yunsip | 84a978f938ccb1c03d96179cb74afd4ed7f240971f5746891376419aa5f928df

Analysis

max time kernel
118s
max time network
125s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 10:19

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General

Target

867552f6d2c9e44ba0874427f20a5ee0N.dll
Size

1.0MB
MD5

867552f6d2c9e44ba0874427f20a5ee0
SHA1

e61244065ef6b2ebbfb5d884ea75ecb461b49fcc
SHA256

84a978f938ccb1c03d96179cb74afd4ed7f240971f5746891376419aa5f928df
SHA512

f2808ef8ddee1aec0cdacec83d81cb1ef7e030293d1396fa6657f82dcb74fbc1c8fe7ad41521ae85cb06d2775fb58ffce9c2fe9f6b2119d293c2a7d02ac593bc
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY6:o6RI1Fo/wT3cJYYYYYYYYYYYY6

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

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 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30
PID 2692 wrote to memory of 2736	2692	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\867552f6d2c9e44ba0874427f20a5ee0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\867552f6d2c9e44ba0874427f20a5ee0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736

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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