Analysis
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max time kernel
93s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-04-2024 11:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe
Resource
win7-20240221-en
General
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Target
2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe
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Size
241KB
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MD5
c39485a1c3300463348eaa752784a506
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SHA1
e6c2ac85acc16434f818c065de1e5811098bc3b8
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SHA256
21f3bd2c7515bfeef02b0295f97d0c68bf296c6004b88bba94d2b57ced08e95f
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SHA512
10df37b93ba7270db64c1bf69ef70a9428d6e38703a81e5e667da610dc6c2ac896667ef4adad3aa2a9c7dc511b7b0297f61feaef4ef942d9a1d344410bb16983
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SSDEEP
3072:dRu4T8pmpXyF/hpBE5fgq09o6GwuDpW2mmtRVQkIr05+u4dC5ehyreqv/kmDfE5T:dRu4TXyF/wpFJIy4hhyr2OMBEclDwg
Malware Config
Signatures
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UPX dump on OEP (original entry point) 2 IoCs
resource yara_rule behavioral2/memory/648-7-0x0000000000400000-0x000000000042A000-memory.dmp UPX behavioral2/memory/648-10-0x0000000002180000-0x00000000021AA000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 648 2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnitmgr.exe -
Loads dropped DLL 1 IoCs
pid Process 648 2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnitmgr.exe -
resource yara_rule behavioral2/memory/648-7-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3632 648 WerFault.exe 84 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1784 wrote to memory of 648 1784 2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe 84 PID 1784 wrote to memory of 648 1784 2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe 84 PID 1784 wrote to memory of 648 1784 2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnit.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Users\Admin\AppData\Local\Temp\2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnitmgr.exeC:\Users\Admin\AppData\Local\Temp\2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnitmgr.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:648 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 648 -s 5403⤵
- Program crash
PID:3632
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 648 -ip 6481⤵PID:3724
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\2024-04-11_c39485a1c3300463348eaa752784a506_karagany_mafia_ramnitmgr.exe
Filesize106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219