9404c7a99bcdde02f50e378d1dffad170426af7c1c5c545b2f6fd57de48ffad5

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 20:32

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General

Target

malware/vbc.exe
Size

231KB
MD5

72b2e84c1aec86b5c955ff098d7fd8b7
SHA1

20f9c563206eff907cfad0723988de58872bc93e
SHA256

1b26f49cdc29c81ea4d8f5571349e835662bca7881608dce0d13e86798dd9ac4
SHA512

e5d062f0b105332ffa06f3e13c5ecc0dd66fc58bb631f31bd85b4a60f138ff2e127550eec6dbd47cb644ea2def1aa1fcb473a4db2c36752946798998e2adadaa
SSDEEP

6144:HNeZmGsX4gDALdTQQNUofXRkvlNEH/T2UfL:HNlGsXP0+QNUoINeq6

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4132	rywcikv.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1856	4132	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rywcikv.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 4132	5060	vbc.exe	83
PID 5060 wrote to memory of 4132	5060	vbc.exe	83
PID 5060 wrote to memory of 4132	5060	vbc.exe	83
PID 4132 wrote to memory of 2132	4132	rywcikv.exe	84
PID 4132 wrote to memory of 2132	4132	rywcikv.exe	84
PID 4132 wrote to memory of 2132	4132	rywcikv.exe	84

C:\Users\Admin\AppData\Local\Temp\malware\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\malware\vbc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Local\Temp\rywcikv.exe
  C:\Users\Admin\AppData\Local\Temp\rywcikv.exe C:\Users\Admin\AppData\Local\Temp\tmogtpc
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4132
- - C:\Users\Admin\AppData\Local\Temp\rywcikv.exe
    C:\Users\Admin\AppData\Local\Temp\rywcikv.exe C:\Users\Admin\AppData\Local\Temp\tmogtpc
    3⤵
    PID:2132
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 528
    3⤵
    - Program crash
    PID:1856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4132 -ip 4132
1⤵
PID:2324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hcwh42mnqly0g

Filesize
211KB

MD5
21f599b33d9f3a8ca3d08426d239734e

SHA1
5f210888f57e03d5b888487b3b8e0317c8d0541d

SHA256
3e9b6fdc2ef03d3ce4153f7afbb72ecec4ff6d7d0a01f2953b0288e479421adf

SHA512
24cc265cceb2ea7bd40c9be85fb788b4a3b5bf5300fc6507aac00097124c574ba2afb028f0485312575a92f3de70c25abeac4f879f833201997b1382ce3177ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\rywcikv.exe

Filesize
4KB

MD5
1c8099bf75f0b18987ddfdde63e52d60

SHA1
d613404fd561ed3bcb44d1d9e949dc08bb7950ca

SHA256
d16719d16c1da558db23766d79a44613e3ca6519d2fc81a167b62d8e39ede0e3

SHA512
7bd7df1775ad0cf9d6be44019104ddde47180da262aabb1c900aa36727c73343c9f33a0e72f5bd119dba4f9937117faac47d0d2dddf1876da1ffb0f4136623c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmogtpc

Filesize
4KB

MD5
a21c8cb7478d2c976f0e54115bcabad4

SHA1
e7474a6503e7d6720745264585ec2211d6ea0971

SHA256
9da18fd1aec201c5ea38fb6bccd95dfd0067b62703b002f00442edcd800e6c10

SHA512
0dd849ca1233fb31cbbb8c3ebcca56be9f37b74fe5af1a83bb2b33cf45d62adcee23e9caed0231b30da5e868d35395e2b399697404c9ddb06371e5ba9f2467f2

Download Submit
memory/4132-8-0x00000000004A0000-0x00000000004A2000-memory.dmp

Filesize
8KB

Download