1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
04-06-2024 19:27

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General

Target

1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe
Size

134KB
MD5

b88c0c00ed47b73e3198962c411bbebb
SHA1

abf76c2a8ae5cdae315c251c1059474fd9c53147
SHA256

1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c
SHA512

bc32da709cbc0a9376a7837a7cf3c60f2ecd9ced13b290c9338b7445f30cc5247c67d9405adbd9ae578c82b4f680e159773ac54fca6e44a17e4470260be24754
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Q0:riAyLN9aa+9U2rW1ip6pr2At7NZuQ0

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral1/memory/2056-0-0x0000000000820000-0x0000000000848000-memory.dmp	UPX
behavioral1/files/0x0031000000015d12-2.dat	UPX
behavioral1/memory/2104-7-0x0000000000030000-0x0000000000058000-memory.dmp	UPX
behavioral1/memory/2056-8-0x0000000000820000-0x0000000000848000-memory.dmp	UPX
behavioral1/memory/2104-10-0x0000000000030000-0x0000000000058000-memory.dmp	UPX
behavioral1/memory/2056-11-0x0000000000820000-0x0000000000848000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2104	WwanSvc.exe

Loads dropped DLL 1 IoCs

pid	Process
2056	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2056-0-0x0000000000820000-0x0000000000848000-memory.dmp	upx
behavioral1/files/0x0031000000015d12-2.dat	upx
behavioral1/memory/2104-7-0x0000000000030000-0x0000000000058000-memory.dmp	upx
behavioral1/memory/2056-8-0x0000000000820000-0x0000000000848000-memory.dmp	upx
behavioral1/memory/2104-10-0x0000000000030000-0x0000000000058000-memory.dmp	upx
behavioral1/memory/2056-11-0x0000000000820000-0x0000000000848000-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"	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2104	2056	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe	28
PID 2056 wrote to memory of 2104	2056	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe	28
PID 2056 wrote to memory of 2104	2056	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe	28
PID 2056 wrote to memory of 2104	2056	1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe	28

C:\Users\Admin\AppData\Local\Temp\1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe
"C:\Users\Admin\AppData\Local\Temp\1f8c588e316396e4257a333280d89572c09580bc92a041e94bc9a4b82e2afc4c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2056
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2104

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\WwanSvc.exe

Filesize
134KB

MD5
941a80341ee8e9d9b894cdbc198d2f92

SHA1
1d0d501923ad3e29403806cc457319e6ff816be8

SHA256
387bb28d6aba9e9872bf065103e4ce8e999cf14affe04d5113832766352fa554

SHA512
ff712e0b38a90c7dab56e28260aef6db83f495cd07db82392a2a46ec545d410819b5b1ea51f992753b6079791b1cd638a68aa7e94d0899c77b96b51fe2b20451

Download Submit
memory/2056-0-0x0000000000820000-0x0000000000848000-memory.dmp

Filesize
160KB

Download
memory/2056-5-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/2056-8-0x0000000000820000-0x0000000000848000-memory.dmp

Filesize
160KB

Download
memory/2056-9-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/2056-11-0x0000000000820000-0x0000000000848000-memory.dmp

Filesize
160KB

Download
memory/2104-7-0x0000000000030000-0x0000000000058000-memory.dmp

Filesize
160KB

Download
memory/2104-10-0x0000000000030000-0x0000000000058000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads