eb71dad7e3c7fc10f128a9f4c1aebdb527eb4192e3525010322559ca9b63d610

Analysis

max time kernel
454s
max time network
1178s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
09/06/2024, 06:32

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General

Target
$R0/Uninstall EasyMC Launcher.exe
Size 125KB
Sample240609-hapc7sfg22
SHA256 56274ae1ba0dba065ef15650ecba0cb722896ee19f5288c41715e1b6e0fa901d
MD5 24729ea131a1e78311ca5c264d6633c4
SHA1 43512fddd48bdc69efc80c21042dfa703de82afd
SHA512 91b0d3f45b89c23103c6a9f84b456ef983c049ea1b7c53e75868585182f766efb847ea56125ddc54836bdf81f358defac4014197127f61b126037763976cfc95
SSDEEP 3072:on77v00hEoDEtauxLXG7TQgp9aH2tvhOEA1RJCir86SrSrv6Ia3V:o740IBL2nPp9s2t0EyL+yaF
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4632	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
4632	Un_A.exe
4632	Un_A.exe
4632	Un_A.exe
4632	Un_A.exe
4632	Un_A.exe
4632	Un_A.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2656	tasklist.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4632	Un_A.exe
4632	Un_A.exe
2656	tasklist.exe
2656	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 4632	2424	Uninstall EasyMC Launcher.exe	79
PID 2424 wrote to memory of 4632	2424	Uninstall EasyMC Launcher.exe	79
PID 2424 wrote to memory of 4632	2424	Uninstall EasyMC Launcher.exe	79
PID 4632 wrote to memory of 3516	4632	Un_A.exe	80
PID 4632 wrote to memory of 3516	4632	Un_A.exe	80
PID 4632 wrote to memory of 3516	4632	Un_A.exe	80
PID 3516 wrote to memory of 2656	3516	cmd.exe	82
PID 3516 wrote to memory of 2656	3516	cmd.exe	82
PID 3516 wrote to memory of 2656	3516	cmd.exe	82
PID 3516 wrote to memory of 2144	3516	cmd.exe	83
PID 3516 wrote to memory of 2144	3516	cmd.exe	83
PID 3516 wrote to memory of 2144	3516	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall EasyMC Launcher.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall EasyMC Launcher.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq EasyMC Launcher.exe" | %SYSTEMROOT%\System32\find.exe "EasyMC Launcher.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3516
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq EasyMC Launcher.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2656
  - - C:\Windows\SysWOW64\find.exe
      C:\Windows\System32\find.exe "EasyMC Launcher.exe"
      4⤵
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StdUtils.dll

Path C:\Users\Admin\AppData\Local\Temp\nsm65CF.tmp\StdUtils.dll
Size 100KB
SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
MD5 c6a6e03f77c313b267498515488c5740
SHA1 3d49fc2784b9450962ed6b82b46e9c3c957d7c15
SHA512 9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
SSDEEP 3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v
MD5 SHA1 SHA512 SSDEEP

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System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsm65CF.tmp\System.dll
Size 12KB
SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
MD5 SHA1 SHA512 SSDEEP

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WinShell.dll

Path C:\Users\Admin\AppData\Local\Temp\nsm65CF.tmp\WinShell.dll
Size 3KB
SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
MD5 1cc7c37b7e0c8cd8bf04b6cc283e1e56
SHA1 0b9519763be6625bd5abce175dcc59c96d100d4c
SHA512 7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f
MD5 SHA1 SHA512

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nsExec.dll

Path C:\Users\Admin\AppData\Local\Temp\nsm65CF.tmp\nsExec.dll
Size 6KB
SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
MD5 ec0504e6b8a11d5aad43b296beeb84b2
SHA1 91b5ce085130c8c7194d66b2439ec9e1c206497c
SHA512 3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57
SSDEEP 96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr
MD5 SHA1 SHA512 SSDEEP

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Un_A.exe

Path C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
Size 125KB
SHA256 56274ae1ba0dba065ef15650ecba0cb722896ee19f5288c41715e1b6e0fa901d
MD5 24729ea131a1e78311ca5c264d6633c4
SHA1 43512fddd48bdc69efc80c21042dfa703de82afd
SHA512 91b0d3f45b89c23103c6a9f84b456ef983c049ea1b7c53e75868585182f766efb847ea56125ddc54836bdf81f358defac4014197127f61b126037763976cfc95
SSDEEP 3072:on77v00hEoDEtauxLXG7TQgp9aH2tvhOEA1RJCir86SrSrv6Ia3V:o740IBL2nPp9s2t0EyL+yaF
MD5 SHA1 SHA512 SSDEEP

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