21ed86f252b54aca8ae7b1b59d4f93020c6b745bad3882c6b2f483cbf6e6a53b

General

Target

12c92c180dc1eb2fc1ac9e46a20aa7c5.exe
Size

123KB
MD5

12c92c180dc1eb2fc1ac9e46a20aa7c5
SHA1

944f2e964803bd83784ae8563a9012af876b9a16
SHA256

21ed86f252b54aca8ae7b1b59d4f93020c6b745bad3882c6b2f483cbf6e6a53b
SHA512

259b9cd84a9ca5c82eec811018acaf0a8cd32a2e7e11107b1482ef2ef868a035646573ee77f8422daf6026a3b55c5b23a3e0e7ae403582acf2d4f88febf9b98b
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLHzY:OVYrJrOSsRwcpNk

Score

8^/10

upx

Malware Config

Signatures

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.

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\Trust Database\0\goicfboogidikkejccmclpieicihhlpo jimddp = "electronic-group"	iaccess32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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	regedit.exe

Executes dropped EXE 1 IoCs

pid	Process
2428	iaccess32.exe

Loads dropped DLL 3 IoCs

pid	Process
2128	regsvr32.exe
2428	iaccess32.exe
2428	iaccess32.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2428-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2872-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2872-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2428-71-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2428-87-0x0000000000400000-0x000000000042E000-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\20110117150114\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\medias\p2e.ico	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20110117150114\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20110117150114\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\iaccess32.exe	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe
File created	C:\Windows\tmlpcert2007	iaccess32.exe
File created	C:\Windows\dialexe.zl	iaccess32.exe
File created	C:\Windows\dialexe.epk	iaccess32.exe
File created	C:\Windows\dialerexe.ini	iaccess32.exe
File created	C:\Windows\egdhtm_pack.epk	iaccess32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Main	iaccess32.exe

Modifies registry class 4 IoCs

description	ioc	Process
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
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

Runs regedit.exe 1 IoCs

pid	Process
2808	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2872	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe
2428	iaccess32.exe
2428	iaccess32.exe
2428	iaccess32.exe
2428	iaccess32.exe
2428	iaccess32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2428	2872	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe	19
PID 2872 wrote to memory of 2428	2872	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe	19
PID 2872 wrote to memory of 2428	2872	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe	19
PID 2872 wrote to memory of 2428	2872	12c92c180dc1eb2fc1ac9e46a20aa7c5.exe	19
PID 2428 wrote to memory of 2808	2428	iaccess32.exe	16
PID 2428 wrote to memory of 2808	2428	iaccess32.exe	16
PID 2428 wrote to memory of 2808	2428	iaccess32.exe	16
PID 2428 wrote to memory of 2808	2428	iaccess32.exe	16
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17
PID 2428 wrote to memory of 2128	2428	iaccess32.exe	17

C:\Windows\SysWOW64\regedit.exe
"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
1⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:2808

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
1⤵
- Loads dropped DLL
- Modifies registry class
PID:2128

C:\Windows\iaccess32.exe
C:\Windows\iaccess32.exe
1⤵
- 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:2428

C:\Users\Admin\AppData\Local\Temp\12c92c180dc1eb2fc1ac9e46a20aa7c5.exe
"C:\Users\Admin\AppData\Local\Temp\12c92c180dc1eb2fc1ac9e46a20aa7c5.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2428-57-0x0000000003540000-0x0000000003550000-memory.dmp

Filesize
64KB

Download
memory/2428-45-0x0000000003540000-0x0000000003550000-memory.dmp

Filesize
64KB

Download
memory/2428-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2428-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2428-87-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-9-0x00000000002B0000-0x00000000002DE000-memory.dmp

Filesize
184KB

Download
memory/2872-8-0x00000000002B0000-0x00000000002DE000-memory.dmp

Filesize
184KB

Download
memory/2872-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2872-86-0x00000000002B0000-0x00000000002DE000-memory.dmp

Filesize
184KB

Download

Analysis

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