19b5fd9788f8183d3cce0c608c2eed0cbc411ade99b0ee69b747537a0f4cf736

General

Target

df78fe15b7f9c71f4c6c8a19adc40442.exe
Size

123KB
MD5

df78fe15b7f9c71f4c6c8a19adc40442
SHA1

d43932d148b28a3b3a8032949f7fc32f2b2eb15c
SHA256

19b5fd9788f8183d3cce0c608c2eed0cbc411ade99b0ee69b747537a0f4cf736
SHA512

a00c691efad4032e82616cd666f7da4cb81fd80730ce8c2e017f63778a845cbb9a7ca973d1accdd626127c908837d79a3aa530f6a6f8cf4768433f9a534bcbd9
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLPcAce:OVYrJrOSsRwcpqAce

Score

8^/10

upx

Malware Config

Signatures

Manipulates Digital Signatures 1 TTPs 1 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 (data)	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\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
behavioral2/files/0x000700000002324f-26.dat	acprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
760	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/116-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0008000000023239-3.dat	upx
behavioral2/memory/2808-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/116-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000700000002324f-26.dat	upx
behavioral2/memory/760-28-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/2808-56-0x0000000000400000-0x000000000042E000-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\20100702100750\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\medias\p2e.ico	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\20100702100750\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\dialerexe.ini	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100702100750\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\instant access.exe	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\20100702100750\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100702100750\medias\p2e_logo_2.gif	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\iaccess32.exe	df78fe15b7f9c71f4c6c8a19adc40442.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 data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\À	iaccess32.exe

Modifies registry class 4 IoCs

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}	regsvr32.exe

Runs regedit.exe 1 IoCs

pid	Process
2076	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
116	df78fe15b7f9c71f4c6c8a19adc40442.exe
2808	iaccess32.exe
2808	iaccess32.exe
2808	iaccess32.exe
2808	iaccess32.exe
2808	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2808	116	df78fe15b7f9c71f4c6c8a19adc40442.exe	86
PID 116 wrote to memory of 2808	116	df78fe15b7f9c71f4c6c8a19adc40442.exe	86
PID 116 wrote to memory of 2808	116	df78fe15b7f9c71f4c6c8a19adc40442.exe	86
PID 2808 wrote to memory of 2076	2808	iaccess32.exe	92
PID 2808 wrote to memory of 2076	2808	iaccess32.exe	92
PID 2808 wrote to memory of 2076	2808	iaccess32.exe	92
PID 2808 wrote to memory of 760	2808	iaccess32.exe	93
PID 2808 wrote to memory of 760	2808	iaccess32.exe	93
PID 2808 wrote to memory of 760	2808	iaccess32.exe	93

C:\Users\Admin\AppData\Local\Temp\df78fe15b7f9c71f4c6c8a19adc40442.exe
"C:\Users\Admin\AppData\Local\Temp\df78fe15b7f9c71f4c6c8a19adc40442.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\iaccess32.exe
  C:\Windows\iaccess32.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2808
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
    3⤵
    - Manipulates Digital Signatures
    - Runs regedit.exe
    PID:2076
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
    3⤵
    - Loads dropped DLL
    - Modifies registry class
    PID:760

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:2080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk

Filesize
2KB

MD5
aa510bd3ae3f89a84b6c1a486665f192

SHA1
1f91f01215b9724afb8738a5990485024f3022c5

SHA256
ffc98d887ced3c6eefeeb044089b4e2cd329fab5c9ba9f919bfa5c22704d3d6c

SHA512
8416def3f73d8b1c351b4e8b467bbbfc9816a7ec71ca966afe2c916d4bb8e20069526351c72a3a39e8746d878247f8ec3f20b9faa8339796bb83d665806d09dd

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20100702100750\dialerexe.ini

Filesize
587B

MD5
60d23f16769a82e87cda83aace637eb8

SHA1
759cf2ca20deaf3fe036123616c30d2168d921cf

SHA256
80095db279ee536fed8ea3f6d9028f9f80083ea7e3109ab6935798ce877fa7dd

SHA512
04237cfdb3b60c583ad051029989d3396518305985d697aa5049398d1deae06bb5e7e666fa6c4522a419c6a39d6e718661f80e6c25dec6155498b5f49a409f3a

Download Submit
C:\Windows\SysWOW64\egaccess4_1071.dll

Filesize
76KB

MD5
b83f652ffa76451ae438954f89c02f62

SHA1
b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

SHA256
f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

SHA512
965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

Download Submit
C:\Windows\iaccess32.exe

Filesize
123KB

MD5
dd428727e72b042c22331c642c303d80

SHA1
9f3916e4c7d3a2e653d1cadbe47acbefb4059ed5

SHA256
a4cdf6cada5d35f7db239634a7ea088e67e1083992fee5117db936a68765d885

SHA512
62c79c94f8a54998e9ea66767abda7282aee687a8b406198f165d58dcd690cbef92e3b439293f1463b46341a6cf51772a382230a00ecea2ae96531a3e9664385

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/116-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/116-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/760-28-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/2808-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2808-56-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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