73cc2881ef511788661955a624db9baf40ac16bc63266c5c3bb3fe62b4856d72

Analysis

max time kernel
293s
max time network
301s
platform
windows10-1703_x64
resource
win10-20240221-ja
resource tags

arch:x64arch:x86image:win10-20240221-jalocale:ja-jpos:windows10-1703-x64systemwindows
submitted
21-02-2024 17:05

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General

Target

batexe.exe
Size

9.4MB
MD5

cdc9eacffc6d2bf43153815043064427
SHA1

d05101f265f6ea87e18793ab0071f5c99edf363f
SHA256

73cc2881ef511788661955a624db9baf40ac16bc63266c5c3bb3fe62b4856d72
SHA512

fc6945957e160bf7059c936c329aae438e6c1521e5e43a8434f58058230d89e818eb6ff80331a4b952dbb600b8cc134ecba54e5641bf549723c98f85e993fde6
SSDEEP

196608:ERAefrn9wcsTRAJgwusnWpV3h9XxSeEGaT+TKkGzySdUkI56kBIyky:E5Tn9YVwdnWLXxkvLlzkuv

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4488	b2e.exe
4340	cpuminer-sse2.exe

Loads dropped DLL 5 IoCs

pid	Process
4340	cpuminer-sse2.exe
4340	cpuminer-sse2.exe
4340	cpuminer-sse2.exe
4340	cpuminer-sse2.exe
4340	cpuminer-sse2.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2236-5-0x0000000000400000-0x000000000393A000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 4488	2236	batexe.exe	74
PID 2236 wrote to memory of 4488	2236	batexe.exe	74
PID 2236 wrote to memory of 4488	2236	batexe.exe	74
PID 4488 wrote to memory of 3956	4488	b2e.exe	75
PID 4488 wrote to memory of 3956	4488	b2e.exe	75
PID 4488 wrote to memory of 3956	4488	b2e.exe	75
PID 3956 wrote to memory of 4340	3956	cmd.exe	78
PID 3956 wrote to memory of 4340	3956	cmd.exe	78

C:\Users\Admin\AppData\Local\Temp\batexe.exe
"C:\Users\Admin\AppData\Local\Temp\batexe.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\7791.tmp\b2e.exe
  "C:\Users\Admin\AppData\Local\Temp\7791.tmp\b2e.exe" C:\Users\Admin\AppData\Local\Temp\7791.tmp\b2e.exe C:\Users\Admin\AppData\Local\Temp "C:\Users\Admin\AppData\Local\Temp\batexe.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7995.tmp\batchfile.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Users\Admin\AppData\Local\Temp\cpuminer-sse2.exe
      cpuminer-sse2.exe -a yespower -o stratum+tcp://yespower.sea.mine.zpool.ca:6234 --userpass=DJXKcu8iouhRppneQL9XbYQ9ovs87y4cYZ:c=doge -t 3
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      PID:4340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7791.tmp\b2e.exe

Filesize
10.2MB

MD5
4b73237303174dc8ca8eaa4e47a491e6

SHA1
d641a997f895488a01cc84cc4865c38e0dd8afb3

SHA256
7789b94b3c32f008c19d5fc7dc6d6c9994e5bee2e0da4cf580a07683cdf46c9e

SHA512
1db8218cc161e91b1d704383cf4f70ccb18a4f1d1560508b546e22d61169cd4420830d5f62c862c8f6bdeea0bff220781c713652b19d9d9b1e0e8e2bb50e2653

Download Submit
C:\Users\Admin\AppData\Local\Temp\7791.tmp\b2e.exe

Filesize
10.0MB

MD5
44a3aa62d9e977f3a96594d58a031bc9

SHA1
f2eb9f477c5b36cabfcae04c11969e089e265d22

SHA256
bcc13180a3c65e5fbd13472e6e00c013b22ac1e8f29f306aefd6fbb93615f715

SHA512
29450ad775509d5460e633c7f97e3f3a85e707dc83b8a71f2ea65352b4b3e599770533da0e8029e991931e2d26eb437235a62c7a0234fccfd5aff80224d93ea0

Download Submit
C:\Users\Admin\AppData\Local\Temp\7995.tmp\batchfile.bat

Filesize
136B

MD5
8ea7ac72a10251ecfb42ef4a88bd330a

SHA1
c30f6af73a42c0cc89bd20fe95f9159d6f0756c5

SHA256
65e2674fc9b921a76deaf3740603359794c04e059e8937ab36eb931d65f40ec9

SHA512
a908979d588625aa24eb81238d07d88a56be5388e1265ebd2fe09889ed807aa9a4af77107e72a843c31acadbe06db0d7f6f6a3c95fb481a71e549e8eb74c2ff0

Download Submit
C:\Users\Admin\AppData\Local\Temp\cpuminer-sse2.exe

Filesize
2.3MB

MD5
4c04147c386ba8792ac6a03069572a8a

SHA1
dda67789fc1d0f2469ca95f01a5c81034853ca6a

SHA256
c7739a1e940a282703d06eccda7110426d306f390e97fdbbd9df18472fd132cd

SHA512
a8b5a0b878a9a7d30cb38feff814e1f4dce24d000158edc10a43ee9a89920bedf7adc92eb7e3913098b6aab7fbd0531f56fc09f508b5c2769992a94e55d153db

Download Submit
C:\Users\Admin\AppData\Local\Temp\libcurl-4.dll

Filesize
836KB

MD5
aeab40ed9a8e627ea7cefc1f5cf9bf7a

SHA1
5e2e8ca2881b9bf9edfa3c4fdcec6da1efa102d8

SHA256
218cfc4073bab4eddf0de0804f96b204687311e20a9e97994bff54c9b0e01ee9

SHA512
c0a67616fa01fdc351015212a718faf70da6612fbb3ec13da28dd7af9a507c56882fb7c3eea6fbc37d4d63b970157199d16d0756dbe3cb3bc2223e215cb104d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\libgcc_s_seh-1.dll

Filesize
1.2MB

MD5
7cf672bee2afba2dcd0c031ff985958e

SHA1
6b82a205db080ffdcb4a4470fce85a14413f3217

SHA256
c82f84171b9246d1cac261100b2199789c96c37b03b375f33b2c72afab060b05

SHA512
3e90d1c1efe0200cb3cc7b51d04783a3cce8391faa6ce554cff8b23dac60be9f8e4f980a8ac005fd9dff8ea4bdcb02311f7649c5be28eb32dcc26417fc4090e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\libstdc++-6.dll

Filesize
4.4MB

MD5
acc317c0d4e74bd8b3aa6efd46948763

SHA1
b6a40243cef0630324ba2f87d2aa0f6771c37c1c

SHA256
16214a96cee3d67c6f31cc9ad8066df9ac7845e130d214ec6d052f7ee38d6189

SHA512
a3ec9fb3a2381658138c6099d4d533da863ee7465c504865155997aa9e96377e72a48bd8c5a07458bb134f189b0e7e1ca36c5a5bbfbe75fcdcbdce2b6ba5adb1

Download Submit
C:\Users\Admin\AppData\Local\Temp\libwinpthread-1.dll

Filesize
606KB

MD5
585efec1bc1d4d916a4402c9875dff75

SHA1
d209613666ccac9d0ddab29a3bc59aa00a0968fa

SHA256
2f9984c591a5654434c53e8b4d0c5c187f1fd0bab95247d5c9bc1c0bd60e6232

SHA512
b93163cba4601ed999a7a7d1887113792e846c36850c6d84f2d505727dc06524bb959469f9df12928769f4535dc6074a6b3599b788a4844353e466742ce1e770

Download Submit
\Users\Admin\AppData\Local\Temp\libstdc++-6.dll

Filesize
5.6MB

MD5
c82b45463dd25a747bc1a705aad75abf

SHA1
652110c7df73ef2ac93ee6088ee64dfa3630ecc5

SHA256
437893a6491df08abbb9e710546d4b038fcdf778e2dbd0c367fa1fff684f1fbc

SHA512
4cf7d21b374f06f31d66e1054a81251e51d680c576a20bbab53f493b886ba1facbbe25c007a7705a11cd481f068b51c4df3497d67425024cc7968b13a6bde03e

Download Submit
\Users\Admin\AppData\Local\Temp\libstdc++-6.dll

Filesize
4.5MB

MD5
58a8157cafe4aceac0c086551d7cb8e2

SHA1
2998e68641d29acdeda2d6aee3c9101dcb0d49e7

SHA256
602d5aa02b1aca4961e6b8b0c12f1e1f4c10d614596052e06d8208753f9aaebd

SHA512
f21d3616fed594f6449361b6de7fe38e1a7b2081da72a7e1b196b9a1286c33776a2507746133e9cb7bf6c24e22bf37c3f601254d576e703dd7cf4d19fb0c05d7

Download Submit
memory/2236-5-0x0000000000400000-0x000000000393A000-memory.dmp

Filesize
53.2MB

Download
memory/4340-41-0x0000000070800000-0x00000000708BC000-memory.dmp

Filesize
752KB

Download
memory/4340-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-42-0x0000000061440000-0x000000006156B000-memory.dmp

Filesize
1.2MB

Download
memory/4340-101-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-43-0x0000000051AB0000-0x0000000051B48000-memory.dmp

Filesize
608KB

Download
memory/4340-44-0x0000000001020000-0x00000000028D5000-memory.dmp

Filesize
24.7MB

Download
memory/4340-96-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-51-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-56-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-40-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-66-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-71-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-76-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-81-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4340-91-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4488-50-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4488-6-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download