mylobot | d50f7ead9e1d87a6b2f0812996bc8e4e9b1524b35324b75eeba9616cfc782b91

Analysis

max time kernel
149s
max time network
147s
platform
windows11-21h2_x64
resource
win11-20250313-en
resource tags

arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system
submitted
27/03/2025, 14:49

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General

Target

rid.gif.exe
Size

367KB
MD5

871e489e879885db39c583b5cd90bc30
SHA1

19897738a379bfce7f1a19be11885f2334acadd8
SHA256

d50f7ead9e1d87a6b2f0812996bc8e4e9b1524b35324b75eeba9616cfc782b91
SHA512

b3a965841b33c55f0ab6d41a459eeeb66a29fd3b114bc82ccf953d0c459858755c97970152e346e794c2674a9cf9bd219014ecf344f3ce4ee2cfe9a2c4572fd3
SSDEEP

6144:aPeWTE1rkt826L4xd1EiftWt6empEVZlVISrt5AuK+FqktodbFQy+:aPbTE1rkt826L4xd1EiEt6empQ+uK+U8

Score

10^/10

mylobot botnet discovery persistence

Malware Config

Extracted

Family

mylobot

onthestage.ru:6521

krebson.ru:4685

stanislasarnoud.ru:5739

Signatures

Mylobot
Botnet which first appeared in 2017 written in C++.
botnet mylobot
Mylobot family
mylobot

Executes dropped EXE 4 IoCs

pid	Process
3836	ucxurxup.exe
2828	ucxurxup.exe
4964	ucxurxup.exe
3340	ucxurxup.exe

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\USER\S-1-5-21-2081498128-3109241912-2948996266-1000\Software\Microsoft\Windows\CurrentVersion\Run\rcgjq = "C:\\Users\\Admin\\AppData\\Roaming\\rpubrugd\\ucxurxup.exe"	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5256 set thread context of 4108	5256	rid.gif.exe	81
PID 3836 set thread context of 2828	3836	ucxurxup.exe	83
PID 4964 set thread context of 3340	4964	ucxurxup.exe	90

System Location Discovery: System Language Discovery 1 TTPs 7 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	ucxurxup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rid.gif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rid.gif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ucxurxup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ucxurxup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 5256 wrote to memory of 4108	5256	rid.gif.exe	81
PID 4108 wrote to memory of 3836	4108	rid.gif.exe	82
PID 4108 wrote to memory of 3836	4108	rid.gif.exe	82
PID 4108 wrote to memory of 3836	4108	rid.gif.exe	82
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 3836 wrote to memory of 2828	3836	ucxurxup.exe	83
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2828 wrote to memory of 2532	2828	ucxurxup.exe	84
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 1668 wrote to memory of 4964	1668	cmd.exe	89
PID 1668 wrote to memory of 4964	1668	cmd.exe	89
PID 1668 wrote to memory of 4964	1668	cmd.exe	89
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 2532 wrote to memory of 4412	2532	cmd.exe	86
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90
PID 4964 wrote to memory of 3340	4964	ucxurxup.exe	90

C:\Users\Admin\AppData\Local\Temp\rid.gif.exe
"C:\Users\Admin\AppData\Local\Temp\rid.gif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5256
- C:\Users\Admin\AppData\Local\Temp\rid.gif.exe
  "C:\Users\Admin\AppData\Local\Temp\rid.gif.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4108
- - C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
    "C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3836
  - - C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
      "C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2828
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2532
      - C:\Windows\SysWOW64\notepad.exe
        
        ㊈ū嘸ūWindows\system32\notepad.exe"
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4412

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
  C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4964
- - C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
    C:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe
    3⤵
    - Executes dropped EXE
    PID:3340

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:\Users\Admin\AppData\Roaming\rpubrugd\ucxurxup.exe

Filesize
367KB

MD5
871e489e879885db39c583b5cd90bc30

SHA1
19897738a379bfce7f1a19be11885f2334acadd8

SHA256
d50f7ead9e1d87a6b2f0812996bc8e4e9b1524b35324b75eeba9616cfc782b91

SHA512
b3a965841b33c55f0ab6d41a459eeeb66a29fd3b114bc82ccf953d0c459858755c97970152e346e794c2674a9cf9bd219014ecf344f3ce4ee2cfe9a2c4572fd3

Download Submit
memory/2532-23-0x00000000014A0000-0x00000000014A1000-memory.dmp

Filesize
4KB

Download
memory/2532-28-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-35-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-19-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/2532-18-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/2532-20-0x0000000001490000-0x0000000001498000-memory.dmp

Filesize
32KB

Download
memory/2532-27-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/2532-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2532-21-0x0000000001490000-0x0000000001498000-memory.dmp

Filesize
32KB

Download
memory/2532-32-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3836-13-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3836-34-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4108-3-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4108-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4108-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4108-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4412-51-0x0000000001100000-0x0000000001101000-memory.dmp

Filesize
4KB

Download
memory/4412-47-0x0000000004630000-0x0000000004631000-memory.dmp

Filesize
4KB

Download
memory/5256-0-0x00000000027F0000-0x00000000027F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads