a3eb054c8a332d6955e8196a31c771828d3608b0ea3aa99d171d60687c5fe007

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 14:05

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General

Target

9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe
Size

135KB
MD5

9b5d597e4d5ab2aa6ddf45eff7bcf720
SHA1

6ba2abf3f523cd09130e2c530da1f9e8514a8879
SHA256

a3eb054c8a332d6955e8196a31c771828d3608b0ea3aa99d171d60687c5fe007
SHA512

3b5bb28ab7b7556ee3d0582a13d85c0e6794a91cd12467a50333e30f31caaf5afc2b1dc079fe72601ce62270e0d2459d5eccc025d07d16a0b87f0654fa7f892f
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Q1:riAyLN9aa+9U2rW1ip6pr2At7NZuQ1

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3876	WwanSvc.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4948-0-0x0000000000D40000-0x0000000000D68000-memory.dmp	upx
behavioral2/files/0x0008000000023490-3.dat	upx
behavioral2/memory/4948-4-0x0000000000D40000-0x0000000000D68000-memory.dmp	upx
behavioral2/memory/3876-6-0x0000000000870000-0x0000000000898000-memory.dmp	upx
behavioral2/memory/3876-7-0x0000000000870000-0x0000000000898000-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"	9b5d597e4d5ab2aa6ddf45eff7bcf720N.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	9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 3876	4948	9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe	83
PID 4948 wrote to memory of 3876	4948	9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe	83
PID 4948 wrote to memory of 3876	4948	9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe	83

C:\Users\Admin\AppData\Local\Temp\9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe
"C:\Users\Admin\AppData\Local\Temp\9b5d597e4d5ab2aa6ddf45eff7bcf720N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4948
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3876

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
9f35fc831f00574118517bed454398de

SHA1
f6cf2c4b5448f7aa3d2d0346bc50df489b81b9a5

SHA256
8f2df18eee09c1aeced7598c6cd97ebd2d41f20ccabe85ea5d8b299cef757034

SHA512
267e907d769b30edac1c6fa7241650b613a00772736f3212b3d7fa05c0dfff4d70132e8f80c8ed8d67d3855f37889cc02c89ad2d21ae2391c6ca5686074a3cbf

Download Submit
memory/3876-6-0x0000000000870000-0x0000000000898000-memory.dmp

Filesize
160KB

Download
memory/3876-7-0x0000000000870000-0x0000000000898000-memory.dmp

Filesize
160KB

Download
memory/4948-0-0x0000000000D40000-0x0000000000D68000-memory.dmp

Filesize
160KB

Download
memory/4948-4-0x0000000000D40000-0x0000000000D68000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads