335a54a3b3e73bb29d44cb0188a1556d5a1490508de77793518c0a782eec109c

Analysis

max time kernel
158s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 04:45

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General

Target

28b557cf7c7238b9af8a1f1c7e035a01.exe
Size

209KB
MD5

28b557cf7c7238b9af8a1f1c7e035a01
SHA1

c29b24c2840d4eb9215e2c90fe33a6f956ef11e3
SHA256

335a54a3b3e73bb29d44cb0188a1556d5a1490508de77793518c0a782eec109c
SHA512

57d18c3958bc111dc79d1954d533cc191de1841bdb52039a16bd69a9dff996af486969d78895c0205f4a6473ec4df927c36d996b42b4ef7b47d5893c0ff37cc7
SSDEEP

3072:gldA0eEdgNlgDv1BjDIVhnsRKwia3T3EdmTDdpo7lXkpbGeiaMtl2BU26C4XOQFs:gldA0h1jbjDPR4aD0dO3pbcaMlnZCT

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3524	u.dll
4360	mpress.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	calc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3544	OpenWith.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 4392	3308	28b557cf7c7238b9af8a1f1c7e035a01.exe	91
PID 3308 wrote to memory of 4392	3308	28b557cf7c7238b9af8a1f1c7e035a01.exe	91
PID 3308 wrote to memory of 4392	3308	28b557cf7c7238b9af8a1f1c7e035a01.exe	91
PID 4392 wrote to memory of 3524	4392	cmd.exe	92
PID 4392 wrote to memory of 3524	4392	cmd.exe	92
PID 4392 wrote to memory of 3524	4392	cmd.exe	92
PID 3524 wrote to memory of 4360	3524	u.dll	93
PID 3524 wrote to memory of 4360	3524	u.dll	93
PID 3524 wrote to memory of 4360	3524	u.dll	93
PID 4392 wrote to memory of 2896	4392	cmd.exe	94
PID 4392 wrote to memory of 2896	4392	cmd.exe	94
PID 4392 wrote to memory of 2896	4392	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\28b557cf7c7238b9af8a1f1c7e035a01.exe
"C:\Users\Admin\AppData\Local\Temp\28b557cf7c7238b9af8a1f1c7e035a01.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3308
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2B03.tmp\vir.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Users\Admin\AppData\Local\Temp\u.dll
    u.dll -bat vir.bat -save 28b557cf7c7238b9af8a1f1c7e035a01.exe.com -include s.dll -overwrite -nodelete
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3524
  - - C:\Users\Admin\AppData\Local\Temp\343A.tmp\mpress.exe
      "C:\Users\Admin\AppData\Local\Temp\343A.tmp\mpress.exe" "C:\Users\Admin\AppData\Local\Temp\exe345A.tmp"
      4⤵
      Executes dropped EXE
      PID:4360
- - C:\Windows\SysWOW64\calc.exe
    CALC.EXE
    3⤵
    - Modifies registry class
    PID:2896

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:3544

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2B03.tmp\vir.bat

Filesize
1KB

MD5
b5d5499762eec1f9769753794f16ae33

SHA1
a7a691339b8e077bfeaba1f26c0ba6d885a0fbef

SHA256
b80370e0db261d4783995870e39b533d843ca8813a784b0181c5b7a6ff854330

SHA512
5f6be0c15d2e07dbd5211f8578301dfc860dea86afb1e3a3e8af9c6bf871a457f65db8c69c7f846aa05ddb9879fa75b64623b9e33973d936f2c9c02e63ddf118

Download Submit
C:\Users\Admin\AppData\Local\Temp\343A.tmp\mpress.exe

Filesize
100KB

MD5
e42b81b9636152c78ba480c1c47d3c7f

SHA1
66a2fca3925428ee91ad9df5b76b90b34d28e0f8

SHA256
7c24c72439880e502be51da5d991b9b56a1af242b4eef4737f0f43b4a87546d2

SHA512
4b2986106325c5c3fe11ab460f646d4740eb85252aa191f2b84e29901fac146d7a82e31c72d39c38a70277f78278621ee506d9da2681f5019cd64c7df85cff6e

Download Submit
C:\Users\Admin\AppData\Local\Temp\exe345A.tmp

Filesize
41KB

MD5
2962dfcac22070e3da981e1115397938

SHA1
09a2ddd77cc9265c1c9a3a0b3797ea5007e3bd28

SHA256
d47a5a1f144a7b1a0267ec604f18238419a29402b4ef51f1b2165f346ef88951

SHA512
8efe28ee9ba694a2cc010bb61736de3f7bc190c3656f814a700e9992391a174982fa21f16d24ce1c36876e095f1a76569183cee52048ae22102cac621beb422a

Download Submit
C:\Users\Admin\AppData\Local\Temp\mpr3AE1.tmp

Filesize
24KB

MD5
b799e4b3cff5cefeb8355cff4153f617

SHA1
cf39041f0b03033f148329b62c2f593ffb3ce8cc

SHA256
e6f5642d95d82404f0c87ce3b455c662ad247d533cc01b0f454d194b244207c4

SHA512
62e28c9cf91fd311d2dee021062a92eacf482455842a6f835afedfb368d84de089569ae032a37c85c05c4cc20d1e1aeeda2cda6e673fa42e00b80b19974b9f63

Download Submit
C:\Users\Admin\AppData\Local\Temp\s.dll

Filesize
700KB

MD5
03e84bf7ea2eba6e881e868ceefe2526

SHA1
09019ed20cf16847a264f5d1840ee0802f1778a6

SHA256
8b16836b18106d0e8fdbb4b26beefee04479fe219a59cc2a186b68db91fcd832

SHA512
32a47a7b4725f2d71573ad855b0a3bc99b3fa86d70f7b1b60456361bbcd03d37ea58f2b7092c0b6993e156db4ddd66b1d544363523f580a6dd8c055697ec2026

Download Submit
C:\Users\Admin\AppData\Local\Temp\vir.bat

Filesize
2KB

MD5
938c53189f97d1e84a6ad473c89c8677

SHA1
f2aa832525553ad1fddd7d4eeaccb7c04be3a434

SHA256
2c7994b20a27aa566fc48d3d52a9817ab4df2f291fb6d7547639bc1ac6a984ae

SHA512
9d6f5096a01b721b312144d94ff8d169db1d510be32a648b28807c95704eab8cc74a0c121aa5c47d056de1507390c37bfc9cc8c81965774df4512c1a9909b35e

Download Submit
memory/3308-0-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/3308-1-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/3308-55-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/4360-58-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4360-64-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads