memory.dmp

Filesize
944KB

Download
memory/1376-53-0x0000000000090000-0x0000000000097000-memory.dmp

Filesize
28KB

Download
memory/1972-72-0x0000000000190000-0x0000000000197000-memory.dmp

Filesize
28KB

Download
memory/1972-75-0x0000000140000000-0x00000001400EC000-memory.dmp

Filesize
944KB

Download
memory/2728-44-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download
memory/2728-2-0x00000000001A0000-0x00000000001A7000-memory.dmp

Filesize
28KB

Download
memory/2728-0-0x0000000140000000-0x00000001400EB000-memory.dmp

Filesize
940KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads