4a02a9b7a72a7f5cdfa9ea3abf03d4373afd27db536f83638141024223c85316

General

Target

42e76422dece95c36ad0fa2245793c75.exe
Size

123KB
MD5

42e76422dece95c36ad0fa2245793c75
SHA1

8ef050403d44d668c2ab717eef221a01f2878f94
SHA256

4a02a9b7a72a7f5cdfa9ea3abf03d4373afd27db536f83638141024223c85316
SHA512

697dbd0d929548f9b5149281aff080fa78febcd52f44d93c48de7a8e7b9ddae714c57d33133bd0fdce6328abe8d7b8a3753f1359b3700c22cc8ffd85a4c92e46
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLL6WTg87:OVYrJrOSsRwcp1TN

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-1-5-21-3073191680-435865314-2862784915-1000\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/0x000200000001e803-33.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
4616	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
1248	regsvr32.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1268-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1268-1-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000200000001e7f4-6.dat	upx
behavioral2/memory/4616-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1268-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-32-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000200000001e803-33.dat	upx
behavioral2/memory/1248-35-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/4616-63-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-70-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4616-71-0x0000000000400000-0x000000000042E000-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\20100712090731\medias\p2e_2_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\dialerexe.ini	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100712090731\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\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\Multi\20100712090731\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Center\NOCREDITCARD.lnk	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100712090731\Common\module.php	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\20100712090731\medias\p2e.ico	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
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	42e76422dece95c36ad0fa2245793c75.exe
File created	C:\Windows\tmlpcert2007	iaccess32.exe
File created	C:\Windows\dialexe.zl	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
1976	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1268	42e76422dece95c36ad0fa2245793c75.exe
4616	iaccess32.exe
4616	iaccess32.exe
4616	iaccess32.exe
4616	iaccess32.exe
4616	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 4616	1268	42e76422dece95c36ad0fa2245793c75.exe	93
PID 1268 wrote to memory of 4616	1268	42e76422dece95c36ad0fa2245793c75.exe	93
PID 1268 wrote to memory of 4616	1268	42e76422dece95c36ad0fa2245793c75.exe	93
PID 4616 wrote to memory of 1976	4616	iaccess32.exe	95
PID 4616 wrote to memory of 1976	4616	iaccess32.exe	95
PID 4616 wrote to memory of 1976	4616	iaccess32.exe	95
PID 4616 wrote to memory of 1248	4616	iaccess32.exe	96
PID 4616 wrote to memory of 1248	4616	iaccess32.exe	96
PID 4616 wrote to memory of 1248	4616	iaccess32.exe	96

C:\Users\Admin\AppData\Local\Temp\42e76422dece95c36ad0fa2245793c75.exe
"C:\Users\Admin\AppData\Local\Temp\42e76422dece95c36ad0fa2245793c75.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1268
- 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:4616
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
    3⤵
    - Manipulates Digital Signatures
    - Runs regedit.exe
    PID:1976
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
    3⤵
    - Loads dropped DLL
    - Modifies registry class
    PID:1248

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:116

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
460bdf2464bf947bc59a8de8c6816767

SHA1
1c848374fe9fe50648acb56540a68b7b2a593543

SHA256
993a9f49e5a1ff209544a0d31f8e6ae30d0ada879eb362e40faa0680fe27921c

SHA512
98c10a8db06eba9337f2fe3d43ebb4926302dbfce537e65a9c8c87614b71a9034b3193a77d56ea884259434b4e86878bffa5b380fdd2dd1f7ea66a85d0d6e353

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

Filesize
76KB

MD5
b83f652ffa76451ae438954f89c02f62

SHA1
b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

SHA256
f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

SHA512
965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

Download Submit
C:\Windows\dialerexe.ini

Filesize
587B

MD5
5899357bc7722002bc43a17ea5dcefc9

SHA1
15d98ed40f86d367e0f84abcdb93f9a8dd82eaff

SHA256
10dfea2487ce61b6d7ff025a6775f1d0876d6a3c4c13783c3fd052423a9f8057

SHA512
17182c9a4206e72f3d1acd788b6d11a671a5ef8a5490d5a29751e46493252a40c318a53bc2f0fa3749fb5e0647d770991aad6cb2c089930d9a7b39a918779490

Download Submit
C:\Windows\iaccess32.exe

Filesize
123KB

MD5
e787c10f865d74552d23a942cd1d960e

SHA1
19db759f2d9632804ab3f9b64200b3533a0f4783

SHA256
0ae23bb71f8a129f50e78566c9b4167b2b5105c01fdc44148a102c568428ab91

SHA512
3173c351721e5219ffc31adbb11b29306a6b6536ea05084463ffdd82959c7f8b4f03546c10914cdc1d4c3bfdb1b274d9d5c0bee17ead11015bb349e9e9b174f7

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/1248-35-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1268-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1268-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1268-1-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-32-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4616-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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