Analysis
-
max time kernel
149s -
max time network
237s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
31-07-2022 05:10
Static task
static1
Behavioral task
behavioral1
Sample
epix12dx.dll
Resource
win7-20220718-en
windows7-x64
4 signatures
150 seconds
General
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Target
epix12dx.dll
-
Size
476KB
-
MD5
a3a64611273a16751d073c147b783c06
-
SHA1
0757337ab4720ba52b02fca61fa5b294d6deba35
-
SHA256
577f04df45d0e29c54c2ed22493da51147f7b07654b1551116e524dc576f4369
-
SHA512
59f7263454511ee475742a6fa5046e1f7ba6fff82963817bfae8876cfef3f02dfe26463dfdeafcaf480d82bdfc3f5ead7cac9cf39b1dbc37932e93ee3e1f218a
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
23.246.204.126:443
151.106.39.36:8116
103.124.144.123:6891
172.105.78.60:4664
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral2/memory/636-132-0x00000000750B0000-0x0000000075129000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4076 636 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3820 wrote to memory of 636 3820 rundll32.exe rundll32.exe PID 3820 wrote to memory of 636 3820 rundll32.exe rundll32.exe PID 3820 wrote to memory of 636 3820 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\epix12dx.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\epix12dx.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 7083⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 636 -ip 6361⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/636-130-0x0000000000000000-mapping.dmp
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memory/636-131-0x0000000001050000-0x0000000001056000-memory.dmpFilesize
24KB
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memory/636-132-0x00000000750B0000-0x0000000075129000-memory.dmpFilesize
484KB
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memory/636-134-0x0000000001050000-0x0000000001056000-memory.dmpFilesize
24KB