73cc2881ef511788661955a624db9baf40ac16bc63266c5c3bb3fe62b4856d72

Analysis

max time kernel
292s
max time network
300s
platform
windows10-1703_x64
resource
win10-20231220-ja
resource tags

arch:x64arch:x86image:win10-20231220-jalocale:ja-jpos:windows10-1703-x64systemwindows
submitted
14/02/2024, 12:24

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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
4476	b2e.exe
1996	cpuminer-sse2.exe

Loads dropped DLL 5 IoCs

pid	Process
1996	cpuminer-sse2.exe
1996	cpuminer-sse2.exe
1996	cpuminer-sse2.exe
1996	cpuminer-sse2.exe
1996	cpuminer-sse2.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5040-6-0x0000000000400000-0x000000000393A000-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 5040 wrote to memory of 4476	5040	batexe.exe	75
PID 5040 wrote to memory of 4476	5040	batexe.exe	75
PID 5040 wrote to memory of 4476	5040	batexe.exe	75
PID 4476 wrote to memory of 1308	4476	b2e.exe	76
PID 4476 wrote to memory of 1308	4476	b2e.exe	76
PID 4476 wrote to memory of 1308	4476	b2e.exe	76
PID 1308 wrote to memory of 1996	1308	cmd.exe	79
PID 1308 wrote to memory of 1996	1308	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\batexe.exe
"C:\Users\Admin\AppData\Local\Temp\batexe.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Users\Admin\AppData\Local\Temp\979C.tmp\b2e.exe
  "C:\Users\Admin\AppData\Local\Temp\979C.tmp\b2e.exe" C:\Users\Admin\AppData\Local\Temp\979C.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:4476
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9961.tmp\batchfile.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1308
  - - 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:1996

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\979C.tmp\b2e.exe

Filesize
10.2MB

MD5
c25d1552c8711cb78b90125c96165971

SHA1
5e6c50fbc6e43480fbec677ad22e74087db294fc

SHA256
8f853adfe5523a4d9bce346f5eefa25607a41713c7ad63c6f1e1c95a685312b8

SHA512
fe987fb9152a202f9a35c5fa4a7d34e100ca8d786e7d4800f304f34685116be7566cd882023e74a8f5335ac551cd32144edc35dc5f8be2753d40cd63376c989c

Download Submit
C:\Users\Admin\AppData\Local\Temp\979C.tmp\b2e.exe

Filesize
10.5MB

MD5
b76418fd61e76828df36105e94c58dd3

SHA1
d6db21cb1595176ada751980a08b62fb9fa47a56

SHA256
64c7e40e6c9968edb772e30e0ab8524f67160e9056dcb1d4ac93e332dbd49935

SHA512
83cdda94cde83f4b68d9a10d73a4934966503aad3644238c565bb3571e8ca2bf7fe7a660a1eee48f8fc88caa04309f630a2d12c504bc226f1ef4885139da3b07

Download Submit
C:\Users\Admin\AppData\Local\Temp\9961.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\libstdc++-6.dll

Filesize
8.4MB

MD5
fef74cc1ff66abe5af544639749d72d1

SHA1
6fcdd6b95e3bdc0248f8470d905f98cf6a4a4a88

SHA256
0e76e1d2f66a3c7e7635abef769e87a6bcf0e4133e596116741ac9683e1179eb

SHA512
5736c80e432592da4c8842db9d5f2de65709b111b4aa7b7afbb8ec59dfd02bb57b629fa645c5ce69a8f79e0e63270ae6979cb5231e699c423a7ea4abfd8d86dc

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\libcurl-4.dll

Filesize
836KB

MD5
aeab40ed9a8e627ea7cefc1f5cf9bf7a

SHA1
5e2e8ca2881b9bf9edfa3c4fdcec6da1efa102d8

SHA256
218cfc4073bab4eddf0de0804f96b204687311e20a9e97994bff54c9b0e01ee9

SHA512
c0a67616fa01fdc351015212a718faf70da6612fbb3ec13da28dd7af9a507c56882fb7c3eea6fbc37d4d63b970157199d16d0756dbe3cb3bc2223e215cb104d8

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

Filesize
1.2MB

MD5
7cf672bee2afba2dcd0c031ff985958e

SHA1
6b82a205db080ffdcb4a4470fce85a14413f3217

SHA256
c82f84171b9246d1cac261100b2199789c96c37b03b375f33b2c72afab060b05

SHA512
3e90d1c1efe0200cb3cc7b51d04783a3cce8391faa6ce554cff8b23dac60be9f8e4f980a8ac005fd9dff8ea4bdcb02311f7649c5be28eb32dcc26417fc4090e5

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

Filesize
11.7MB

MD5
986fec95770334b895cdb7a0c6697918

SHA1
0bee94f9a180a08ff52b846d127500f49e9cb1c4

SHA256
b0dc5b01bfb982b437b077aa9c196e59e2e6887de3c1d4e92a4b8dd5d456daec

SHA512
7fefd472303877f9684971e6bd4caddd59fca8dd381dbffdd5fbcd952e9c998cc246ace40704d5417e38cb1c79cb3f0308513e6d72ef7d20f6d76b83df6262c6

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

Filesize
10.8MB

MD5
94287fa383674e309646f665f1499012

SHA1
7e39f8c66621606efca6a34c28c7ae1ab3c7fda1

SHA256
e71b0f16abb9d3260bfa5e0b98311f8afca116a385620cc3056e0ca351dc6f70

SHA512
0d7c09aa290e1c051cd8bbab4e64d62622e70a6a58e874c21635c8eda61ff2f57fd6c54c889b03da4f9b1ab2142691e4033fd42649abfc1e24b511529b29373f

Download Submit
memory/1996-40-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-56-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-101-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-41-0x0000000070800000-0x00000000708BC000-memory.dmp

Filesize
752KB

Download
memory/1996-43-0x000000006D380000-0x000000006D418000-memory.dmp

Filesize
608KB

Download
memory/1996-42-0x0000000061440000-0x000000006156B000-memory.dmp

Filesize
1.2MB

Download
memory/1996-44-0x0000000000F40000-0x00000000027F5000-memory.dmp

Filesize
24.7MB

Download
memory/1996-45-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-96-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-86-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-66-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-76-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1996-81-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4476-50-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4476-4-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/5040-6-0x0000000000400000-0x000000000393A000-memory.dmp

Filesize
53.2MB

Download