fec10378af7a07b910e9c343f04373fceb178f0a4557b4619005fb97c1d850e6

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05/01/2024, 03:22

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General

Target

42a0edbc632435d049ae7d771eb6e2ea.exe
Size

56KB
MD5

42a0edbc632435d049ae7d771eb6e2ea
SHA1

1db086391cff232fe0eea0970956a7092a96cec8
SHA256

fec10378af7a07b910e9c343f04373fceb178f0a4557b4619005fb97c1d850e6
SHA512

204b260dba2428cda723339526f4b0eb9ee19998fa50669e2092c3c96bdaab0b01c6fc3aaee2542419b90354e01613ed1ce36e42d630e575c47cbb5337092605
SSDEEP

768:5c/p2YuNl3bIp+eMMqoZIUGBF99l5C+UPivppyeOI8tIKGwkdw:nNl3Mp+eMpfBF99fCkvZ8tIEz

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\msosmsfpfis64.sys	42a0edbc632435d049ae7d771eb6e2ea.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Deletes itself 1 IoCs

pid	Process
1608	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2428	42a0edbc632435d049ae7d771eb6e2ea.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msosmnsf00.dll	42a0edbc632435d049ae7d771eb6e2ea.exe
File opened for modification	C:\Windows\SysWOW64\msosmnsf00.dll	42a0edbc632435d049ae7d771eb6e2ea.exe
File opened for modification	C:\Windows\SysWOW64\msosmnsf.dat	42a0edbc632435d049ae7d771eb6e2ea.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	42a0edbc632435d049ae7d771eb6e2ea.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2428	42a0edbc632435d049ae7d771eb6e2ea.exe
2428	42a0edbc632435d049ae7d771eb6e2ea.exe
2428	42a0edbc632435d049ae7d771eb6e2ea.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
480	services.exe
480	services.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	42a0edbc632435d049ae7d771eb6e2ea.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 260	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	7
PID 2428 wrote to memory of 340	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	6
PID 2428 wrote to memory of 388	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	5
PID 2428 wrote to memory of 400	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	4
PID 2428 wrote to memory of 436	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	3
PID 2428 wrote to memory of 480	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	2
PID 2428 wrote to memory of 496	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	1
PID 2428 wrote to memory of 504	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	27
PID 2428 wrote to memory of 608	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	26
PID 2428 wrote to memory of 688	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	25
PID 2428 wrote to memory of 764	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	23
PID 2428 wrote to memory of 824	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	8
PID 2428 wrote to memory of 864	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	22
PID 2428 wrote to memory of 976	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	20
PID 2428 wrote to memory of 284	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	9
PID 2428 wrote to memory of 1056	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	19
PID 2428 wrote to memory of 1072	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	18
PID 2428 wrote to memory of 1156	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	17
PID 2428 wrote to memory of 1164	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	16
PID 2428 wrote to memory of 1208	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	15
PID 2428 wrote to memory of 2196	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	14
PID 2428 wrote to memory of 1688	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	13
PID 2428 wrote to memory of 1580	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	12
PID 2428 wrote to memory of 1608	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	28
PID 2428 wrote to memory of 1608	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	28
PID 2428 wrote to memory of 1608	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	28
PID 2428 wrote to memory of 1608	2428	42a0edbc632435d049ae7d771eb6e2ea.exe	28

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:496

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
- Suspicious behavior: LoadsDriver
PID:480
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:824
- - C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    3⤵
    PID:1156
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:284
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1580
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1688
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1164
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1072
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:1056
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:976
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:864
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:764
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:688
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:608

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:400

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:388
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:504

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:340

C:\Windows\System32\smss.exe
\SystemRoot\System32\smss.exe
1⤵
PID:260

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2196

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1208
- C:\Users\Admin\AppData\Local\Temp\42a0edbc632435d049ae7d771eb6e2ea.exe
  "C:\Users\Admin\AppData\Local\Temp\42a0edbc632435d049ae7d771eb6e2ea.exe"
  2⤵
  - Drops file in Drivers directory
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\42a0edbc632435d049ae7d771eb6e2ea.exe"
    3⤵
    - Deletes itself
    PID:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\tmp1343.tmp

Filesize
12KB

MD5
ef3315129b08b57fa29873cb61708049

SHA1
852a3f8f89d0bd2ccb67714c200564bf759d9d1d

SHA256
742cbdb4b85efe9a972f2614204827afe4539e930152a9dd80bec48b2d4fb26a

SHA512
38c81518889d8e2a596aa137c019b2c6707da61512850fc1b7225b0ab88375ea2b194b3673880160a382eb12067d521c9eb0a68810156d76f08e994681255c93

Download Submit
memory/260-9-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/400-22-0x0000000000400000-0x0000000000401000-memory.dmp

Filesize
4KB

Download
memory/2428-10-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download
memory/2428-86-0x0000000010000000-0x0000000010028000-memory.dmp

Filesize
160KB

Download