4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662

Analysis

max time kernel
95s
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
19/09/2024, 04:41

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General

Target

4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe
Size

152KB
MD5

d9a3aebcdd8ced319c42c8dd8b7e8f50
SHA1

33f49ca35a9964ad5bf2cee6bb609d205138dbaf
SHA256

4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662
SHA512

90680f364133563178e892e53f1407bb2f50d2ddd4fce71e735e9566defc9b7872fceee2614098c4f516e718e907ff72f0553005b590b6ccbc3db9a8b0e276e9
SSDEEP

1536:rGYDPjecpE1gegznLU1V+FkOzvZoAUp8aHk+EfesrSd7IfHSp3D8DxNE1lMBV6yC:CCPjecmaxiViUp80s+sfHUzO0MBV6rx

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
572	navu32.exe

Executes dropped EXE 2 IoCs

pid	Process
572	navu32.exe
3720	navu32.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2000-0-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/files/0x0009000000023453-5.dat	upx
behavioral2/files/0x0009000000023453-10.dat	upx
behavioral2/memory/2000-13-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/572-14-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/3720-15-0x0000000000400000-0x0000000000427000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\navu32.exe	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe
File created	C:\Windows\SysWOW64\navu32.exe	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.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	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	navu32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3720	navu32.exe
3720	navu32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3720	navu32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 572	2000	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe	82
PID 2000 wrote to memory of 572	2000	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe	82
PID 2000 wrote to memory of 572	2000	4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe	82

C:\Users\Admin\AppData\Local\Temp\4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe
"C:\Users\Admin\AppData\Local\Temp\4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\navu32.exe
  C:\Windows\system32\navu32.exe -d "C:\Users\Admin\AppData\Local\Temp\4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662N.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:572

C:\Windows\SysWOW64\navu32.exe
C:\Windows\SysWOW64\navu32.exe -v
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\navu32.exe

Filesize
152KB

MD5
bce654e05ab8de8d06a6589406d5cca2

SHA1
91d60c1a2e3b96debbf4749ebd65bb5d04540a25

SHA256
bae354a1949a59ff2c136f70b8ee6f1cdf7ff821e336c3ac1627ab9a26b0230d

SHA512
abfa19f19ceade1be14e908eb6b0c72b3cbabfb22b2b68799c630d4d1e367e13cd7102c3ee569d83bacc3a9c200ce506b39e6fa2525648ba2f8e6ec73d495f90

Download Submit
C:\Windows\SysWOW64\navu32.exe

Filesize
152KB

MD5
d9a3aebcdd8ced319c42c8dd8b7e8f50

SHA1
33f49ca35a9964ad5bf2cee6bb609d205138dbaf

SHA256
4ce399192bd16eb31076b7a1111e26328fd41eb61f1d5990e97df82094329662

SHA512
90680f364133563178e892e53f1407bb2f50d2ddd4fce71e735e9566defc9b7872fceee2614098c4f516e718e907ff72f0553005b590b6ccbc3db9a8b0e276e9

Download Submit
memory/572-14-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2000-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2000-13-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/3720-15-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download