mylobot | 8f460857b46f1247edac09f59cc4b1535138ef2d4c191f3c923c93c3833fa46d

Analysis

max time kernel
148s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
03/04/2025, 11:47

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General

Target

2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe
Size

784KB
MD5

e4fe1cda1b965c4200e53953007721a6
SHA1

e47cc08535efa0e3b38a518c44f827389699c6c9
SHA256

8f460857b46f1247edac09f59cc4b1535138ef2d4c191f3c923c93c3833fa46d
SHA512

26b783b145d1b300c37d12e39a037150ee5f29921344e90be154a73459f77badd6962a8c5701589160a714e01a59807efc04d97d1843de3e9402f031e604b6d0
SSDEEP

24576:S1818EiYTmpVJUOZ1818EiYTmpVJUOZ1L:bTmpVJUOyTmpVJUOP

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
2560	upeufauu.exe
3952	upeufauu.exe
1532	upeufauu.exe
4052	upeufauu.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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gepap = "C:\\Users\\Admin\\AppData\\Roaming\\fauyhusf\\upeufauu.exe"	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5988 set thread context of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 2560 set thread context of 3952	2560	upeufauu.exe	98
PID 1532 set thread context of 4052	1532	upeufauu.exe	107

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	upeufauu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	upeufauu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	upeufauu.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 5988 wrote to memory of 2180	5988	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	95
PID 2180 wrote to memory of 2560	2180	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	96
PID 2180 wrote to memory of 2560	2180	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	96
PID 2180 wrote to memory of 2560	2180	2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe	96
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 2560 wrote to memory of 3952	2560	upeufauu.exe	98
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 3952 wrote to memory of 5748	3952	upeufauu.exe	99
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5440 wrote to memory of 1532	5440	cmd.exe	104
PID 5440 wrote to memory of 1532	5440	cmd.exe	104
PID 5440 wrote to memory of 1532	5440	cmd.exe	104
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 5748 wrote to memory of 3748	5748	cmd.exe	101
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107
PID 1532 wrote to memory of 4052	1532	upeufauu.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5988
- C:\Users\Admin\AppData\Local\Temp\2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe
  "C:\Users\Admin\AppData\Local\Temp\2025-04-03_e4fe1cda1b965c4200e53953007721a6_black-basta_cobalt-strike_luca-stealer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
    "C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2560
  - - C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
      "C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3952
    - - 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:5748
      - C:\Windows\SysWOW64\notepad.exe
        
        "C:\Windows\system32\notepad.exe"
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:3748

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:5440
- C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
  C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
    C:\Users\Admin\AppData\Roaming\fauyhusf\upeufauu.exe
    3⤵
    - Executes dropped EXE
    PID:4052

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\fauyhusf\upeufauu.exe

Filesize
784KB

MD5
e4fe1cda1b965c4200e53953007721a6

SHA1
e47cc08535efa0e3b38a518c44f827389699c6c9

SHA256
8f460857b46f1247edac09f59cc4b1535138ef2d4c191f3c923c93c3833fa46d

SHA512
26b783b145d1b300c37d12e39a037150ee5f29921344e90be154a73459f77badd6962a8c5701589160a714e01a59807efc04d97d1843de3e9402f031e604b6d0

Download Submit
memory/2180-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2180-3-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2180-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2180-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2560-35-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2560-13-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3748-52-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/3748-48-0x0000000004960000-0x0000000004961000-memory.dmp

Filesize
4KB

Download
memory/3952-18-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/5748-21-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/5748-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-28-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/5748-29-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-33-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-32-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-24-0x0000000000C50000-0x0000000000C51000-memory.dmp

Filesize
4KB

Download
memory/5748-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5748-22-0x0000000000B30000-0x0000000000B38000-memory.dmp

Filesize
32KB

Download
memory/5748-19-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/5748-20-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/5748-59-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/5988-0-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads