ca5cdb12d7446accecbcf99edc804f3b538cb96f0bedf407415cc5aaba7bb165

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 13:11

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General

Target

$TEMP/KuaiWan_Update/KuaiwanUpdate.exe
Size

70KB
MD5

8b2fb19cfb18197fb55b3f21d58f2edb
SHA1

2af21e2d58e67075df24736789104a057692e1e8
SHA256

0787371e1a258899470a7d547d26e2856444e7e9158d8c96d65613145ffb80f4
SHA512

9c7c456597d67c90ca8aea5b6f4f807e386dd5dc5da34c84a1a6a64c33f11d81f32407d74ecc78315165c5c36a66b6f264f44f19abad4a7446a648bd3288696e
SSDEEP

1536:IZFwlrRfoowfoMTIxpIplqu4VGPJB6phruR/DZhbDfO9alVZ/afC2:IZGlFw7fonu4sPJB098/DjxT49

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 15 IoCs

pid	Process
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe
2172	KuaiwanUpdate.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	KuaiwanUpdate.exe

C:\Users\Admin\AppData\Local\Temp\$TEMP\KuaiWan_Update\KuaiwanUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\KuaiWan_Update\KuaiwanUpdate.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

\Users\Admin\AppData\Local\Temp\nst9501.tmp\Base64.dll

Filesize
32KB

MD5
fb6ffa30b708e9413d71a2c95558d0f1

SHA1
a4a67a7b6c53e47f9a741e06c701e03382dc548f

SHA256
3ae1c3fbf851e0de9865191b00b5fc26be32eb4f2ccb81b47e1488c2805402ae

SHA512
b1e4e9e263add6c6d9f7309d739375725f7c4afd645caebea903f7b8963c0ac8d2728dee3edd999f8496b100ba8bd5fd7e5c3c4c17ca0bbcd24923c0cb270415

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\Users\Admin\AppData\Local\Temp\nst9501.tmp\System.dll

Filesize
10KB

MD5
4eff5fafd746f5decb93a44e3a3d570c

SHA1
a11aa7681b7e2df1c7f7492a127d332d1495ea8a

SHA256
cf61ddd15d63c25a12caee70f51ea736cfc02195c42e56ee01b33f689d3754c5

SHA512
cde82d2a1f28506e4c2264f6b82017a00af32f138ebcdbaf4cc58463870fa626f708aa57465294c5a6f096c886841e7b9112b85bf3ea2f1d8f2da816b51b2d72

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\Users\Admin\AppData\Local\Temp\nst9501.tmp\inetc.dll

Filesize
18KB

MD5
94a8ace2be90a687c1b1729c32c66e50

SHA1
94cff89cc170c00b1f849460f78cb12ab8730538

SHA256
1a6c160fd844dea35195371476119f91eab302d701b0f6f1c3fe87ad92cc93df

SHA512
ba23dfa7a29450451ac3f6ef6bf9e89352e1d17f7a2b7c7e5a87839becd6676542d2189d443322b3cad08b1bcac8851eebf9964fa37190e551f0bd717dcc5deb

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