89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda

General

Target

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Size

69KB
MD5

59de701fe87acd8863e5175d6f33cd1b
SHA1

04795374816358bbdd9015ba77abdc1ca6a84065
SHA256

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda
SHA512

11315ae8778f1f713979106668a2b5945bab6e8ad28d0ed7f0be2a7113b23c4851470730938dc74a378c482de9c7365f128233ce725f5af7668aad83cdf903ba
SSDEEP

1536:2lB+r9Byk/wG4N94T0rXJx3aGGRWoHMEEFEo6:+B+rqltgHMEEFEo6

Score

9^/10

adware persistence stealer upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Windows\SysWOW64\savec32.dll	acprotect
C:\Windows\SysWOW64\savec32.dll	acprotect

Modifies Installed Components in the registry 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}\ = "DCOM service"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}\Locale = "EN"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}\StubPath = "rundll32 savec32.dll,InitO"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}\IsInstalled = "1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{01BE3276-1420-45b5-9762-172C5C184EB7}\Version = "4,3,6,3"	rundll32.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\savec32.dll	upx
C:\Windows\SysWOW64\savec32.dll	upx
behavioral2/memory/4248-136-0x0000000020000000-0x0000000020023000-memory.dmp	upx

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

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4248 rundll32.exe

pid	process
4248	rundll32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{E8FD36B2-A25B-47e3-9477-82557F5F5995}	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Drops file in System32 directory 2 IoCs

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	ioc	process
File created	C:\Windows\SysWOW64\ekd.txt	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
File created	C:\Windows\SysWOW64\savec32.dll	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Drops file in Windows directory 1 IoCs

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description ioc process

File created C:\Windows\inform.dat 89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\inform.dat	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Modifies registry class 9 IoCs

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\ProgID\ = "RITLAB.1"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\ = "Rmn plugin"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\InprocServer32	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\TypeLib	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\TypeLib\ = "{54197CBC-3D68-4e8d-8DD2-BD9D50342244}"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\InprocServer32\ = "savec32.dll"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\InprocServer32\ThreadingModel = "Apartment"	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E8FD36B2-A25B-47e3-9477-82557F5F5995}\ProgID	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe

description	pid	process	target process
PID 1540 wrote to memory of 4248	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	rundll32.exe
PID 1540 wrote to memory of 4248	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	rundll32.exe
PID 1540 wrote to memory of 4248	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	rundll32.exe
PID 1540 wrote to memory of 4368	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	cmd.exe
PID 1540 wrote to memory of 4368	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	cmd.exe
PID 1540 wrote to memory of 4368	1540	89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe
"C:\Users\Admin\AppData\Local\Temp\89897675e760194e89e17ec2588f91d1c85aa93d9132c65258db4a87877fadda.exe"
1⤵
- Checks computer location settings
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" savec32.dll,InitDll
2⤵
- Modifies Installed Components in the registry
- Loads dropped DLL
PID:4248

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\898976~1.EXE >> NUL
2⤵
PID:4368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\savec32.dll
Filesize
44KB

MD5
a7e9dd508c1ed1e7b4af7f1507e9bac5

SHA1
8c9850e485a42fab8d65bdd4a5c3a014715b3406

SHA256
88ef17464130d253535a353e5eea57c5156334533500edbf15280f31d49be3b4

SHA512
c1ddbbeae9e5767c7035739d461ad552f5371c0514d1c149e79b1091a6d27f2ceefe19ca48e4e508c9718998a806e5a9e66ecfec81292a21d7993529a9503f94

Download Submit
C:\Windows\SysWOW64\savec32.dll
Filesize
44KB

MD5
a7e9dd508c1ed1e7b4af7f1507e9bac5

SHA1
8c9850e485a42fab8d65bdd4a5c3a014715b3406

SHA256
88ef17464130d253535a353e5eea57c5156334533500edbf15280f31d49be3b4

SHA512
c1ddbbeae9e5767c7035739d461ad552f5371c0514d1c149e79b1091a6d27f2ceefe19ca48e4e508c9718998a806e5a9e66ecfec81292a21d7993529a9503f94

Download Submit
memory/4248-132-0x0000000000000000-mapping.dmp

Download
memory/4248-136-0x0000000020000000-0x0000000020023000-memory.dmp

Filesize
140KB

Download
memory/4368-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads