vanillarat | e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6

Analysis

max time kernel
88s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2023, 19:51

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe
Size 833KB
Sample230129-yk84csch8z
SHA256 e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6
MD5 3b8114eb401e105315f51f83768682b7
SHA1 ed98532391475e1775aac69be89b5de4a3ad43b6
SHA512 2c4e83c53203dfc470ef1cdacf4f2e74fc364e3bf54e04514fd42a09cf89df89fb74c3e107b74e89fb4e12389c19cf523f8783556bbbae642bce0cc43363e7c9
SSDEEP 24576:qHyaPeLrZ4b+kYWrdzM1hatTC+zC8OqGLvOtPi:ryyZYxDrdzgGzC0GLvOtP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vanillarat persistence rat

Malware Config

Signatures

VanillaRat
VanillaRat is an advanced remote administration tool coded in C#.
rat vanillarat

Vanilla Rat payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0003000000000737-135.dat	vanillarat

Executes dropped EXE 1 IoCs

pid	Process
4000	CERTUTIL.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\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce	e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 4000	2300	e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe	84
PID 2300 wrote to memory of 4000	2300	e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe	84

C:\Users\Admin\AppData\Local\Temp\e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe
"C:\Users\Admin\AppData\Local\Temp\e83d5f4f7ab9c233008f0da7f7b3074684928b68b26d5a1295710b8fe3acc1b6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CERTUTIL.exe
  CERTUTIL -DECODE basim.TXT basitesting.EXE
  2⤵
  - Executes dropped EXE
  PID:4000

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

Loading Replay Monitor...

Downloads

basim.TXT

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\basim.TXT
Size 148KB
SHA256 89ac63ecfc2d98e6da199359bab9da59bf7e6a74332d279680d7f21fa7bc723d
MD5 66562f0402f3e8853e537963a647f2b4
SHA1 6cfb80020e08419a9aad35b132e7a8332c42171f
SHA512 28cecccb6adeba4ba0db6a446baf5637c52b404142f7f6cb12cc693b9cdaf22aa123803a5fcd13fe71af2f19c93f2cc700ea4f28936b364176bf9c3161ed0acd
SSDEEP 3072:g0OEbS/uCZUUkXNN3F7Jj/zBZYsJMOu7Q4FQm9I71gTy5RdM4YBhf97e:g0O7/uCZUvNN3FJ/z9J3u7Q89dy5XwBW
MD5 SHA1 SHA512 SSDEEP

Submit Download

basitesting.EXE

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\basitesting.EXE
Size 108KB
SHA256 4b9a6a8d07e9cb0760f4ba4a7ecc8c98a2401de153a39a27a4f5c712bda53ae1
MD5 9709a03c66c676eec316864ee32210f4
SHA1 37bb492dddbefd79e7138a9e36e549919ea0da5b
SHA512 632346c1d9c950e469cd338816d6a405b8ee50f8a08f56c04fb831ddea06ccdfeec51120cfc9674f40957d874e07bc8eb07b73a92fc09805b3cb7fe191c8a1d5
SSDEEP 3072:PHqTUNHn91LtyTfBbjjPDXWHnvamb5HK:PHqTUpb09PDUnvL
MD5 SHA1 SHA512 SSDEEP

Submit Download

certutil.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\certutil.exe
Size 1.6MB
SHA256 8de7b4eb1301d6cbe4ea2c8d13b83280453eb64e3b3c80756bbd1560d65ca4d2
MD5 bd8d9943a9b1def98eb83e0fa48796c2
SHA1 70e89852f023ab7cde0173eda1208dbb580f1e4f
SHA512 95630fdddad5db60cc97ec76ee1ca02dbb00ee3de7d6957ecda8968570e067ab2a9df1cc07a3ce61161a994acbe8417c83661320b54d04609818009a82552f7b
SSDEEP 24576:aCaND6ankkViMCsJf0JhY+3hvwUJDP+t3HvDGKK1V3FuNM2GRUY/ejsSvVo2:aCiDLnPipbJ5vwES3CKGVVuNM20UXa2
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads