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Analysis
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max time kernel
43s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06/11/2022, 20:56
Static task
static1
Behavioral task
behavioral1
Sample
8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll
Resource
win7-20220812-en
General
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Target
8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll
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Size
556KB
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MD5
05aac05edca095ed3b096e8ccaa22d0a
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SHA1
64e69952c8dadefbb77e1373c64f02467a18d527
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SHA256
8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc
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SHA512
ffcd62065a33b6f6d7e8156c023c81dd23480aec3509f787aa69b8d5a5314dc3add7257e886e0148e5f40518b779fcf37c78b87041aed0ff46ebd6e0fc9c0798
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SSDEEP
12288:5hpUrEIZJqr1AkBWwNa5R0EYl795/amaX3QXaPKUoe4VOxj96lN:5/jG01NHXaP94T
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 908 rundll32mgr.exe -
resource yara_rule behavioral1/memory/908-64-0x0000000000400000-0x0000000000444000-memory.dmp upx -
Loads dropped DLL 4 IoCs
pid Process 536 rundll32.exe 536 rundll32.exe 908 rundll32mgr.exe 908 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1000 536 WerFault.exe 27 -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 768 wrote to memory of 536 768 rundll32.exe 27 PID 536 wrote to memory of 908 536 rundll32.exe 28 PID 536 wrote to memory of 908 536 rundll32.exe 28 PID 536 wrote to memory of 908 536 rundll32.exe 28 PID 536 wrote to memory of 908 536 rundll32.exe 28 PID 536 wrote to memory of 1000 536 rundll32.exe 29 PID 536 wrote to memory of 1000 536 rundll32.exe 29 PID 536 wrote to memory of 1000 536 rundll32.exe 29 PID 536 wrote to memory of 1000 536 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8ec8cbda4b1c30cf4a7328724f14c4b4999650dd2458572724f35f0574a773fc.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 2363⤵
- Program crash
PID:1000
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
94KB
MD58b5f2036288762602f2916929b1ab9d8
SHA1351a0157960c3b009a9814a6e8b7f788ba798988
SHA25655751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951
SHA51241a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
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Filesize
1.1MB
MD59b98d47916ead4f69ef51b56b0c2323c
SHA1290a80b4ded0efc0fd00816f373fcea81a521330
SHA25696e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA51268b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94
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Filesize
94KB
MD58b5f2036288762602f2916929b1ab9d8
SHA1351a0157960c3b009a9814a6e8b7f788ba798988
SHA25655751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951
SHA51241a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1
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Filesize
94KB
MD58b5f2036288762602f2916929b1ab9d8
SHA1351a0157960c3b009a9814a6e8b7f788ba798988
SHA25655751df54d8d54e5bb8edab83bd57fd599b2e9aa313233d6aa084cde167e6951
SHA51241a45bd5ff492cf2a01ad156f763854b1d5371d1a41cee4cad977c4ff25a561c1b3fbb067463e2b7278ac6878af139ff7fd695bed1f5883516a70031e9758bc1