yunsip | f4c8cf438a86e55655c0d646048e12ffa719f1855d8ea608a0ed91819480825c

Analysis

max time kernel
131s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2024 13:45

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General

Target

139752081affd14b4eb87add1138bbfd_JaffaCakes118.dll
Size

262KB
MD5

139752081affd14b4eb87add1138bbfd
SHA1

cf2e2cff69adc736563a8425842e305aac455617
SHA256

f4c8cf438a86e55655c0d646048e12ffa719f1855d8ea608a0ed91819480825c
SHA512

abca41b2ffae5d000f362a795345c49921f3f86dbb3762ce0cb6f1016967cf1648a0923a90a160af54eee28f842231950a2c5bf025f846c60b767a26ea7b5e9d
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0L:jDgtfRQUHPw06MoV2nwTBlhm8z

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 3 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 5072	4768	rundll32.exe	89
PID 4768 wrote to memory of 5072	4768	rundll32.exe	89
PID 4768 wrote to memory of 5072	4768	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\139752081affd14b4eb87add1138bbfd_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\139752081affd14b4eb87add1138bbfd_JaffaCakes118.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5072

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4404,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
1⤵
PID:2072

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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