2c748eef1b734ec9de399eac6e0a375180bdca06981eaa42f465d3cdbb3c0215

General

Target

440d10b21c273ebe7325f2998204d704.exe
Size

123KB
MD5

440d10b21c273ebe7325f2998204d704
SHA1

a6f9fb9e125d78c9165b7bbce2683d865432b517
SHA256

2c748eef1b734ec9de399eac6e0a375180bdca06981eaa42f465d3cdbb3c0215
SHA512

de3fd1ada1cfc04eda8dd6514c25d181fe58236b864559189e3ee2ac720e033184c79478236e0d62e98cfc98e6956f2c2f85563f462f5e3dbda0afbdba68d707
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLtrem:OVYrJrOSsRwcpTl

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-1-5-21-1497073144-2389943819-3385106915-1000\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/0x0006000000023201-26.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
1280	regsvr32.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1308-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1924-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1308-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000300000001e982-3.dat	upx
behavioral2/files/0x0006000000023201-26.dat	upx
behavioral2/memory/1924-58-0x0000000000400000-0x000000000042E000-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\20100712070749\dialerexe.ini	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\20100712070749\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\medias\p2e_3_3.gif	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\20100712070749\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\medias\p2e.ico	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712070749\medias\p2e_logo_2.gif	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100712070749\dialerexe.ini	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	440d10b21c273ebe7325f2998204d704.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).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\IESettingSync	iaccess32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	iaccess32.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iaccess32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iaccess32.exe

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
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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{413E282B-C32A-4717-A0F3-4F2E6FE25F83}\InprocServer32\ = "C:\\Windows\\SysWow64\\egaccess4_1071.dll"	regsvr32.exe

Runs regedit.exe 1 IoCs

pid	Process
2096	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1308	440d10b21c273ebe7325f2998204d704.exe
1924	iaccess32.exe
1924	iaccess32.exe
1924	iaccess32.exe
1924	iaccess32.exe
1924	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 1924	1308	440d10b21c273ebe7325f2998204d704.exe	18
PID 1308 wrote to memory of 1924	1308	440d10b21c273ebe7325f2998204d704.exe	18
PID 1308 wrote to memory of 1924	1308	440d10b21c273ebe7325f2998204d704.exe	18
PID 1924 wrote to memory of 2096	1924	iaccess32.exe	21
PID 1924 wrote to memory of 2096	1924	iaccess32.exe	21
PID 1924 wrote to memory of 2096	1924	iaccess32.exe	21
PID 1924 wrote to memory of 1280	1924	iaccess32.exe	24
PID 1924 wrote to memory of 1280	1924	iaccess32.exe	24
PID 1924 wrote to memory of 1280	1924	iaccess32.exe	24

C:\Users\Admin\AppData\Local\Temp\440d10b21c273ebe7325f2998204d704.exe
"C:\Users\Admin\AppData\Local\Temp\440d10b21c273ebe7325f2998204d704.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1308
- 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 Internet Explorer settings
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
    3⤵
    - Manipulates Digital Signatures
    - Runs regedit.exe
    PID:2096
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
    3⤵
    - Loads dropped DLL
    - Modifies registry class
    PID:1280

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:3304

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

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:\Windows\SysWOW64\egaccess4_1071.dll

Filesize
76KB

MD5
b83f652ffa76451ae438954f89c02f62

SHA1
b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

SHA256
f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

SHA512
965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

Download Submit
C:\Windows\iaccess32.exe

Filesize
92KB

MD5
82d83d4e6dfcf2608cad8e98f94f8c52

SHA1
a7eb8b5a73502c3caa521206699dd2ad57599d45

SHA256
80211392d91228323fb4cdfe384708629ac2a1c3e80760cb99b4115a9aa61fc5

SHA512
1c83e4dd92c0297e9372d7d750a64c3a486ecb0297ae0318c6cdb4da71db953e4180da3837768314c7c36cf2407c031f953ce09a62bff2ca0985fec9d8e88aa4

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/1280-28-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1280-60-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1308-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1308-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1924-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1924-58-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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