6d07f838f68e3fd0958319878ca69a0648acd010b011e9672e92e75a44d2e9b8

General

Target

457a65722799fac6bba11e515c45ed05.exe
Size

123KB
MD5

457a65722799fac6bba11e515c45ed05
SHA1

c3f356bd9a0840b430357959a204412fe0ec6117
SHA256

6d07f838f68e3fd0958319878ca69a0648acd010b011e9672e92e75a44d2e9b8
SHA512

7c5ab9d4297aa4627620fc10450b55edde526fb2e5e03be6247cf33782b1a3b3137ad0eca211c762acbd639b52b88caf4c9d59ff594a2ba8aa28ce5544454463
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLw:OVYrJrOSsRwcpy

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-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\Trust Database\0\goicfboogidikkejccmclpieicihhlpo jimddp = "electronic-group"	iaccess32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 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	regedit.exe

Executes dropped EXE 1 IoCs

pid	Process
1816	iaccess32.exe

Loads dropped DLL 3 IoCs

pid	Process
2780	regsvr32.exe
1816	iaccess32.exe
1816	iaccess32.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2664-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2664-6-0x0000000001D10000-0x0000000001D3E000-memory.dmp	upx
behavioral1/files/0x000c00000001225c-5.dat	upx
behavioral1/memory/2664-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-77-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-78-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-79-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-81-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-82-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-83-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-85-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-86-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-87-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-88-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-89-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-90-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-91-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-92-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1816-93-0x0000000000400000-0x000000000042E000-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\DesktopIcons\NOCREDITCARD.lnk	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\20100714090735\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e.ico	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100714090735\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100714090735\dialerexe.ini	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\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
File created	C:\Windows\iaccess32.exe	457a65722799fac6bba11e515c45ed05.exe
File created	C:\Windows\tmlpcert2007	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 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Main	iaccess32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iaccess32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\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
2000	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2664	457a65722799fac6bba11e515c45ed05.exe
1816	iaccess32.exe
1816	iaccess32.exe
1816	iaccess32.exe
1816	iaccess32.exe
1816	iaccess32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 1816	2664	457a65722799fac6bba11e515c45ed05.exe	19
PID 2664 wrote to memory of 1816	2664	457a65722799fac6bba11e515c45ed05.exe	19
PID 2664 wrote to memory of 1816	2664	457a65722799fac6bba11e515c45ed05.exe	19
PID 2664 wrote to memory of 1816	2664	457a65722799fac6bba11e515c45ed05.exe	19
PID 1816 wrote to memory of 2000	1816	iaccess32.exe	17
PID 1816 wrote to memory of 2000	1816	iaccess32.exe	17
PID 1816 wrote to memory of 2000	1816	iaccess32.exe	17
PID 1816 wrote to memory of 2000	1816	iaccess32.exe	17
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16
PID 1816 wrote to memory of 2780	1816	iaccess32.exe	16

C:\Users\Admin\AppData\Local\Temp\457a65722799fac6bba11e515c45ed05.exe
"C:\Users\Admin\AppData\Local\Temp\457a65722799fac6bba11e515c45ed05.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Windows\iaccess32.exe
  C:\Windows\iaccess32.exe
  2⤵
  - 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:1816

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
1⤵
- Loads dropped DLL
- Modifies registry class
PID:2780

C:\Windows\SysWOW64\regedit.exe
"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
1⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:2000

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

C:\Windows\iaccess32.exe

Filesize
92KB

MD5
82d83d4e6dfcf2608cad8e98f94f8c52

SHA1
a7eb8b5a73502c3caa521206699dd2ad57599d45

SHA256
80211392d91228323fb4cdfe384708629ac2a1c3e80760cb99b4115a9aa61fc5

SHA512
1c83e4dd92c0297e9372d7d750a64c3a486ecb0297ae0318c6cdb4da71db953e4180da3837768314c7c36cf2407c031f953ce09a62bff2ca0985fec9d8e88aa4

Download Submit
memory/1816-86-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-82-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-93-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-56-0x0000000001EC0000-0x0000000001ED0000-memory.dmp

Filesize
64KB

Download
memory/1816-92-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-77-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-78-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-79-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-83-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-91-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-81-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-90-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-85-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-89-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-87-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1816-88-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2664-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2664-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2664-6-0x0000000001D10000-0x0000000001D3E000-memory.dmp

Filesize
184KB

Download
memory/2780-80-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/2780-35-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download

Analysis

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