5cbb7af1ab7f0d8de6026001ea504da34d5ab917eca99d3285eab59f67f3177f

General

Target

49ca85dbd5095b14997e7a22c36ce5e1.exe
Size

245KB
MD5

49ca85dbd5095b14997e7a22c36ce5e1
SHA1

c2d98f85b0cb72173dc01cca1bce491ea572dfff
SHA256

5cbb7af1ab7f0d8de6026001ea504da34d5ab917eca99d3285eab59f67f3177f
SHA512

33203bc02aea4f3c48b08b4b758c14761e9b92c5a2949150950c070846a4a29eb9337d256bcbcbc46d3ab8cf3c8e80044572cbe14e5d97735bafc21919cc774a
SSDEEP

6144:h1OgDPdkBAFZWjadD4s55gL0WRPl5a1hRYpBuVnW:h1OgLdaOIFraG+nW

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1976	5073e05a4220a.exe

Loads dropped DLL 3 IoCs

pid	Process
1192	49ca85dbd5095b14997e7a22c36ce5e1.exe
1976	5073e05a4220a.exe
1976	5073e05a4220a.exe

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{7623C192-C3FE-549D-0144-1571B1716396}	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{7623C192-C3FE-549D-0144-1571B1716396}\ = "wxDownload"	5073e05a4220a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{7623C192-C3FE-549D-0144-1571B1716396}\NoExplorer = "1"	5073e05a4220a.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral1/files/0x0007000000014703-13.dat	nsis_installer_1
behavioral1/files/0x0007000000014703-13.dat	nsis_installer_2

Modifies registry class 25 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx.4\CLSID\ = "{7623C192-C3FE-549D-0144-1571B1716396}"	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\InprocServer32\ = "C:\\ProgramData\\wxDownload\\5073e05a42243.ocx"	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\Programmable	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx.4\CLSID	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx\CLSID	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx\CurVer	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\InprocServer32\ThreadingModel = "Apartment"	5073e05a4220a.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\InprocServer32	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\InprocServer32	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx.4\ = "wxDownload"	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx\CurVer\ = "5073e05a42243.ocx.4"	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\ProgID	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx\CLSID\ = "{7623C192-C3FE-549D-0144-1571B1716396}"	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\ProgID\ = "5073e05a42243.ocx.4"	5073e05a4220a.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\ProgID	5073e05a4220a.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\Programmable	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\ = "wxDownload Class"	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\VersionIndependentProgID	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\VersionIndependentProgID\ = "5073e05a42243.ocx"	5073e05a4220a.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}\VersionIndependentProgID	5073e05a4220a.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7623C192-C3FE-549D-0144-1571B1716396}	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx.4	5073e05a4220a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx	5073e05a4220a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5073e05a42243.ocx.5073e05a42243.ocx\ = "wxDownload"	5073e05a4220a.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14
PID 1192 wrote to memory of 1976	1192	49ca85dbd5095b14997e7a22c36ce5e1.exe	14

C:\Users\Admin\AppData\Local\Temp\7zSA5D.tmp\5073e05a4220a.exe
.\5073e05a4220a.exe /s
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1976

C:\Users\Admin\AppData\Local\Temp\49ca85dbd5095b14997e7a22c36ce5e1.exe
"C:\Users\Admin\AppData\Local\Temp\49ca85dbd5095b14997e7a22c36ce5e1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zSA5D.tmp\5073e05a4220a.exe

Filesize
65KB

MD5
4ccf1a317aa8539c857835e4ebe9c806

SHA1
223b73d09d7398f40aff3ccc569e66cae3886ee9

SHA256
4529889c5575cd4e28b3691f0489c806442840292a9e459ada4dab3e024cc242

SHA512
ecab68799b5a51c7d2a3735a9b3c17ba20a315618aa9575a5b02d5d4535716966031a26982012669f069dbfd8a6ab62f95737b7c402bf680f3a498900f627312

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA5D.tmp\5073e05a4227b.html

Filesize
4KB

MD5
a23c3c0f55c7572a14ed3c3d1767ac38

SHA1
cb169db17be884b2a51e6569accb70413826c500

SHA256
11f199c534034d7e94d95b21bb8adbff654880cdd2afdb231574c89e2ddbe16a

SHA512
db75ea1827e6461b3999d188e635c7d8e74b670a97f8cc889c3b37028819e7d516d821f0159e9ce105286e5b9b5acfb8c86b4f153ae0ad5b46335883656a2758

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA5D.tmp\settings.ini

Filesize
753B

MD5
4526fe6d4925e4284dbc8fe2f077a4be

SHA1
65eee3a6a7c2bc875f22f2ddcc9124a002af7204

SHA256
10a59b99552d259a16e8e97e2cc20d75fc33fa8392d4c9da4acd27de71d586c8

SHA512
72e4d8cc38014a4bc6e59110883d5b3ee624afb80cc433c26c8ff5d512697e042570cc034e1a57289b8ae24635b2fb20f528736600713ff1783bc1ea4b464558

Download Submit
\Users\Admin\AppData\Local\Temp\nsdA9C.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit

Analysis

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