Analysis
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max time kernel
142s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
26/03/2024, 14:33
Behavioral task
behavioral1
Sample
df65b9b8d9edfa61ca70e67b44ae9a0a.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
df65b9b8d9edfa61ca70e67b44ae9a0a.exe
Resource
win10v2004-20240226-en
General
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Target
df65b9b8d9edfa61ca70e67b44ae9a0a.exe
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Size
123KB
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MD5
df65b9b8d9edfa61ca70e67b44ae9a0a
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SHA1
6c546efaefd5d7127bd3f3c4f9668cf7613705f8
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SHA256
8f6fd90359eee516228f1527b317fe86b9b9f37e0fcfdb6092fad4a6333bc4cb
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SHA512
4160a87960a06b90584bacd7fd4c2adb2c24e79084654aada81d15798b476071796f6dd9409fec87be5f6fd68e7422c7b414ff82c011ebb4adb195606306e812
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SSDEEP
3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLOoo:OVYrJrOSsRwcp2
Malware Config
Signatures
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Manipulates Digital Signatures 1 TTPs 2 IoCs
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\Trust Database\0\goicfboogidikkejccmclpieicihhlpo jimddp = "electronic-group" iaccess32.exe Set value (data) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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 regedit.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0006000000015c69-30.dat acprotect -
Executes dropped EXE 1 IoCs
pid Process 2052 iaccess32.exe -
Loads dropped DLL 3 IoCs
pid Process 2900 regsvr32.exe 2052 iaccess32.exe 2052 iaccess32.exe -
resource yara_rule behavioral1/memory/1252-0-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/files/0x000b00000001224c-8.dat upx behavioral1/memory/2052-9-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/1252-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/1252-3-0x00000000005C0000-0x00000000005EE000-memory.dmp upx behavioral1/files/0x0006000000015c69-30.dat upx behavioral1/memory/2052-80-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-81-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-82-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-84-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-85-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-86-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-88-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-89-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-90-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-91-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-92-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-93-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-94-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-95-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2052-96-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\egaccess4_1071.dll iaccess32.exe -
Drops file in Program Files directory 13 IoCs
description ioc Process File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\Common\module.php iaccess32.exe File created C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e_3_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e.ico iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Multi\20100628040651\dialerexe.ini iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e_logo_2.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\dialerexe.ini iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\instant access.exe iaccess32.exe File opened for modification C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e_1_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e_2_3.gif iaccess32.exe File created C:\Program Files (x86)\Instant Access\Multi\20100628040651\medias\p2e_go_3.gif iaccess32.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File created C:\Windows\dialerexe.ini iaccess32.exe File created C:\Windows\egdhtm_pack.epk iaccess32.exe File created C:\Windows\iaccess32.exe df65b9b8d9edfa61ca70e67b44ae9a0a.exe File created C:\Windows\tmlpcert2007 iaccess32.exe File created C:\Windows\dialexe.zl iaccess32.exe File created C:\Windows\dialexe.epk iaccess32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Internet Explorer\Main iaccess32.exe Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iaccess32.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iaccess32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ = "C:\\Windows\\SysWow64\\egaccess4_1071.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Runs regedit.exe 1 IoCs
pid Process 2152 regedit.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1252 df65b9b8d9edfa61ca70e67b44ae9a0a.exe 2052 iaccess32.exe 2052 iaccess32.exe 2052 iaccess32.exe 2052 iaccess32.exe 2052 iaccess32.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1252 wrote to memory of 2052 1252 df65b9b8d9edfa61ca70e67b44ae9a0a.exe 28 PID 1252 wrote to memory of 2052 1252 df65b9b8d9edfa61ca70e67b44ae9a0a.exe 28 PID 1252 wrote to memory of 2052 1252 df65b9b8d9edfa61ca70e67b44ae9a0a.exe 28 PID 1252 wrote to memory of 2052 1252 df65b9b8d9edfa61ca70e67b44ae9a0a.exe 28 PID 2052 wrote to memory of 2152 2052 iaccess32.exe 29 PID 2052 wrote to memory of 2152 2052 iaccess32.exe 29 PID 2052 wrote to memory of 2152 2052 iaccess32.exe 29 PID 2052 wrote to memory of 2152 2052 iaccess32.exe 29 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30 PID 2052 wrote to memory of 2900 2052 iaccess32.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\df65b9b8d9edfa61ca70e67b44ae9a0a.exe"C:\Users\Admin\AppData\Local\Temp\df65b9b8d9edfa61ca70e67b44ae9a0a.exe"1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252 -
C:\Windows\iaccess32.exeC:\Windows\iaccess32.exe2⤵
- Manipulates Digital Signatures
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Windows\SysWOW64\regedit.exe"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert20073⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:2152
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C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"3⤵
- Loads dropped DLL
- Modifies registry class
PID:2900
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
587B
MD587755ab24d47cf667839055c91ae65dc
SHA1784fc088d59df8801a709fd6fc5eff3cd135b2a9
SHA256261a449f7f40975bf6ce37d4bec7f5a38268287103a7e4845cd2b6b58e7d1520
SHA512d609d78c6fdf26510439a43af91d3852aea45b7ff04e15fae92d2704690f81411c30bdd79285f18eb3ff3c425aa05bb6c75820dd52277a351aa74d4191ca3b20
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Filesize
2KB
MD571069300f985e24af408a1356eca7bdc
SHA118bd49cbc8396b5dcaddd2be8cf5fbe8fef75e67
SHA256ff1570b40d6a4c735e0ef7be064e7124828d9a3da37c75f85e06286aece235bc
SHA512ef1718716bf0a3d0a4a8ef483206dc5d8070e3579c99140a41871b91cd4686ccb85d44106a095741f9c8d448e6e5f03a19903315e234f98b7ca9ffaad39c1a63
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Filesize
76KB
MD5b83f652ffa76451ae438954f89c02f62
SHA1b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd
SHA256f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f
SHA512965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83
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Filesize
123KB
MD5270e910f960cbcc3b4fd26fbfe8832b2
SHA10c2dc6c3900b99a608d2c994ed1473f58221ba62
SHA256517d1f9c53991a965c8d3b5dc569a2eb0b854c1738a35d851334ca38af53b11e
SHA512e529ffc733b19db9a935da09f05554e7ebb6dafcd3f0194416d4703498f56d0d1a42001723cc1d01a141f38133a7c4f26eb81a8e8c237ccf865a701156490a13
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Filesize
6KB
MD5b103757bc3c714123b5efa26ff96a915
SHA1991d6694c71736b59b9486339be44ae5e2b66fef
SHA256eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48
SHA512d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1