6c5bb3000f9033c937d54ce5764269029825779aa6a079146335570ac349be38

Analysis

max time kernel
30s
max time network
24s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-08-2024 22:51

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General

Target

1b4e7555cce061ef7c78a9af8a4d3c70N.exe
Size

134KB
MD5

1b4e7555cce061ef7c78a9af8a4d3c70
SHA1

ced9d86e33709c3b82b5a324dcf95bfc881a75da
SHA256

6c5bb3000f9033c937d54ce5764269029825779aa6a079146335570ac349be38
SHA512

19f468d83260b6918ea6bfb1f8522c7ac3c5fee562bb8f4dfddff608571d7874a958c7961a6030cb86ca1d98cb0b231ecf179e45068c58e11ab664e35102c6f5
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QKl:riAyLN9aa+9U2rW1ip6pr2At7NZuQE

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
996	WwanSvc.exe

Loads dropped DLL 1 IoCs

pid	Process
3036	1b4e7555cce061ef7c78a9af8a4d3c70N.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3036-0-0x0000000000F10000-0x0000000000F38000-memory.dmp	upx
behavioral1/files/0x0007000000019603-5.dat	upx
behavioral1/memory/996-7-0x0000000000100000-0x0000000000128000-memory.dmp	upx
behavioral1/memory/3036-8-0x0000000000F10000-0x0000000000F38000-memory.dmp	upx
behavioral1/memory/996-10-0x0000000000100000-0x0000000000128000-memory.dmp	upx
behavioral1/memory/3036-11-0x0000000000F10000-0x0000000000F38000-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"	1b4e7555cce061ef7c78a9af8a4d3c70N.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	WwanSvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b4e7555cce061ef7c78a9af8a4d3c70N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 996	3036	1b4e7555cce061ef7c78a9af8a4d3c70N.exe	29
PID 3036 wrote to memory of 996	3036	1b4e7555cce061ef7c78a9af8a4d3c70N.exe	29
PID 3036 wrote to memory of 996	3036	1b4e7555cce061ef7c78a9af8a4d3c70N.exe	29
PID 3036 wrote to memory of 996	3036	1b4e7555cce061ef7c78a9af8a4d3c70N.exe	29

C:\Users\Admin\AppData\Local\Temp\1b4e7555cce061ef7c78a9af8a4d3c70N.exe
"C:\Users\Admin\AppData\Local\Temp\1b4e7555cce061ef7c78a9af8a4d3c70N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:996

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
134KB

MD5
5c057b23040876bf5163206ece79f9e9

SHA1
abd5b70af784033919afd64919137dcf190cc1cb

SHA256
6850cc75b525ed4332230ec790e7d569a5248884e737f0ac446475499d2becab

SHA512
fbe85860e57d54789e58a1bbb9b679bf9300bd5ad01a0d3227394fba398d16c2556e737d97042f3d8fafcaa85095e2a2b7113f953f00be0baeb4186c45fc9d20

Download Submit
memory/996-7-0x0000000000100000-0x0000000000128000-memory.dmp

Filesize
160KB

Download
memory/996-10-0x0000000000100000-0x0000000000128000-memory.dmp

Filesize
160KB

Download
memory/3036-0-0x0000000000F10000-0x0000000000F38000-memory.dmp

Filesize
160KB

Download
memory/3036-6-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download
memory/3036-8-0x0000000000F10000-0x0000000000F38000-memory.dmp

Filesize
160KB

Download
memory/3036-9-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download
memory/3036-11-0x0000000000F10000-0x0000000000F38000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads