Analysis
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max time kernel
26s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-12-2024 20:05
Static task
static1
Behavioral task
behavioral1
Sample
7a1231044afd18c275a53097ee602857e522e47d9002e766b5dd53599fa3b3e8.dll
Resource
win7-20240903-en
General
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Target
7a1231044afd18c275a53097ee602857e522e47d9002e766b5dd53599fa3b3e8.dll
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Size
248KB
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MD5
7d4b0c996fe0a8f1bb1df08f6dbf6a40
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SHA1
f72736bdfdb999d2e1a4f30f7c61558415582e15
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SHA256
7a1231044afd18c275a53097ee602857e522e47d9002e766b5dd53599fa3b3e8
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SHA512
b2d64a5afd9b6b5c5e514463e0800d20984974738237be685a464a795c5c92bd6f212ba1c175b3f175d86b381b554fb1110e80271b9ac0e319eb1ef747bb712d
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SSDEEP
3072:taEZWj7MjLm4xNq5qg606u9YKuGmUKGOtdnVF8SYbQRtKX3lywX98qsQI+AX1:f2tvKXLViSYeKXVyl8I+AX1
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 2132 rundll32mgr.exe -
Loads dropped DLL 4 IoCs
pid Process 2740 rundll32.exe 2740 rundll32.exe 2132 rundll32mgr.exe 2132 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral1/memory/2132-10-0x0000000000400000-0x000000000042A000-memory.dmp upx behavioral1/memory/2132-17-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3012 2132 WerFault.exe 31 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32mgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2848 wrote to memory of 2740 2848 rundll32.exe 30 PID 2740 wrote to memory of 2132 2740 rundll32.exe 31 PID 2740 wrote to memory of 2132 2740 rundll32.exe 31 PID 2740 wrote to memory of 2132 2740 rundll32.exe 31 PID 2740 wrote to memory of 2132 2740 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7a1231044afd18c275a53097ee602857e522e47d9002e766b5dd53599fa3b3e8.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7a1231044afd18c275a53097ee602857e522e47d9002e766b5dd53599fa3b3e8.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2132 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 1804⤵
- Program crash
PID:3012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
106KB
MD57657fcb7d772448a6d8504e4b20168b8
SHA184c7201f7e59cb416280fd69a2e7f2e349ec8242
SHA25654bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71
SHA512786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
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Filesize
1.1MB
MD59b98d47916ead4f69ef51b56b0c2323c
SHA1290a80b4ded0efc0fd00816f373fcea81a521330
SHA25696e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA51268b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94