303bd4a9a4f522900dcb9af3030f9683b64cb904e12e75ed06723c43215ef438

Analysis

max time kernel
25s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
14/10/2022, 12:08

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General

Target

tmp.exe
Size

797KB
MD5

774934501fa2c6c6ec22f6989b1543f4
SHA1

34a787999c1d1ca742a92099aa083babc39a9da4
SHA256

303bd4a9a4f522900dcb9af3030f9683b64cb904e12e75ed06723c43215ef438
SHA512

9359eea59f36f6a4cbdbba57a97336100798d338f979c8bd7c81f6f48e3a75f055043f2c0eda548ff95e8a8097993c4847e47cdf3f541fbe4f8ff0912e6516a6
SSDEEP

24576:9F02K/c+HpNeL72e/QzC2X4LJSOKl696D:X0Z/c+mPQmtgmI

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1548	Lesson.exe.pif

Loads dropped DLL 1 IoCs

pid	Process
1268	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	tmp.exe

Enumerates processes with tasklist 1 TTPs 2 IoCs

Process Discovery

T1057

pid	Process
852	tasklist.exe
1304	tasklist.exe

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
1580	PING.EXE
1844	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1548	Lesson.exe.pif
1548	Lesson.exe.pif
1548	Lesson.exe.pif

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	852	tasklist.exe
Token: SeDebugPrivilege	1304	tasklist.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1548	Lesson.exe.pif
1548	Lesson.exe.pif
1548	Lesson.exe.pif

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1548	Lesson.exe.pif
1548	Lesson.exe.pif
1548	Lesson.exe.pif

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 1192	1952	tmp.exe	28
PID 1952 wrote to memory of 1192	1952	tmp.exe	28
PID 1952 wrote to memory of 1192	1952	tmp.exe	28
PID 1952 wrote to memory of 1192	1952	tmp.exe	28
PID 1952 wrote to memory of 1228	1952	tmp.exe	30
PID 1952 wrote to memory of 1228	1952	tmp.exe	30
PID 1952 wrote to memory of 1228	1952	tmp.exe	30
PID 1952 wrote to memory of 1228	1952	tmp.exe	30
PID 1228 wrote to memory of 1268	1228	cmd.exe	32
PID 1228 wrote to memory of 1268	1228	cmd.exe	32
PID 1228 wrote to memory of 1268	1228	cmd.exe	32
PID 1228 wrote to memory of 1268	1228	cmd.exe	32
PID 1268 wrote to memory of 852	1268	cmd.exe	33
PID 1268 wrote to memory of 852	1268	cmd.exe	33
PID 1268 wrote to memory of 852	1268	cmd.exe	33
PID 1268 wrote to memory of 852	1268	cmd.exe	33
PID 1268 wrote to memory of 964	1268	cmd.exe	34
PID 1268 wrote to memory of 964	1268	cmd.exe	34
PID 1268 wrote to memory of 964	1268	cmd.exe	34
PID 1268 wrote to memory of 964	1268	cmd.exe	34
PID 1268 wrote to memory of 1304	1268	cmd.exe	36
PID 1268 wrote to memory of 1304	1268	cmd.exe	36
PID 1268 wrote to memory of 1304	1268	cmd.exe	36
PID 1268 wrote to memory of 1304	1268	cmd.exe	36
PID 1268 wrote to memory of 1960	1268	cmd.exe	37
PID 1268 wrote to memory of 1960	1268	cmd.exe	37
PID 1268 wrote to memory of 1960	1268	cmd.exe	37
PID 1268 wrote to memory of 1960	1268	cmd.exe	37
PID 1268 wrote to memory of 1160	1268	cmd.exe	38
PID 1268 wrote to memory of 1160	1268	cmd.exe	38
PID 1268 wrote to memory of 1160	1268	cmd.exe	38
PID 1268 wrote to memory of 1160	1268	cmd.exe	38
PID 1268 wrote to memory of 1548	1268	cmd.exe	39
PID 1268 wrote to memory of 1548	1268	cmd.exe	39
PID 1268 wrote to memory of 1548	1268	cmd.exe	39
PID 1268 wrote to memory of 1548	1268	cmd.exe	39
PID 1268 wrote to memory of 1580	1268	cmd.exe	40
PID 1268 wrote to memory of 1580	1268	cmd.exe	40
PID 1268 wrote to memory of 1580	1268	cmd.exe	40
PID 1268 wrote to memory of 1580	1268	cmd.exe	40
PID 1228 wrote to memory of 1844	1228	cmd.exe	41
PID 1228 wrote to memory of 1844	1228	cmd.exe	41
PID 1228 wrote to memory of 1844	1228	cmd.exe	41
PID 1228 wrote to memory of 1844	1228	cmd.exe	41

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\SysWOW64\ftp.exe
  ftp /?
  2⤵
  PID:1192
- C:\Windows\SysWOW64\cmd.exe
  cmd /c cmd < Rooms.ppt & ping -n 5 localhost
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1268
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "imagename eq AvastUI.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:852
  - - C:\Windows\SysWOW64\find.exe
      find /I /N "avastui.exe"
      4⤵
      PID:964
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "imagename eq AVGUI.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:1304
  - - C:\Windows\SysWOW64\find.exe
      find /I /N "avgui.exe"
      4⤵
      PID:1960
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^qkvETill$" Grocery.ppt
      4⤵
      PID:1160
  - - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Lesson.exe.pif
      Lesson.exe.pif L
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      PID:1548
  - - C:\Windows\SysWOW64\PING.EXE
      ping localhost -n 5
      4⤵
      Runs ping.exe
      PID:1580
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 5 localhost
    3⤵
    - Runs ping.exe
    PID:1844

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

Process Discovery

T1057

Remote System Discovery

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Collected.ppt

Filesize
911KB

MD5
c9eb5f3a20be611e4d443fe77c2a86ad

SHA1
ff463868b1ad385ef6e997cd86ba4ded2ad9f2a9

SHA256
05ee14e114cf200567c8412c491e840a81117c80a8e98d5dedf969250138edfb

SHA512
7d6f9a3f73c89e77f0b00ffe545767084394aa1b103a5b889a36c12d27b761696fa6b83356d3c42cde7736b1bfa523f415382014e1597bc2e3aca23476141a47

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Grocery.ppt

Filesize
924KB

MD5
f2998acca867906fac6889ce3cc83256

SHA1
d4368c536a1733f059b132d458e4248db5d08cc7

SHA256
b9d12a436dbe1c34cdb555f9003f6f96d29f326e62f0982b02cbf14890b50520

SHA512
a0a0b3928d70e2bcc05498857aabfa09fc2d0463e323565e26ccc092894ea6e35206465d57e9548ac3d4e1a3ec529ec3e9d89326dd6175b834009230ac273138

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Lesson.exe.pif

Filesize
924KB

MD5
6987e4cd3f256462f422326a7ef115b9

SHA1
71672a495b4603ecfec40a65254cb3ba8766bbe0

SHA256
3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0

SHA512
4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Lesson.exe.pif

Filesize
924KB

MD5
6987e4cd3f256462f422326a7ef115b9

SHA1
71672a495b4603ecfec40a65254cb3ba8766bbe0

SHA256
3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0

SHA512
4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rooms.ppt

Filesize
11KB

MD5
07bc85d301b69e32b9485dfeb3bbc6f4

SHA1
e1a14b5410f9d870e6e034d75207e03abd01bc40

SHA256
92b500ce272fcde0fee5793b1ba2cc5f600be2fec517a0b4062d7916ab824577

SHA512
cd11ba14c0da33ab73c342285815473250d1c5914de59927e5164efbace098368d877c951683497c5f17479e2640a9c5b59aa5fdf41f9af29cbb11abf216c328

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\Lesson.exe.pif

Filesize
924KB

MD5
6987e4cd3f256462f422326a7ef115b9

SHA1
71672a495b4603ecfec40a65254cb3ba8766bbe0

SHA256
3e26723394ade92f8163b5643960189cb07358b0f96529a477d37176d68aa0a0

SHA512
4b1d7f7ffee39a2d65504767beeddd4c3374807a93889b14e7e73db11e478492dec349aedca03ce828f21a66bb666a68d3735443f4249556e10825a4cd7dfeb4

Download Submit
memory/1548-69-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download