cb43fff6739186bdf2af5d4f34624c020196616cdae86fb755bf3d250bbe9b12

Resubmissions

19-01-2025 12:18

250119-pg3yhaxjbs 10

26-12-2024 21:28

241226-1bawba1mcj 10

25-12-2024 16:52

241225-vdh2tayphx 10

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 21:28

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Report Analysis Logs

General

Target

LB3.exe
Size

147KB
MD5

67008d6538e43ec4ef57359f7ca4f15f
SHA1

65078b6e640146bde300af0a6d70b91f45244343
SHA256

cb43fff6739186bdf2af5d4f34624c020196616cdae86fb755bf3d250bbe9b12
SHA512

9a9e281dcf6a783cb69f6ab9703af716dd304883ad1a92a17bf4498745b563b2560e4624d839cc7577776d31e22f596d821a183c4c4ec350d7fa7a8f0e44db54
SSDEEP

3072:V6glyuxE4GsUPnliByocWepTN5GqoLVB5FHONF:V6gDBGpvEByocWeX/oZB7u/

Score

10^/10

defense_evasion discovery ransomware spyware stealer

Malware Config

Extracted

Path

C:\IoBMyuygl.README.txt

Ransom Note

~~~ RdpLocker Recode the world's fastest ransomware~~~ >>>> Your data are stolen and encrypted >>>> Info Our encryption is undetectable and we can encrypt terabytes of data in minutes. A unique public and private key is generated exclusively for you. No one else can decrypt the files we have encrypted. Our services are cheap and reliable. >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters, or we do not delete your data after payment, then nobody will pay us in the future. Therefore to us our reputation is very important. We attack the companies worldwide and there is no dissatisfied victim after payment. You can contact us using Tox messenger without registration and SMS to negotiate the price. https://tox.chat/download.html Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. RdpLocker Tox ID: CE93C52BFAFA16570B9821C7D0EE7999C78475AD964ACEEF80767B653210D27E3CE6C88F61A5

URLs

https://tox.chat/download.html

Signatures

Renames multiple (313) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Deletes itself 1 IoCs

pid	Process
2392	5EE2.tmp

Executes dropped EXE 1 IoCs

pid	Process
2392	5EE2.tmp

Loads dropped DLL 1 IoCs

pid	Process
2772	LB3.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\$Recycle.Bin\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini	LB3.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini	LB3.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\IoBMyuygl.bmp"	LB3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\IoBMyuygl.bmp"	LB3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2392	5EE2.tmp

System Location Discovery: System Language Discovery 1 TTPs 3 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	LB3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5EE2.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop	LB3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\WallpaperStyle = "10"	LB3.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IoBMyuygl\DefaultIcon\ = "C:\\ProgramData\\IoBMyuygl.ico"	LB3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.IoBMyuygl	LB3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.IoBMyuygl\ = "IoBMyuygl"	LB3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IoBMyuygl\DefaultIcon	LB3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IoBMyuygl	LB3.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe
2772	LB3.exe

Suspicious behavior: RenamesItself 26 IoCs

pid	Process
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp
2392	5EE2.tmp

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeAssignPrimaryTokenPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeDebugPrivilege	2772	LB3.exe
Token: 36	2772	LB3.exe
Token: SeImpersonatePrivilege	2772	LB3.exe
Token: SeIncBasePriorityPrivilege	2772	LB3.exe
Token: SeIncreaseQuotaPrivilege	2772	LB3.exe
Token: 33	2772	LB3.exe
Token: SeManageVolumePrivilege	2772	LB3.exe
Token: SeProfSingleProcessPrivilege	2772	LB3.exe
Token: SeRestorePrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSystemProfilePrivilege	2772	LB3.exe
Token: SeTakeOwnershipPrivilege	2772	LB3.exe
Token: SeShutdownPrivilege	2772	LB3.exe
Token: SeDebugPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeBackupPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe
Token: SeSecurityPrivilege	2772	LB3.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2392	2772	LB3.exe	32
PID 2772 wrote to memory of 2392	2772	LB3.exe	32
PID 2772 wrote to memory of 2392	2772	LB3.exe	32
PID 2772 wrote to memory of 2392	2772	LB3.exe	32
PID 2772 wrote to memory of 2392	2772	LB3.exe	32
PID 2392 wrote to memory of 1908	2392	5EE2.tmp	33
PID 2392 wrote to memory of 1908	2392	5EE2.tmp	33
PID 2392 wrote to memory of 1908	2392	5EE2.tmp	33
PID 2392 wrote to memory of 1908	2392	5EE2.tmp	33

C:\Users\Admin\AppData\Local\Temp\LB3.exe
"C:\Users\Admin\AppData\Local\Temp\LB3.exe"
1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772
- C:\ProgramData\5EE2.tmp
  "C:\ProgramData\5EE2.tmp"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\5EE2.tmp >> NUL
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1908

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x150
1⤵
PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-3692679935-4019334568-335155002-1000\AAAAAAAAAAA

Filesize
129B

MD5
5372f912317b820f14c909e48f838c28

SHA1
a2dddc844abcebb29fd4f7895903946995d2e4ca

SHA256
782fb66c165f27a6c9f223c455e24febe872ad1d28b51c576339762654eec79a

SHA512
cd5ddf0f3c79ce725c3500a7bb4d5f146252307c53d29aaca68319b4f709aadd5cf5d15f45f3145b8db77497e1691b4e43ac9ad3abcbcb64214648f34f326f3a

Download Submit
C:\IoBMyuygl.README.txt

Filesize
1KB

MD5
0fc102c3422c21c1aadfaa1a656dc970

SHA1
49cc540c7a5eaa4f12cacdb21e788335d535ccc0

SHA256
fe49a063ebe0b4154321062c1110876bab03710ab367d8a5e3dee6e75fc79029

SHA512
8cf822ec2d69b4f4bfdc3303b142ff21315d6e5483a98efa834d039f68a6f57e249d374d3c127a65f524123464532afa5700b4dd4808236b082f7a420a260ab0

Download Submit
C:\Users\Admin\AppData\Local\Temp\DDDDDDD

Filesize
147KB

MD5
69861602329521c88ea278140d23959c

SHA1
96d9dbbd982d2d12d43c511922d9679b40e8d2a8

SHA256
ad35fbdd3d8182656cfc83207c5ac345da90454970711e2df02502f4a6e8300a

SHA512
c70b07823d01c8e331ec3e82ce026aab904672debbeae416538f4b8a557ceef4adf27fefd38a417d2d5ddaefc0be776bb46919c1d30cf1c6c4a8f49003b1e7f1

Download Submit
F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\DDDDDDDDDDD

Filesize
129B

MD5
f704ca1c70d66587a6dbc39f3cfcf3cc

SHA1
022eaa162a47ea696322bbf49e52ad44ed5ef5ed

SHA256
854e0519133127015346265af079dcd861bed70844d5d1b365c0c50745e8407f

SHA512
011586bc9e3ea9ec6042400d9eca9f374c0e1e6cf054fe504f3cf61b194ee38c90f10672b747ded9e4d9ecd2d96f295812711edaba31f32d19f0094c879ee9b1

Download Submit
\ProgramData\5EE2.tmp

Filesize
14KB

MD5
294e9f64cb1642dd89229fff0592856b

SHA1
97b148c27f3da29ba7b18d6aee8a0db9102f47c9

SHA256
917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

SHA512
b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

Download Submit
memory/2392-841-0x0000000002250000-0x0000000002290000-memory.dmp

Filesize
256KB

Download
memory/2392-844-0x000000007EF20000-0x000000007EF21000-memory.dmp

Filesize
4KB

Download
memory/2392-843-0x000000007EF80000-0x000000007EF81000-memory.dmp

Filesize
4KB

Download
memory/2392-842-0x0000000002250000-0x0000000002290000-memory.dmp

Filesize
256KB

Download
memory/2392-840-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

Filesize
4KB

Download
memory/2392-874-0x000000007EF60000-0x000000007EF61000-memory.dmp

Filesize
4KB

Download
memory/2392-873-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/2772-0-0x0000000002190000-0x00000000021D0000-memory.dmp

Filesize
256KB

Download
memory/2772-1-0x0000000002190000-0x00000000021D0000-memory.dmp

Filesize
256KB

Download