dridex | 3b7790a2520c63e35ddae8ac5a3aed6c09b16a1a3506d414c6aedfc65cba9b34

General

Target

1a284e601d4b39b13a2c1ea67fe0433b_JaffaCakes118.dll
Size

986KB
MD5

1a284e601d4b39b13a2c1ea67fe0433b
SHA1

396f1bbc283017fe8a3df5bd487d2731e7fe347f
SHA256

3b7790a2520c63e35ddae8ac5a3aed6c09b16a1a3506d414c6aedfc65cba9b34
SHA512

eb7ffe8c4f1da82e188214ed7af8ddd518afb30173cf058ac6ff54176f357fb95f629f36965342b5791dd5b85a82d5a9c8965866f480e356c4adba156f1d3386
SSDEEP

24576:dVHchfFcSTdS1ZikTqpaIJvzSqbY/0Z2ZlECMNXkTlzvmJL8:dV8hf6STw1ZlQauvzSq01ICe6zvm

Score

10^/10

dridex botnet evasion payload persistence 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/3436-4-0x0000000002AE0000-0x0000000002AE1000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

Processes:

SystemSettingsAdminFlows.exerdpshell.exeSppExtComObj.Exe

pid process

5768 SystemSettingsAdminFlows.exe
5724 rdpshell.exe
4524 SppExtComObj.Exe
Loads dropped DLL 3 IoCs

Processes:

SystemSettingsAdminFlows.exerdpshell.exeSppExtComObj.Exe

pid process

5768 SystemSettingsAdminFlows.exe
5724 rdpshell.exe
4524 SppExtComObj.Exe

pid	process
5768	SystemSettingsAdminFlows.exe
5724	rdpshell.exe
4524	SppExtComObj.Exe

pid	process
5768	SystemSettingsAdminFlows.exe
5724	rdpshell.exe
4524	SppExtComObj.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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Iwctvdcrnln = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Office\\Recent\\Prp2VOTi\\rdpshell.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

SystemSettingsAdminFlows.exerdpshell.exeSppExtComObj.Exerundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SystemSettingsAdminFlows.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rdpshell.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SppExtComObj.Exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
4616	rundll32.exe
4616	rundll32.exe
4616	rundll32.exe
4616	rundll32.exe
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
3436
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3436
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3436
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3436
3436
3436
3436
3436
3436
3436
3436

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

description	pid	target process
PID 3436 wrote to memory of 2104	3436	SystemSettingsAdminFlows.exe
PID 3436 wrote to memory of 2104	3436	SystemSettingsAdminFlows.exe
PID 3436 wrote to memory of 5768	3436	SystemSettingsAdminFlows.exe
PID 3436 wrote to memory of 5768	3436	SystemSettingsAdminFlows.exe
PID 3436 wrote to memory of 3736	3436	rdpshell.exe
PID 3436 wrote to memory of 3736	3436	rdpshell.exe
PID 3436 wrote to memory of 5724	3436	rdpshell.exe
PID 3436 wrote to memory of 5724	3436	rdpshell.exe
PID 3436 wrote to memory of 1636	3436	SppExtComObj.Exe
PID 3436 wrote to memory of 1636	3436	SppExtComObj.Exe
PID 3436 wrote to memory of 4524	3436	SppExtComObj.Exe
PID 3436 wrote to memory of 4524	3436	SppExtComObj.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\1a284e601d4b39b13a2c1ea67fe0433b_JaffaCakes118.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:4616

C:\Windows\system32\SystemSettingsAdminFlows.exe
C:\Windows\system32\SystemSettingsAdminFlows.exe
1⤵
PID:2104

C:\Users\Admin\AppData\Local\Sso8n7qgT\SystemSettingsAdminFlows.exe
C:\Users\Admin\AppData\Local\Sso8n7qgT\SystemSettingsAdminFlows.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:5768

C:\Windows\system32\rdpshell.exe
C:\Windows\system32\rdpshell.exe
1⤵
PID:3736

C:\Users\Admin\AppData\Local\GmB\rdpshell.exe
C:\Users\Admin\AppData\Local\GmB\rdpshell.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:5724

C:\Windows\system32\SppExtComObj.Exe
C:\Windows\system32\SppExtComObj.Exe
1⤵
PID:1636

C:\Users\Admin\AppData\Local\C2Yex\SppExtComObj.Exe
C:\Users\Admin\AppData\Local\C2Yex\SppExtComObj.Exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4524

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\C2Yex\ACTIVEDS.dll

Filesize
987KB

MD5
972d588fed89ed5d5e26b95b2b89baf0

SHA1
672993fc7474e1592c86ad8c23dd3ed30cebed12

SHA256
e530ac70cbc608133caabfd769b324da2a2fc7d8ebcd45635086ad7371be6222

SHA512
1ff9371584cb65fffeac5f506cdb2a5fa1361fd98937810cee127cea7958005f10baffd0e2e65cf3e4037547e5139c15e824e872c74900425d894ea82ce7acdd

Download Submit
C:\Users\Admin\AppData\Local\C2Yex\SppExtComObj.Exe

Filesize
559KB

MD5
728a78909aa69ca0e976e94482350700

SHA1
6508dfcbf37df25cae8ae68cf1fcd4b78084abb7

SHA256
2a6581576305771044f07ea0fef27f77859996dbf66c2017e938f90bfc1e010c

SHA512
22bf985e71afa58a1365cc733c0aa03dabd4b44e7c6a136eb5f9b870db14470201b4ef88a19fa3864af6c44e79e1a01d6f8806062d9d4861ba7dac77d82074f1

Download Submit
C:\Users\Admin\AppData\Local\GmB\dwmapi.dll

Filesize
988KB

MD5
18bc3fd089fd7e3c85f6b57b9587bdb3

SHA1
97f155f18698f646dbebe3e73d671b84742aed1b

SHA256
244ded450ab1cf7fcb3342cef2d2a73b6266f4feb2ea580de7ad11bfbb618fc9

SHA512
fa3d9dd5977e3b8b315ac60047459ad3b6433e95fc94aaf4489caf28f6c24716cdcd0b575f0b91abf65d51452a204b7decab103239e7a06afaa25cc38fee2cbb

Download Submit
C:\Users\Admin\AppData\Local\GmB\rdpshell.exe

Filesize
468KB

MD5
428066713f225bb8431340fa670671d4

SHA1
47f6878ff33317c3fc09c494df729a463bda174c

SHA256
da6c395a2018d3439ad580a19e6a1ca5ff29ef9074411ee9f9f1b0a6365dfebd

SHA512
292aad2762ae4dc519c69411aa114a29894f60ffac103813db4946f2fac4f5a166f66523c421529d6847c0882d8ab467392ee8da1e3a4fca0d6d4e6ebda5b737

Download Submit
C:\Users\Admin\AppData\Local\Sso8n7qgT\DUI70.dll

Filesize
1.2MB

MD5
311588e29d856f1995386eb54e6460ea

SHA1
ce4ef3abb54aaafeeaa9f21f39da1578da901555

SHA256
89e723cbcd985df46a7da056cbe94511c508963bbefb475ef56c230025ea63e3

SHA512
12756b1a11cfb3078927f409392e298926509fd8765a38e43f86abef86449f91a094bb4c414a1fde562108396656f643f8aee7ad44b1a353ee442871f4623660

Download Submit
C:\Users\Admin\AppData\Local\Sso8n7qgT\SystemSettingsAdminFlows.exe

Filesize
506KB

MD5
50adb2c7c145c729b9de8b7cf967dd24

SHA1
a31757f08da6f95156777c1132b6d5f1db3d8f30

SHA256
a7a2e7122d27308df37b7ab718ef3ac239e4216669f51331e34e205f59fb0aec

SHA512
715b4c93e79e896da1cf86cf4455a84cba1aeac34b6fd72d2afdf203a2034f6f8fac1d6501f0dd277a17bd1d7ab73ddd1887e01a99f2d26f39efeb94d0aac9b0

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

Filesize
1KB

MD5
8dfb2c3334a3a0c1f507695dd5885498

SHA1
d90d2a8fd04e5cd0ad9096b0859fbc02dc99dc3d

SHA256
5c43863cef09f9e651743ed346db5036614177da32d2e254c41f3b952da18940

SHA512
dc6d73a95f2b2e3d17720b6623e75a85862b7c7e4eaa86e5ea4d8b682dc4bd94a8b07ff012ea227f87ea5f6f03c5f6423422551f96707ec6a363f4477da41fb9

Download Submit
memory/3436-7-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-33-0x00007FF8E3910000-0x00007FF8E3920000-memory.dmp

Filesize
64KB

Download
memory/3436-11-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-10-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-9-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-8-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-14-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-4-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

Filesize
4KB

Download
memory/3436-34-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-6-0x00007FF8E308A000-0x00007FF8E308B000-memory.dmp

Filesize
4KB

Download
memory/3436-32-0x0000000000780000-0x0000000000787000-memory.dmp

Filesize
28KB

Download
memory/3436-12-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-13-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/3436-23-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/4524-83-0x0000000140000000-0x00000001400FD000-memory.dmp

Filesize
1012KB

Download
memory/4616-37-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/4616-0-0x000001ABF6A80000-0x000001ABF6A87000-memory.dmp

Filesize
28KB

Download
memory/4616-1-0x0000000140000000-0x00000001400FC000-memory.dmp

Filesize
1008KB

Download
memory/5724-64-0x000001757C100000-0x000001757C107000-memory.dmp

Filesize
28KB

Download
memory/5724-61-0x0000000140000000-0x00000001400FD000-memory.dmp

Filesize
1012KB

Download
memory/5724-67-0x0000000140000000-0x00000001400FD000-memory.dmp

Filesize
1012KB

Download
memory/5768-50-0x0000000140000000-0x0000000140142000-memory.dmp

Filesize
1.3MB

Download
memory/5768-47-0x000002D4E9B00000-0x000002D4E9B07000-memory.dmp

Filesize
28KB

Download
memory/5768-44-0x0000000140000000-0x0000000140142000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads