yunsip | 3aee43e3ac120503917731731a77b675a0761c49ebbc03ff7d4ff91b3c33efcc

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 23:00

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General

Target

3aee43e3ac120503917731731a77b675a0761c49ebbc03ff7d4ff91b3c33efcc.dll
Size

1.2MB
MD5

8399d51d121d448b8abf7c35e48fce0f
SHA1

2ac652f519ae716d1287b56f32900b16feafabb2
SHA256

3aee43e3ac120503917731731a77b675a0761c49ebbc03ff7d4ff91b3c33efcc
SHA512

da179217e3ee30f08e891452f2ccd75a586f3466e3f699c0024880a4e2dea6c08bd16a15288530f30203a2e724365442f0624e60009b7c5610ca8c89d14c1079
SSDEEP

6144:jDgtfRQUHPw06MoV2nwTBlhm8zDgtfRQUHPw06MoV2nwTBlhm8y:jDgN6MoIwT3vDgN6MoIwT3e

Score

10^/10

yunsip banker discovery trojan

Malware Config

Signatures

Yunsip
Remote backdoor which communicates with a C2 server to receive commands.
trojan banker yunsip
Yunsip family
yunsip

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30
PID 2596 wrote to memory of 2216	2596	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3aee43e3ac120503917731731a77b675a0761c49ebbc03ff7d4ff91b3c33efcc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3aee43e3ac120503917731731a77b675a0761c49ebbc03ff7d4ff91b3c33efcc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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