mylobot | f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
27-06-2023 02:05

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General

Target

f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe
Size

176KB
MD5

d9eddda7d5612d8d06f776ad3a7b02d8
SHA1

6668d5182ead5ae508ad9b88315ad5c05ead300f
SHA256

f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57
SHA512

01f35c458b8a5c6e3fbc81650877a328142875eac9200404c426c2e7419b2e5cae0ad70591e3ee615902cba9587aac7c7aebeb4d6edbd258c0f631ff525f7e07
SSDEEP

3072:kf5xz1afMRJnVIQJWafmU+qMoDfHHZOSHq8VNb/wddl1Udze1Wigr+:6hrRJnVPfj1MUfZhHq++nUdze4igi

Score

10^/10

mylobot botnet persistence

Malware Config

Extracted

Family

mylobot

fywkuzp.ru:7432

zdrussle.ru:2173

pseyumd.ru:5492

stydodo.ru:2619

tqzknrx.com:1123

mdcqrxw.com:4984

tpwtgyw.com:9631

cnoyucn.com:9426

qhloury.com:4759

fnjxpwy.com:3863

csxpzlz.com:5778

wlkjopy.com:8778

mynfwwk.com:8427

uuitwxg.com:6656

agnxomu.com:8881

wcagsib.com:3547

fmniltb.com:9582

oapwxiu.com:3922

petrrry.com:7531

poubauo.com:4623

Signatures

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

Executes dropped EXE 2 IoCs

Processes:

vvivravi.exevvivravi.exe

pid	Process
4340	vvivravi.exe
2396	vvivravi.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Windows\CurrentVersion\Run	cmd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cocas = "C:\\Users\\Admin\\AppData\\Roaming\\gcvbcvrc\\vvivravi.exe딀"	cmd.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exevvivravi.exe

description	pid	Process	procid_target
PID 2296 set thread context of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 4340 set thread context of 2396	4340	vvivravi.exe	86

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exef391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exevvivravi.exevvivravi.execmd.exe

description	pid	Process	procid_target
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 2296 wrote to memory of 916	2296	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	84
PID 916 wrote to memory of 4340	916	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	85
PID 916 wrote to memory of 4340	916	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	85
PID 916 wrote to memory of 4340	916	f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe	85
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 4340 wrote to memory of 2396	4340	vvivravi.exe	86
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2396 wrote to memory of 2368	2396	vvivravi.exe	87
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89
PID 2368 wrote to memory of 3872	2368	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe
"C:\Users\Admin\AppData\Local\Temp\f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe
  "C:\Users\Admin\AppData\Local\Temp\f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:916
- - C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe
    "C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4340
  - - C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe
      "C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2396
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe"
        5⤵
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:2368
      - C:\Windows\SysWOW64\notepad.exe
        
        "C:\Windows\system32\notepad.exe"
        6⤵
        
        PID:3872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe

Filesize
176KB

MD5
d9eddda7d5612d8d06f776ad3a7b02d8

SHA1
6668d5182ead5ae508ad9b88315ad5c05ead300f

SHA256
f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57

SHA512
01f35c458b8a5c6e3fbc81650877a328142875eac9200404c426c2e7419b2e5cae0ad70591e3ee615902cba9587aac7c7aebeb4d6edbd258c0f631ff525f7e07

Download Submit
C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe

Filesize
176KB

MD5
d9eddda7d5612d8d06f776ad3a7b02d8

SHA1
6668d5182ead5ae508ad9b88315ad5c05ead300f

SHA256
f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57

SHA512
01f35c458b8a5c6e3fbc81650877a328142875eac9200404c426c2e7419b2e5cae0ad70591e3ee615902cba9587aac7c7aebeb4d6edbd258c0f631ff525f7e07

Download Submit
C:\Users\Admin\AppData\Roaming\gcvbcvrc\vvivravi.exe

Filesize
176KB

MD5
d9eddda7d5612d8d06f776ad3a7b02d8

SHA1
6668d5182ead5ae508ad9b88315ad5c05ead300f

SHA256
f391d08d54d780a6bd967810caf3d649d1dd538db9232ebd3c4a20ea74476b57

SHA512
01f35c458b8a5c6e3fbc81650877a328142875eac9200404c426c2e7419b2e5cae0ad70591e3ee615902cba9587aac7c7aebeb4d6edbd258c0f631ff525f7e07

Download Submit
memory/916-134-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/916-136-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/916-142-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/916-144-0x00000000005E0000-0x00000000005F6000-memory.dmp

Filesize
88KB

Download
memory/2296-133-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2368-154-0x0000000000D80000-0x0000000000D81000-memory.dmp

Filesize
4KB

Download
memory/2368-165-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-151-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/2368-152-0x0000000000D60000-0x0000000000D75000-memory.dmp

Filesize
84KB

Download
memory/2368-149-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/2368-158-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/2368-159-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-162-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-184-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-150-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/2368-166-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-170-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2368-172-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2396-163-0x0000000000540000-0x0000000000556000-memory.dmp

Filesize
88KB

Download
memory/3872-177-0x00000000045E0000-0x00000000045E1000-memory.dmp

Filesize
4KB

Download
memory/3872-181-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/3872-183-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download