203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2024 20:48

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General

Target

203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe
Size

135KB
MD5

a15540ba8dbe4fb4644f21d8ffc92c86
SHA1

553f7b3dc6c2fa05a4683fa662d3616e2614966d
SHA256

203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160
SHA512

99a9624bac8da8d9bd6936429a0ea783f46782dd1c27b562068656f59c4bc5757cb05691d1850ab20596cf55a976ac7798f57ecf191c4c0b41d993322797098f
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Q5:riAyLN9aa+9U2rW1ip6pr2At7NZuQ5

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4380	WwanSvc.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2964-0-0x00000000004A0000-0x00000000004C8000-memory.dmp	upx
behavioral2/files/0x00080000000234bb-3.dat	upx
behavioral2/memory/4380-5-0x0000000000B10000-0x0000000000B38000-memory.dmp	upx
behavioral2/memory/2964-4-0x00000000004A0000-0x00000000004C8000-memory.dmp	upx
behavioral2/memory/4380-7-0x0000000000B10000-0x0000000000B38000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\WwanSvc.exe\" /run"	203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 4380	2964	203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe	83
PID 2964 wrote to memory of 4380	2964	203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe	83
PID 2964 wrote to memory of 4380	2964	203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe	83

C:\Users\Admin\AppData\Local\Temp\203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe
"C:\Users\Admin\AppData\Local\Temp\203a73bb3ae63756be082fd94a050896bbc14848718426630756f59053245160.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\WwanSvc.exe

Filesize
135KB

MD5
7681687ab4cc787608ace561c81cc0d3

SHA1
6c81d87600d63b2586bffe5aad538a93899b1f88

SHA256
d1603a6e44d1ad38411c3cbcfd136b5c621a7c70716690079a6c517bd03bf0ab

SHA512
61964103ad941dfbd874cfbd3c677c76b4468a92427adccd27a56dc6a7ffb6abd512551b8fa6c1682e7fbac8df396c36bde157aacd50b1d409ceab6a45452ccf

Download Submit
memory/2964-0-0x00000000004A0000-0x00000000004C8000-memory.dmp

Filesize
160KB

Download
memory/2964-4-0x00000000004A0000-0x00000000004C8000-memory.dmp

Filesize
160KB

Download
memory/4380-5-0x0000000000B10000-0x0000000000B38000-memory.dmp

Filesize
160KB

Download
memory/4380-7-0x0000000000B10000-0x0000000000B38000-memory.dmp

Filesize
160KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads