3074819f7fc25a47cad228b5b75a16358241f1b24d3ec79f910e3a2eb88e82be

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 16:51

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General

Target

e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe
Size

134KB
MD5

e3ce61c34aa8f8f89cd66f2cbd5eb320
SHA1

720e5f7f17e823a074f0f93bd898e45ce1177ee1
SHA256

3074819f7fc25a47cad228b5b75a16358241f1b24d3ec79f910e3a2eb88e82be
SHA512

c6d1751fdba6c11adec6b6354042b96859837ec543b0bf98eb6c11dfdaf33cdf913d1c6847188015bf0f9ae8a6c239eee2c6218adb84ffed772914ae2cb76809
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Qf:riAyLN9aa+9U2rW1ip6pr2At7NZuQf

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1636	WwanSvc.exe

Loads dropped DLL 1 IoCs

pid	Process
992	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x002f000000015a15-1.dat	upx
behavioral1/memory/992-6-0x0000000000270000-0x0000000000298000-memory.dmp	upx
behavioral1/memory/992-3-0x0000000000AB0000-0x0000000000AD8000-memory.dmp	upx
behavioral1/memory/1636-8-0x0000000001030000-0x0000000001058000-memory.dmp	upx
behavioral1/memory/992-9-0x0000000000AB0000-0x0000000000AD8000-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"	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 1636	992	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe	28
PID 992 wrote to memory of 1636	992	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe	28
PID 992 wrote to memory of 1636	992	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe	28
PID 992 wrote to memory of 1636	992	e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe	28

C:\Users\Admin\AppData\Local\Temp\e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\e3ce61c34aa8f8f89cd66f2cbd5eb320_NEAS.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:992
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  PID:1636

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
951b44e2dd2946f979ab49a232a05def

SHA1
9c5de3aae9c5a8845983fa268180f78a1790de01

SHA256
890fd0709a9dbca490d12a1a6c2f5712eed486b34bc619ffe5ff58d4d7a4295a

SHA512
93ab94f5fcaf0eb9dcb44ca7d0338313dea51d5aed388f68bb581446c83e5d809aef13815b245f934dc1358f0c55dd9afc4fd0c5c3b1aec22d8393d3da72d025

Download Submit
memory/992-6-0x0000000000270000-0x0000000000298000-memory.dmp

Filesize
160KB

Download
memory/992-3-0x0000000000AB0000-0x0000000000AD8000-memory.dmp

Filesize
160KB

Download
memory/992-7-0x0000000000270000-0x0000000000298000-memory.dmp

Filesize
160KB

Download
memory/992-9-0x0000000000AB0000-0x0000000000AD8000-memory.dmp

Filesize
160KB

Download
memory/1636-8-0x0000000001030000-0x0000000001058000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads