Analysis
- max time kernel
150s - max time network
154s - platform
windows7_x64 - resource
win7-20220715-en - resource tags
arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 04:39
Static task
static1
Behavioral task
behavioral1
Sample
2e1536b8e34deaf8e2b29421f2a9d4e8.dll
Resource
win7-20220715-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2e1536b8e34deaf8e2b29421f2a9d4e8.dll
Resource
win10v2004-20220718-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 2e1536b8e34deaf8e2b29421f2a9d4e8.dll
- Size 5.0MB
- Sample220720-e9yt5scdhn
- SHA256 430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9
- MD5 2e1536b8e34deaf8e2b29421f2a9d4e8
- SHA1 395224f180456a3cc9b27059f9114272bd1b49e8
- SHA512 3f0ea2306ab1c9fdcbc0cbed368e29646ca3900beafc0c15777763eb6ff2de31b1830890614156cfb29c29da7581682169aef38fa4d0d127f8fb187a5ffa6919
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1296) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 2 IoCs
pid Process 1792 mssecsvr.exe 2008 mssecsvr.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvr.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvr.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvr.exe - Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57}\WpadDecisionReason = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57}\WpadDecisionTime = 106589acf29bd801 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57}\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-ca-f2-73-12-17\WpadDecisionTime = 106589acf29bd801 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-ca-f2-73-12-17\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ed000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-ca-f2-73-12-17\WpadDecisionReason = "1" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57} mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57}\WpadNetworkName = "Network 3" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-ca-f2-73-12-17 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{14F760A4-F2AB-49D2-8D35-C3A9BF436D57}\8a-ca-f2-73-12-17 mssecsvr.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1744 wrote to memory of 1028 1744 rundll32.exe 27 PID 1028 wrote to memory of 1792 1028 rundll32.exe 28 PID 1028 wrote to memory of 1792 1028 rundll32.exe 28 PID 1028 wrote to memory of 1792 1028 rundll32.exe 28 PID 1028 wrote to memory of 1792 1028 rundll32.exe 28
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2e1536b8e34deaf8e2b29421f2a9d4e8.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2e1536b8e34deaf8e2b29421f2a9d4e8.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1028 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1792
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2008
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvr.exe
- Size 2.2MB
- SHA256 06c872f12f820784e4964946f967642bbc0f21c2e842c2058710ac843639f620
- MD5 97e868104e3797cfa871e38630db5c01
- SHA1 d979431387994d0b13b2274208168ec56efe07c4
- SHA512 393d6c62d7d7f71c41b0445aa36cc8850f6d868c4904191907b2c2ccf782f87269e68d2e0ef027922d7c600559db2edabdbb37c4ce1291ad6861f32c32e8abea
- SSDEEP 49152:QnsEMSPbcBVQej/1INRx+TSqTdX1HkQo6SAALdhnvn:QfPoBhz1aRxcSUDk36SAmdhvn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvr.exe
- Size 2.2MB
- SHA256 06c872f12f820784e4964946f967642bbc0f21c2e842c2058710ac843639f620
- MD5 97e868104e3797cfa871e38630db5c01
- SHA1 d979431387994d0b13b2274208168ec56efe07c4
- SHA512 393d6c62d7d7f71c41b0445aa36cc8850f6d868c4904191907b2c2ccf782f87269e68d2e0ef027922d7c600559db2edabdbb37c4ce1291ad6861f32c32e8abea
- SSDEEP 49152:QnsEMSPbcBVQej/1INRx+TSqTdX1HkQo6SAALdhnvn:QfPoBhz1aRxcSUDk36SAmdhvn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvr.exe
- Size 2.2MB
- SHA256 06c872f12f820784e4964946f967642bbc0f21c2e842c2058710ac843639f620
- MD5 97e868104e3797cfa871e38630db5c01
- SHA1 d979431387994d0b13b2274208168ec56efe07c4
- SHA512 393d6c62d7d7f71c41b0445aa36cc8850f6d868c4904191907b2c2ccf782f87269e68d2e0ef027922d7c600559db2edabdbb37c4ce1291ad6861f32c32e8abea
- SSDEEP 49152:QnsEMSPbcBVQej/1INRx+TSqTdX1HkQo6SAALdhnvn:QfPoBhz1aRxcSUDk36SAmdhvn
- MD5 SHA1 SHA512 SSDEEP