Analysis
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max time kernel
44s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
11/10/2022, 12:23
Static task
static1
Behavioral task
behavioral1
Sample
16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b.dll
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b.dll
Resource
win10v2004-20220901-en
General
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Target
16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b.dll
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Size
135KB
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MD5
21e724350d0d43851cd5c880e1d3df20
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SHA1
0aaffa5a214933971f9ca46a4d621fd6ae6dcb6f
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SHA256
16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b
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SHA512
1584e3d80ee2055218a10837af752c652f56a6a63398b13c5238a0a4c88b881c4644bfed7b54b7c00e49c18262e37c0e2d58c4f73e65184eb182d04f15ab65f1
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SSDEEP
3072:mcVJPJGphiNDKm2qqIkQYAkclKg8Tlf+zsdQ1bMur+LNp:mcVJPJNYQYncl38Td+4dQ15rG
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 900 regsvr32mgr.exe -
resource yara_rule behavioral1/memory/900-64-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Loads dropped DLL 4 IoCs
pid Process 944 regsvr32.exe 944 regsvr32.exe 900 regsvr32mgr.exe 900 regsvr32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32mgr.exe regsvr32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 544 900 WerFault.exe 28 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 2032 wrote to memory of 944 2032 regsvr32.exe 27 PID 944 wrote to memory of 900 944 regsvr32.exe 28 PID 944 wrote to memory of 900 944 regsvr32.exe 28 PID 944 wrote to memory of 900 944 regsvr32.exe 28 PID 944 wrote to memory of 900 944 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\16f5f535c4d2d36a08a547250ca14b8af09017e8e6af6aa2ce609948ed2db70b.dll2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Windows\SysWOW64\regsvr32mgr.exeC:\Windows\SysWOW64\regsvr32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:900 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 1804⤵
- Program crash
PID:544
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f
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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
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f
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Filesize
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f