Analysis
- max time kernel
121s - max time network
140s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
27/10/2021, 08:27
General
- Target i21mm6.rar.dll
- Size 747KB
- Sample211027-kcemwsabhj
- SHA256 4cfb2124f898c062152ffff325edf22f281e9903f3627c5b8156f2542d19b3dc
Score
10/10
Malware Config
Extracted
Family
-
dridex
Botnet
-
10444
C2
-
192.46.210.220:443
-
143.244.140.214:808
-
45.77.0.96:6891
-
185.56.219.47:8116
rc4.plain
rc4.plain
Signatures
- Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
- Blocklisted process makes network request 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\i21mm6.rar.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\i21mm6.rar.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/500-116-0x0000000073B90000-0x0000000073C5C000-memory.dmp
memory/500-117-0x0000000073B90000-0x0000000073BCD000-memory.dmp
memory/500-118-0x0000000073B90000-0x0000000073C5C000-memory.dmp
memory/500-120-0x0000000000980000-0x0000000000981000-memory.dmp
memory/500-121-0x0000000000980000-0x0000000000981000-memory.dmp
memory/500-122-0x0000000000980000-0x0000000000981000-memory.dmp
memory/500-577-0x0000000000970000-0x0000000000971000-memory.dmp