97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1

Analysis

max time kernel
151s
max time network
64s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-11-2022 04:51

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General

Target

97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
Size

91KB
MD5

ea03c86beddd63fc65795178d33df9c3
SHA1

14eb5fcbc306b5106e9f75fe0a1f5c84528a8a4a
SHA256

97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1
SHA512

a8f5ab4eba1d5e060ca1d6aa1999676e7c348a81f57d8309d6ad247552c9c19efe9dbcc38ba0a87a86b2fff395c74e48f2165860f70f68becb74e3b60705705e
SSDEEP

1536:4xOawsp8Ga0fIi/zNbTFTex+1Tjc6F/hpnqRa7CI:4Rp8cHNF+MPcMnnpT

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	1580	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
992	laass.exe

Sets DLL path for service in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\AppMgmt\Parameters\ServiceDll = "C:\\Progra~1\\%Program Files%\\QQ2O10.lnk"	laass.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\AppMgmt\Parameters\ServiceDll = "C:\\Progra~1\\%Program Files%\\QQ2O10.lnk"	rundll32.exe

Loads dropped DLL 4 IoCs

pid	Process
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
992	laass.exe
1580	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "file:c:\\windows\\362.VBS"	laass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "file:c:\\windows\\362.VBS"	rundll32.exe

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\%Program Files%	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\Progra~1\%Program Files%\laass.exe	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\Progra~1\%Program Files%\363.VBS	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\Progra~1\%Program Files%\Cest.bat	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\Progra~1\%Program Files%\~	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\Progra~1\%Program Files%\QQ2O10.lnk	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File opened for modification	C:\Progra~1\%Program Files%\QQ2O10.lnk	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\windows\best.bat	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
File created	C:\windows\362.vbs	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
992	laass.exe
992	laass.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe
1580	rundll32.exe
992	laass.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
992	laass.exe
1580	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 992	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	28
PID 1652 wrote to memory of 992	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	28
PID 1652 wrote to memory of 992	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	28
PID 1652 wrote to memory of 992	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	28
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1580	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	29
PID 1652 wrote to memory of 1672	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	30
PID 1652 wrote to memory of 1672	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	30
PID 1652 wrote to memory of 1672	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	30
PID 1652 wrote to memory of 1672	1652	97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe	30

C:\Users\Admin\AppData\Local\Temp\97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe
"C:\Users\Admin\AppData\Local\Temp\97fe8f5edf161a026720214998f095ab564871f43a75ef70d4963d6c8147dca1.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Program Files\%Program Files%\laass.exe
  "C:\Program Files\%Program Files%\laass.exe" QQ2O10.lnk main
  2⤵
  - Executes dropped EXE
  - Sets DLL path for service in the registry
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:992
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" QQ2O10.lnk main
  2⤵
  - Blocklisted process makes network request
  - Sets DLL path for service in the registry
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1580
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\97FE8F~1.EXE > nul & rd c:\%Progr~1 > nul
  2⤵
  PID:1672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\%Program Files%\QQ2O10.lnk

Filesize
71.1MB

MD5
03f4a51c0d0a3e45bda40f075716b304

SHA1
45f6c31e64a60033a33fd7591d3e483173319e91

SHA256
5c0148445e855afd3855ec38facdca80da88c0f58de20c60faaf4290114b3f58

SHA512
1510cc2cdba75aeac54b633c62f901e5410221920f5cb6ca37782980b7c8dde9e5b5ebbf6b807792dbb88e5c9a309dabbff40cbaa64ff5110b0a98eb692a0359

Download Submit
C:\Program Files\%Program Files%\laass.exe

Filesize
9KB

MD5
359c541c07a39ab11bb45aad29b2d2ce

SHA1
3c4f277f184ae306a4d0efe1bcb9e03ecabbb9b7

SHA256
6e2378348ebebf5b301744fedb0be396ef4e7e92ad94877da79eed9eb46850d5

SHA512
768050272dd4875a4c2a6a96f6337334c05d1512dfc0cc9ceee883a7c701de5e2e90872a6f9029de5b528b74c07cb8aa61c10f9f9e834f8021e9759136fcfbff

Download Submit
\??\c:\ntldr.sys

Filesize
88B

MD5
a78667573d9a9ceb25a0d4e1a7a2db8b

SHA1
9a4a9cf44d39df2a24f86fc332cb3782eef8876d

SHA256
49a93525279882890cb85cb794dfebd8fdc1f10fe0127d016ff1fc864a65167a

SHA512
67276d58e5e98e5cfc1853a4b405390f8d9cad8171dc75b99878a8d5e7ddfbef7694fa5be5e50b733b0986301fef6a73171fef2c7b63d2473ba4a2dc105a5d18

Download Submit
\Program Files\%Program Files%\QQ2O10.lnk

Filesize
71.1MB

MD5
03f4a51c0d0a3e45bda40f075716b304

SHA1
45f6c31e64a60033a33fd7591d3e483173319e91

SHA256
5c0148445e855afd3855ec38facdca80da88c0f58de20c60faaf4290114b3f58

SHA512
1510cc2cdba75aeac54b633c62f901e5410221920f5cb6ca37782980b7c8dde9e5b5ebbf6b807792dbb88e5c9a309dabbff40cbaa64ff5110b0a98eb692a0359

Download Submit
\Program Files\%Program Files%\QQ2O10.lnk

Filesize
71.1MB

MD5
03f4a51c0d0a3e45bda40f075716b304

SHA1
45f6c31e64a60033a33fd7591d3e483173319e91

SHA256
5c0148445e855afd3855ec38facdca80da88c0f58de20c60faaf4290114b3f58

SHA512
1510cc2cdba75aeac54b633c62f901e5410221920f5cb6ca37782980b7c8dde9e5b5ebbf6b807792dbb88e5c9a309dabbff40cbaa64ff5110b0a98eb692a0359

Download Submit
\Program Files\%Program Files%\laass.exe

Filesize
9KB

MD5
359c541c07a39ab11bb45aad29b2d2ce

SHA1
3c4f277f184ae306a4d0efe1bcb9e03ecabbb9b7

SHA256
6e2378348ebebf5b301744fedb0be396ef4e7e92ad94877da79eed9eb46850d5

SHA512
768050272dd4875a4c2a6a96f6337334c05d1512dfc0cc9ceee883a7c701de5e2e90872a6f9029de5b528b74c07cb8aa61c10f9f9e834f8021e9759136fcfbff

Download Submit
\Program Files\%Program Files%\laass.exe

Filesize
9KB

MD5
359c541c07a39ab11bb45aad29b2d2ce

SHA1
3c4f277f184ae306a4d0efe1bcb9e03ecabbb9b7

SHA256
6e2378348ebebf5b301744fedb0be396ef4e7e92ad94877da79eed9eb46850d5

SHA512
768050272dd4875a4c2a6a96f6337334c05d1512dfc0cc9ceee883a7c701de5e2e90872a6f9029de5b528b74c07cb8aa61c10f9f9e834f8021e9759136fcfbff

Download Submit
memory/992-58-0x0000000000000000-mapping.dmp

Download
memory/992-69-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/1580-61-0x0000000000000000-mapping.dmp

Download
memory/1580-70-0x0000000010000000-0x0000000010027000-memory.dmp

Filesize
156KB

Download
memory/1652-64-0x0000000000400000-0x00000000012FA141-memory.dmp

Filesize
15.0MB

Download
memory/1652-54-0x0000000000400000-0x00000000012FA141-memory.dmp

Filesize
15.0MB

Download
memory/1652-55-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1672-62-0x0000000000000000-mapping.dmp

Download