dridex | d590a58d203fa7da5c807e2bdd946aaf55f04d2413ad267dc07bbc97de70476b

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 07:07

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General

Target

bac626c330c4f54cf739b1840fe180b4_JaffaCakes118.dll
Size

1.2MB
MD5

bac626c330c4f54cf739b1840fe180b4
SHA1

ac00babc73192095dd0a99e15052dbc94b0076f1
SHA256

d590a58d203fa7da5c807e2bdd946aaf55f04d2413ad267dc07bbc97de70476b
SHA512

7452f661484866a623ab1c1b44c5cec0074f9f642ad6d15c0f3d7f1297dd3c224fa67f59d9e626627374ad4a57fdc1bb8be2a5e89a8f5a91cb3ef5d8732de942
SSDEEP

24576:uuYfg4LhHr4NFXKJO1aUiDBvZ2+ITHmpclO9N:O9cKrUqZWLAcU

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
behavioral1/memory/1064-5-0x00000000020B0000-0x00000000020B1000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

Processes:

BdeUISrv.exemspaint.exerdpshell.exe

pid	Process
2948	BdeUISrv.exe
2224	mspaint.exe
2812	rdpshell.exe

Loads dropped DLL 7 IoCs

Processes:

BdeUISrv.exemspaint.exerdpshell.exe

pid	Process
1064
2948	BdeUISrv.exe
1064
2224	mspaint.exe
1064
2812	rdpshell.exe
1064

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-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\Qdgopofbxbljb = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Excel\\NzIY\\mspaint.exe"

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

BdeUISrv.exemspaint.exerdpshell.exerundll32.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	BdeUISrv.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	rdpshell.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
2380	rundll32.exe
2380	rundll32.exe
2380	rundll32.exe
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064
1064

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

description	pid	procid_target
PID 1064 wrote to memory of 2628	1064	31
PID 1064 wrote to memory of 2628	1064	31
PID 1064 wrote to memory of 2628	1064	31
PID 1064 wrote to memory of 2948	1064	32
PID 1064 wrote to memory of 2948	1064	32
PID 1064 wrote to memory of 2948	1064	32
PID 1064 wrote to memory of 1880	1064	33
PID 1064 wrote to memory of 1880	1064	33
PID 1064 wrote to memory of 1880	1064	33
PID 1064 wrote to memory of 2224	1064	34
PID 1064 wrote to memory of 2224	1064	34
PID 1064 wrote to memory of 2224	1064	34
PID 1064 wrote to memory of 1912	1064	35
PID 1064 wrote to memory of 1912	1064	35
PID 1064 wrote to memory of 1912	1064	35
PID 1064 wrote to memory of 2812	1064	36
PID 1064 wrote to memory of 2812	1064	36
PID 1064 wrote to memory of 2812	1064	36

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\bac626c330c4f54cf739b1840fe180b4_JaffaCakes118.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2380

C:\Windows\system32\BdeUISrv.exe
C:\Windows\system32\BdeUISrv.exe
1⤵
PID:2628

C:\Users\Admin\AppData\Local\StKiP\BdeUISrv.exe
C:\Users\Admin\AppData\Local\StKiP\BdeUISrv.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2948

C:\Windows\system32\mspaint.exe
C:\Windows\system32\mspaint.exe
1⤵
PID:1880

C:\Users\Admin\AppData\Local\kgtSgP\mspaint.exe
C:\Users\Admin\AppData\Local\kgtSgP\mspaint.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2224

C:\Windows\system32\rdpshell.exe
C:\Windows\system32\rdpshell.exe
1⤵
PID:1912

C:\Users\Admin\AppData\Local\u26mv\rdpshell.exe
C:\Users\Admin\AppData\Local\u26mv\rdpshell.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2812

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

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Downloads

C:\Users\Admin\AppData\Local\StKiP\WTSAPI32.dll

Filesize
1.2MB

MD5
7fdc85ab42f0c0ce03d0eb160d218fab

SHA1
9bb7491990d0cf2355aa9e73254978e70ae5acb2

SHA256
ab1633f88aaaeb58ca7846b1610cc83c5f77d5e5109baee1cd743ef600ec085a

SHA512
58aa58791696bc7236e50ae6d3254b9d1f161c35a3f0874cf2cb4d9a9181ab25658efb8ce9d601a036bf6844c4658e2ecc8c150548bf79d49093e799e4a74163

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

Filesize
1.2MB

MD5
dc77cbfc49a7e6a7c21db2e72c65ea2b

SHA1
2c40b1d6c56bb1513357647402ba6ce0abb847d0

SHA256
a8765e5082e0a8e67c95353d37721b2bda263b1d6bd91f02f1d755ab476ebf9c

SHA512
9eae4c5ec1123ced9bb4ef80a2db0f875b838969cbaf9041eb71f76e4159309a408e72edfbadc39b2a9af936f5170dbe10a75702ca2edbf4115beb5e7188e4b6

Download Submit
C:\Users\Admin\AppData\Local\u26mv\WINSTA.dll

Filesize
1.2MB

MD5
c24295d82ce5dbe44d92f01e59576e92

SHA1
5bf2e170d632569849fc5f60339026b76045aa6f

SHA256
2be4147f7c4e507b056b707bf25ef36ec4da43a7b4bd2818df6bddd2fe2940c0

SHA512
9407cc42aaacd623f199afb5fbf161965c4d069e73334c8284276173e2b4ff806a455c56bd0d6eba3503081a236d9c4a6e946744a8a5007c16f1bb7fdabac032

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

Filesize
732B

MD5
b525f006e506a8100703c5c6a59c62cf

SHA1
89c9f8959f3c87ad5bfd41d5f2db3c6042c4eed4

SHA256
96c1b871a93c1f4a7650dc35c78451cdbb0ded22654f6dbfb63acf69f33b656a

SHA512
6c4a18fc111fd7083659cb8374e72229b3d7522d7db9f71d7e2925a5645523f19bc3f9e5036b6fe0ea7717b93fd4d3efb5f1664532998082fa8b6d784d54376f

Download Submit
\Users\Admin\AppData\Local\StKiP\BdeUISrv.exe

Filesize
47KB

MD5
1da6b19be5d4949c868a264bc5e74206

SHA1
d5ee86ba03a03ef8c93d93accafe40461084c839

SHA256
00330a0e0eb1dbb6ee84997963f8e15c7c15c1df787f1c7f109609d7b31bd35c

SHA512
9cee858c55eb0852e5bad53a675a094ae591b46b07afe9fb4224cac32e0be577fe36c1ed3e9f6bda4d4eb0c924a773d00e3181cd97f07e24c6c68c70f2b002c6

Download Submit
\Users\Admin\AppData\Local\kgtSgP\mspaint.exe

Filesize
6.4MB

MD5
458f4590f80563eb2a0a72709bfc2bd9

SHA1
3f97dc3bd1467c710c6a8d26b97bb6cf47deb4c6

SHA256
ff923c051ae380bf30d749ebe9cf310ccab6572d84eb81b76fb1012bcbdf557f

SHA512
e34500658dbe105a704fff6988b75d13aa9931adfd585b8ce1f023c61abd573d58067ee1f43e80076729ba99c9a00c17eb8cfcfac9c3d271d76bd251ccab1681

Download Submit
\Users\Admin\AppData\Local\u26mv\rdpshell.exe

Filesize
292KB

MD5
a62dfcea3a58ba8fcf32f831f018fe3f

SHA1
75f7690b19866f2c2b3dd3bfdff8a1c6fa8e958b

SHA256
f8346a44f12e5b1ca6beaae5fbdf5f7f494ba204379c21d1875b03ba6da6152e

SHA512
9a3df5be95017c23ab144302d2275654e86193e2cd94957d5f72bda3cb171ec2a6da14e6631a7fd4fd053b4529f4083aa287ada57484ad0ee01a8e5b2b54c603

Download Submit
memory/1064-29-0x0000000077A81000-0x0000000077A82000-memory.dmp

Filesize
4KB

Download
memory/1064-47-0x0000000077876000-0x0000000077877000-memory.dmp

Filesize
4KB

Download
memory/1064-11-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-10-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-17-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-26-0x0000000002090000-0x0000000002097000-memory.dmp

Filesize
28KB

Download
memory/1064-16-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-15-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-14-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-25-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-30-0x0000000077C10000-0x0000000077C12000-memory.dmp

Filesize
8KB

Download
memory/1064-4-0x0000000077876000-0x0000000077877000-memory.dmp

Filesize
4KB

Download
memory/1064-38-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-37-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-5-0x00000000020B0000-0x00000000020B1000-memory.dmp

Filesize
4KB

Download
memory/1064-12-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-13-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-9-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-7-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/1064-8-0x0000000140000000-0x0000000140131000-memory.dmp

Filesize
1.2MB

Download
memory/2224-73-0x00000000002B0000-0x00000000002B7000-memory.dmp

Filesize
28KB

Download
memory/2224-74-0x000007FEF6EC0000-0x000007FEF6FF2000-memory.dmp

Filesize
1.2MB

Download
memory/2224-79-0x000007FEF6EC0000-0x000007FEF6FF2000-memory.dmp

Filesize
1.2MB

Download
memory/2380-46-0x000007FEF70D0000-0x000007FEF7201000-memory.dmp

Filesize
1.2MB

Download
memory/2380-0-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/2380-1-0x000007FEF70D0000-0x000007FEF7201000-memory.dmp

Filesize
1.2MB

Download
memory/2812-91-0x000007FEF70D0000-0x000007FEF7203000-memory.dmp

Filesize
1.2MB

Download
memory/2812-96-0x000007FEF70D0000-0x000007FEF7203000-memory.dmp

Filesize
1.2MB

Download
memory/2948-61-0x000007FEF7940000-0x000007FEF7A72000-memory.dmp

Filesize
1.2MB

Download
memory/2948-56-0x000007FEF7940000-0x000007FEF7A72000-memory.dmp

Filesize
1.2MB

Download
memory/2948-55-0x00000000001A0000-0x00000000001A7000-memory.dmp

Filesize
28KB

Download