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 2 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 (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\Trust Database\0\goicfboogidikkejccmclpieicihhlpo jimddp = "electronic-group"	iaccess32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\SystemCertificates\TrustedPublisher\Certificates\62119EF862C6B3A0D853419B87EB3E2F6C78640A\Blob = 03000000010000001400000062119ef862c6b3a0d853419b87eb3e2f6c78640a2000000001000000df030000308203db30820344a00302010202033fc398300d06092a864886f70d01010405003055310b3009060355040613025a4131253023060355040a131c54686177746520436f6e73756c74696e67202850747929204c74642e311f301d0603550403131654686177746520436f6465205369676e696e67204341301e170d3035303831353031353134345a170d3037303931363133323531325a30818b310b3009060355040613024652310e300c0603550408130552686f6e65310d300b060355040713044c796f6e31193017060355040a1310656c656374726f6e69632d67726f757031273025060355040b131e536563757265204170706c69636174696f6e20446576656c6f706d656e743119301706035504031310656c656374726f6e69632d67726f757030820122300d06092a864886f70d01010105000382010f003082010a0282010100e2754d8a4e6d4db6e025b0073520ddd7eeec116a813940fda2c4c66f7a354adb3036188d4078f8891b3fe15d467dfba5e17984cac2b246c27c052e63956dfe817eb423b9615bddfddaadac5e2ac0f41f583edd24d7830f5875df2937a9152b741eef3950e5116e76d2e7e3ffdf6fcb5858af26f5e2effd019a1f82b98d7f21ed089d5bb8553cd89c823becaeb62ea1cc4b455cb4e93e8ac715320f31dc3fbc2d0be0d65c608c58c19ff06da7bc1ec48a45ef0219eef40294504e2663b1c9dad6a2241df996c59cf110b706285fbaeae0c55d776573536218c3c7ae248b82cae01513cd8b2828a94f4a70ba6e199919a0f5eae20643feaabebe2ba3b2819e92790203010001a381fd3081fa301f0603551d250418301606082b06010505070303060a2b060104018237020116301106096086480186f8420101040403020410301d0603551d0404163014300e300c060a2b0601040182370201160302078030230603551d11041c301a82187777772e656c656374726f6e69632d67726f75702e636f6d303e0603551d1f043730353033a031a02f862d687474703a2f2f63726c2e7468617774652e636f6d2f546861777465436f64655369676e696e6743412e63726c303206082b0601050507010104263024302206082b060105050730018616687474703a2f2f6f6373702e7468617774652e636f6d300c0603551d130101ff04023000300d06092a864886f70d01010405000381810075160a692f4bc2096bce67c58b0d88320552104e4d35f5018bc2ab1be03ecae3c0abe7db45629b1b3c1812039145c15d6f2774c211a2c86f93a819573d58a3c0e66d1e19e84638800e3372880b4e9cdcf70cc769bdeff236ed3ac6f20e370122fa791e71b0ea8be78077ffc288c382b201d78ea8bbf9e9457fad4ee80273279c	regedit.exe

Executes dropped EXE 1 IoCs

pid	Process
2220	iaccess32.exe

Loads dropped DLL 3 IoCs

pid	Process
2548	regsvr32.exe
2220	iaccess32.exe
2220	iaccess32.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000b000000014534-7.dat	upx
behavioral1/memory/2968-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2968-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-77-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-78-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-79-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-80-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-81-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-82-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-84-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-85-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-86-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-87-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-88-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-89-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-90-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-91-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2220-92-0x0000000000400000-0x000000000042E000-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\dialerexe.ini	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_1_3.gif	iaccess32.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20100715190726\medias\p2e_2_3.gif	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\DesktopIcons\NOCREDITCARD.lnk	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\Common\module.php	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\Multi\20100715190726\medias\p2e.ico	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 opened for modification	C:\Program Files (x86)\Instant Access\Multi\20100715190726\dialerexe.ini	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 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iaccess32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iaccess32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main	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
3052	regedit.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2968	4442e2acdcf1e78ea7b2330cf9141366.exe
2220	iaccess32.exe
2220	iaccess32.exe
2220	iaccess32.exe
2220	iaccess32.exe
2220	iaccess32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2220	2968	4442e2acdcf1e78ea7b2330cf9141366.exe	19
PID 2968 wrote to memory of 2220	2968	4442e2acdcf1e78ea7b2330cf9141366.exe	19
PID 2968 wrote to memory of 2220	2968	4442e2acdcf1e78ea7b2330cf9141366.exe	19
PID 2968 wrote to memory of 2220	2968	4442e2acdcf1e78ea7b2330cf9141366.exe	19
PID 2220 wrote to memory of 3052	2220	iaccess32.exe	16
PID 2220 wrote to memory of 3052	2220	iaccess32.exe	16
PID 2220 wrote to memory of 3052	2220	iaccess32.exe	16
PID 2220 wrote to memory of 3052	2220	iaccess32.exe	16
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17
PID 2220 wrote to memory of 2548	2220	iaccess32.exe	17

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:2968
- C:\Windows\iaccess32.exe
  C:\Windows\iaccess32.exe
  2⤵
  - Manipulates Digital Signatures
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2220

C:\Windows\SysWOW64\regedit.exe
"C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
1⤵
- Manipulates Digital Signatures
- Runs regedit.exe
PID:3052

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
1⤵
- Loads dropped DLL
- Modifies registry class
PID:2548

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\iaccess32.exe

Filesize
123KB

MD5
f52030f0647eaea9e6d0f650651aa0b0

SHA1
322ba6cdc8cfab4cfc5edabb7b67ad8bd119ce4d

SHA256
df971af3602039dd68ebf990da5635209f2ee2aecdfe6d02c268e6cf3383543e

SHA512
342179e964aeb21ff9f9462fef71322453c0c5e816cbb33abaf5d674ab0f9799083c3faac37d4951a42fb03e6935bd7d5fd0d7f94e15e5215f8fddad2497ad2a

Download Submit
memory/2220-86-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-88-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-81-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-84-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-82-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-92-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-77-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-78-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-79-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-80-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-91-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-90-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-55-0x0000000001EF0000-0x0000000001F00000-memory.dmp

Filesize
64KB

Download
memory/2220-85-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-56-0x0000000001EF0000-0x0000000001F00000-memory.dmp

Filesize
64KB

Download
memory/2220-87-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2220-89-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2968-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2968-8-0x00000000005F0000-0x000000000061E000-memory.dmp

Filesize
184KB

Download
memory/2968-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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