5b5995130b83235a453c65d4d2658923e342a3f2b0c32eb6fd8a0eabab232c6c

General

Target

44e0cbba32629a64d57e8bf85cc98127.exe
Size

123KB
MD5

44e0cbba32629a64d57e8bf85cc98127
SHA1

d34e9ab996212b47ee3a08164d2cc637d5a4321a
SHA256

5b5995130b83235a453c65d4d2658923e342a3f2b0c32eb6fd8a0eabab232c6c
SHA512

122dc42569d5c655a8a5f5b54872a7a7550f7487c56a188df4bd2ef1dbbe4d8aabc8d46b627f5b92caff297b0f04711220fa262c20495dad4562aa6a81c7af68
SSDEEP

3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLbZt14:OVYrJrOSsRwcpha

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-1-5-21-1815711207-1844170477-3539718864-1000\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/0x000600000002323a-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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	iaccess32.exe

Executes dropped EXE 1 IoCs

pid	Process
3788	iaccess32.exe

Loads dropped DLL 1 IoCs

pid	Process
616	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2516-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00050000000006e9-3.dat	upx
behavioral2/memory/2516-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3788-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000600000002323a-27.dat	upx
behavioral2/memory/616-28-0x0000000010000000-0x0000000010047000-memory.dmp	upx
behavioral2/memory/3788-56-0x0000000000400000-0x000000000042E000-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\20100713150729\Common\module.php	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\medias\p2e_logo_2.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\instant access.exe	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\medias\p2e_2_3.gif	iaccess32.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100713150729\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\20100713150729\medias\p2e_go_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\medias\p2e.ico	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\dialerexe.ini	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\20100713150729\medias\p2e_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100713150729\medias\p2e_3_3.gif	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	44e0cbba32629a64d57e8bf85cc98127.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 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}	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
1036	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2516	44e0cbba32629a64d57e8bf85cc98127.exe
3788	iaccess32.exe
3788	iaccess32.exe
3788	iaccess32.exe
3788	iaccess32.exe
3788	iaccess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 3788	2516	44e0cbba32629a64d57e8bf85cc98127.exe	88
PID 2516 wrote to memory of 3788	2516	44e0cbba32629a64d57e8bf85cc98127.exe	88
PID 2516 wrote to memory of 3788	2516	44e0cbba32629a64d57e8bf85cc98127.exe	88
PID 3788 wrote to memory of 1036	3788	iaccess32.exe	92
PID 3788 wrote to memory of 1036	3788	iaccess32.exe	92
PID 3788 wrote to memory of 1036	3788	iaccess32.exe	92
PID 3788 wrote to memory of 616	3788	iaccess32.exe	93
PID 3788 wrote to memory of 616	3788	iaccess32.exe	93
PID 3788 wrote to memory of 616	3788	iaccess32.exe	93

C:\Users\Admin\AppData\Local\Temp\44e0cbba32629a64d57e8bf85cc98127.exe
"C:\Users\Admin\AppData\Local\Temp\44e0cbba32629a64d57e8bf85cc98127.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2516
- 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:3788
- - C:\Windows\SysWOW64\regedit.exe
    "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
    3⤵
    - Manipulates Digital Signatures
    - Runs regedit.exe
    PID:1036
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
    3⤵
    - Loads dropped DLL
    - Modifies registry class
    PID:616

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:3128

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
d031fb9ce291c03710c368f5c0f8abcc

SHA1
72219e21e1e10342d6e29b2465b8889b10e113a8

SHA256
02197b197bc4fac406239985f208fc349a51a21411a27c6625c39e9952a22f35

SHA512
8cb794089dbe96e864b3e5f1adb54d216d89c7444f023505fc3fa28599be453567c9e4fbd0655598798892b9d51dae6e2146cfa0099ccef25707296b7267a616

Download Submit
C:\Program Files (x86)\Instant Access\Multi\20100713150729\dialerexe.ini

Filesize
587B

MD5
7eaf6d35ad747dec177622d9890d5f14

SHA1
f43c060f62caca096845d001ca9dc2efa3669d5e

SHA256
2a5f1abbd1a43b115f1ff594c33ba2609af3ccf37e614573c1d4e599e95a3dbf

SHA512
16edb38b08a14504fab7d7e0ae90e19f148c976dfdd2a6bb1fd2ed183274c861c0a3f9af8c544dd09b8e4dafcf929be20cf0612fc189ef50037bac48e543cc55

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
cf010f752e6d51da389d4e46d0be51cc

SHA1
e1bee17a906aa6e4db1e3548efde266093954bbb

SHA256
a6c2792dbd60ed1626e3f9a59050451be0fc9350e0271c83b487d4203e791394

SHA512
74eeb3b08eaf63f33a5806a2486fac58d59309ca74b5ca59aa4fcce8c2c6d9b43427f19f04287a2ecc3ba18af18b25e9509c5dc710d97d9faa078bf5e7cf8bdd

Download Submit
C:\Windows\tmlpcert2007

Filesize
6KB

MD5
b103757bc3c714123b5efa26ff96a915

SHA1
991d6694c71736b59b9486339be44ae5e2b66fef

SHA256
eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

SHA512
d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

Download Submit
memory/616-28-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/2516-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2516-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3788-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3788-56-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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