5af2208fbb026dd6aa0a89fa1bf544f163ef5903ed3573e9fb919d92da488524

General

Target

4442e2acdcf1e78ea7b2330cf9141366.exe
Size

123KB
MD5

4442e2acdcf1e78ea7b2330cf9141366
SHA1

bb6f3c86b7e661c9cf97e179f9c915b93fca941a
SHA256

5af2208fbb026dd6aa0a89fa1bf544f163ef5903ed3573e9fb919d92da488524
SHA512

c5ca3dcce564cdc070ef4046edd70d05a84e043dc0f6a4988aa4d2ab1f1acd063cc85c83c8c559672476895f2750b397c90aeb3c151b4f42dd93295fc043d480
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLPn4OHDA:OVYrJrOSsRwcpxlE

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/0x0006000000023215-27.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
764	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
5044	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4840-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4840-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/764-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0006000000023215-27.dat	upx
behavioral2/files/0x000300000001e982-4.dat	upx
behavioral2/files/0x000b0000000231e9-39.dat	upx
behavioral2/memory/764-57-0x0000000000400000-0x000000000042E000-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\20100715190726\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\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\20100715190726\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\medias\p2e_2_3.gif	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100715190726\dialerexe.ini	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\medias\p2e_1_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\20100715190726\medias\p2e_3_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk	iaccess32.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\iaccess32.exe	4442e2acdcf1e78ea7b2330cf9141366.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 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
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
2896	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4840	4442e2acdcf1e78ea7b2330cf9141366.exe
764	iaccess32.exe
764	iaccess32.exe
764	iaccess32.exe
764	iaccess32.exe
764	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 764	4840	4442e2acdcf1e78ea7b2330cf9141366.exe	24
PID 4840 wrote to memory of 764	4840	4442e2acdcf1e78ea7b2330cf9141366.exe	24
PID 4840 wrote to memory of 764	4840	4442e2acdcf1e78ea7b2330cf9141366.exe	24
PID 764 wrote to memory of 2896	764	iaccess32.exe	21
PID 764 wrote to memory of 2896	764	iaccess32.exe	21
PID 764 wrote to memory of 2896	764	iaccess32.exe	21
PID 764 wrote to memory of 5044	764	iaccess32.exe	23
PID 764 wrote to memory of 5044	764	iaccess32.exe	23
PID 764 wrote to memory of 5044	764	iaccess32.exe	23

C:\Users\Admin\AppData\Local\Temp\4442e2acdcf1e78ea7b2330cf9141366.exe
"C:\Users\Admin\AppData\Local\Temp\4442e2acdcf1e78ea7b2330cf9141366.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4840
- 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:764

C:\Windows\SysWOW64\regedit.exe
"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
1⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:2896

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:2880

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
1⤵
- Loads dropped DLL
- Modifies registry class
PID:5044

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

Filesize
2KB

MD5
4966b50d7efac1eb8f2176d83919d7f1

SHA1
edb626ac979e05fa3550c4ff1389212bd3fa9def

SHA256
17830724acdd839e9b0d31675e8080c80df5b2c8687fb66b7eaa81533602ab4f

SHA512
eff284a0b3b50af8213b51a8583dfef363930d06b238d5fd82bd8c7c6b021cd3203f8ab3a37a23b37dc5c3687e6f0b7fa754cfb7e1bc6db3005a48baa905418a

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20100715190726\dialerexe.ini

Filesize
587B

MD5
2f496b368a396d9ab6d351294aa1144e

SHA1
1b8e105027fe62fdd5defdda9a8ea7c63dbe6afe

SHA256
9b04e702c6d30830b0d6c5283af7173817eb646817f13a8087912d3e4668bb6d

SHA512
3f0a2b4e5e1e6486f50d92d46cf00238cac320299cce2b5d17f5a105e960c345fd524e8a2b2654a4dfb370fba856891b76a9d015afa4a2cec3ced938273f3e2b

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20100715190726\instant access.exe

Filesize
98KB

MD5
72b54990859829bfe7d6be518d65bc4f

SHA1
7d710a0d51d808d0e3dbb189949984ea425c5978

SHA256
01fcc5faa0a2549d39aacff8b1c6b6f66db570af14699e840cb337c7a9ccbc31

SHA512
c5dcade31f109b886984eccc858f6609ccc2032f4b86977b6fd70cf774127e1b48480fbb1bd18568e189990d627c2eab7737c83bc6cac05def4c4391b5494167

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
f52030f0647eaea9e6d0f650651aa0b0

SHA1
322ba6cdc8cfab4cfc5edabb7b67ad8bd119ce4d

SHA256
df971af3602039dd68ebf990da5635209f2ee2aecdfe6d02c268e6cf3383543e

SHA512
342179e964aeb21ff9f9462fef71322453c0c5e816cbb33abaf5d674ab0f9799083c3faac37d4951a42fb03e6935bd7d5fd0d7f94e15e5215f8fddad2497ad2a

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/764-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/764-57-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4840-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4840-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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