bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9

General

Target

bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
Size

351KB
MD5

37f5f56f232203bb60b0036b94c3dc85
SHA1

39ec98058f108aa884d76b718e800091a2e9438c
SHA256

bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9
SHA512

8e9a19e02cd25cec1a4eebb30840fea09f49602bd6fa8cf3e2711dbf64736da43e341ae07cc2367892eac9b5e2e12a77f7ae95a7346c18c6910035fafe56e7ca
SSDEEP

6144:Z3c4cg0RO2MTBtGIPaK8KKNYC5RaAcF3FPj5DoXF93pqrQ:ZiBTM98yaKWYCqA6FPj5EXT4Q

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
824	lBkDyW175o.exe
1824	lBkDyW175o.exe

Deletes itself 1 IoCs

pid	Process
1824	lBkDyW175o.exe

Loads dropped DLL 4 IoCs

pid	Process
1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
1824	lBkDyW175o.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\nMa7gnewLbOWkI = "C:\\ProgramData\\PtwU4DW7t2Q7H9Py\\lBkDyW175o.exe"	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1464 set thread context of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 824 set thread context of 1824	824	lBkDyW175o.exe	28
PID 1824 set thread context of 864	1824	lBkDyW175o.exe	29

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1464 wrote to memory of 1692	1464	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	26
PID 1692 wrote to memory of 824	1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	27
PID 1692 wrote to memory of 824	1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	27
PID 1692 wrote to memory of 824	1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	27
PID 1692 wrote to memory of 824	1692	bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe	27
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 824 wrote to memory of 1824	824	lBkDyW175o.exe	28
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29
PID 1824 wrote to memory of 864	1824	lBkDyW175o.exe	29

C:\Users\Admin\AppData\Local\Temp\bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
"C:\Users\Admin\AppData\Local\Temp\bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Users\Admin\AppData\Local\Temp\bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe
  "C:\Users\Admin\AppData\Local\Temp\bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe
    "C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:824
  - - C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe
      "C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe"
      4⤵
      Executes dropped EXE
      Deletes itself
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1824
    - - C:\Program Files (x86)\Google\Update\1.3.36.71\GoogleUpdateBroker.exe
        
        "C:\Program Files (x86)\Google\Update\1.3.36.71\GoogleUpdateBroker.exe" /i:1824
        5⤵
        
        PID:864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
C:\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
\ProgramData\PtwU4DW7t2Q7H9Py\lBkDyW175o.exe

Filesize
351KB

MD5
37f5f56f232203bb60b0036b94c3dc85

SHA1
39ec98058f108aa884d76b718e800091a2e9438c

SHA256
bf47a3b1e9fb90a8ccf05644185f319a034c04a9d3b0b52a21a45ca7bd0d1bc9

SHA512
8e9a19e02cd25cec1a4eebb30840fea09f49602bd6fa8cf3e2711dbf64736da43e341ae07cc2367892eac9b5e2e12a77f7ae95a7346c18c6910035fafe56e7ca

Download Submit
\Users\Admin\AppData\Local\Temp\gMO9jbw92XC.exe

Filesize
351KB

MD5
fac8210e33fc49e93af00aad0833c6d6

SHA1
fa89c869149d43775d5a4f450cd147de1c6da3ac

SHA256
6f98c666a4d51a1fc2019d02b0ac7de4e11b3c36f1b74c15a0cc3bafa2137531

SHA512
8f1a90a01118586752fb24fa54096f1172524e884d8db37653cafe77c1c15354354b4c68083cd15c15714a4db0bd5001a49cc2a1d7b2b0a76f909df96e5cecf6

Download Submit
memory/864-83-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/864-84-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1692-59-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1692-65-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1692-58-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1692-54-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1692-56-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1824-82-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1824-75-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download

Analysis

Sharing