yunsip | 84681deaad87b511feb0cf759c2b6f3bcb7a9e0b1d2d3767c2a49be64ff2a91e

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05-11-2023 02:36

Target

NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll
Size

785KB
MD5

72187e83fd3d345b8d04be684e536b10
SHA1

a866f734d27499614a3b1453bd0c589b25c45814
SHA256

84681deaad87b511feb0cf759c2b6f3bcb7a9e0b1d2d3767c2a49be64ff2a91e
SHA512

2a589ebf7c7c352f8e34ce3609c504dd84aacba72842c3ce8435fe49bb66cfbedb952328d6489359014d56f9d964a185bfd494771babcf66c1375a6410f0775c
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q00:jDgtfRQUHPw06MoV2nwTBlhm88

Score

10^/10

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28
PID 2248 wrote to memory of 2624	2248	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.72187e83fd3d345b8d04be684e536b10_JC.dll,#1
  2⤵
  PID:2624