Overview

overview

10

Static

static

eb3db5499d...a1.exe

windows7_x64

10

eb3db5499d...a1.exe

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    29-10-2021 06:38

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General

  • Target

    eb3db5499d6268d825cb9290596230a1.exe

  • Size

    340KB

  • MD5

    eb3db5499d6268d825cb9290596230a1

  • SHA1

    80e7b787928df6c7599956c08039d108b96c3e93

  • SHA256

    a34d8cb4697d93f0030e651f1e1f66d67c411b3a7b68832c9981ad145a560bd3

  • SHA512

    2afe915889886ba28f4acf9bc4f4c031598e7582965ef05d0a461ce9f2ea3c86be72fbe6dbb9fb0285550ba542872542bed6c65804f4b791f0861a0e784f2203

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://xacokuo8.top/

http://hajezey1.top/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb3db5499d6268d825cb9290596230a1.exe
    "C:\Users\Admin\AppData\Local\Temp\eb3db5499d6268d825cb9290596230a1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1020
    • C:\Users\Admin\AppData\Local\Temp\eb3db5499d6268d825cb9290596230a1.exe
      "C:\Users\Admin\AppData\Local\Temp\eb3db5499d6268d825cb9290596230a1.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1932
  • C:\Users\Admin\AppData\Roaming\utijduj
    C:\Users\Admin\AppData\Roaming\utijduj
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Users\Admin\AppData\Roaming\utijduj
      C:\Users\Admin\AppData\Roaming\utijduj
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:668

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\utijduj
    MD5

    eb3db5499d6268d825cb9290596230a1

    SHA1

    80e7b787928df6c7599956c08039d108b96c3e93

    SHA256

    a34d8cb4697d93f0030e651f1e1f66d67c411b3a7b68832c9981ad145a560bd3

    SHA512

    2afe915889886ba28f4acf9bc4f4c031598e7582965ef05d0a461ce9f2ea3c86be72fbe6dbb9fb0285550ba542872542bed6c65804f4b791f0861a0e784f2203

    Download Submit
  • C:\Users\Admin\AppData\Roaming\utijduj
    MD5

    eb3db5499d6268d825cb9290596230a1

    SHA1

    80e7b787928df6c7599956c08039d108b96c3e93

    SHA256

    a34d8cb4697d93f0030e651f1e1f66d67c411b3a7b68832c9981ad145a560bd3

    SHA512

    2afe915889886ba28f4acf9bc4f4c031598e7582965ef05d0a461ce9f2ea3c86be72fbe6dbb9fb0285550ba542872542bed6c65804f4b791f0861a0e784f2203

    Download Submit
  • C:\Users\Admin\AppData\Roaming\utijduj
    MD5

    eb3db5499d6268d825cb9290596230a1

    SHA1

    80e7b787928df6c7599956c08039d108b96c3e93

    SHA256

    a34d8cb4697d93f0030e651f1e1f66d67c411b3a7b68832c9981ad145a560bd3

    SHA512

    2afe915889886ba28f4acf9bc4f4c031598e7582965ef05d0a461ce9f2ea3c86be72fbe6dbb9fb0285550ba542872542bed6c65804f4b791f0861a0e784f2203

    Download Submit
  • memory/668-124-0x0000000000402E0C-mapping.dmp
    Download
  • memory/1020-115-0x0000000002E49000-0x0000000002E5A000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1020-118-0x0000000002BB0000-0x0000000002CFA000-memory.dmp
    Filesize

    1.3MB

    Download
  • memory/1920-122-0x0000000002EC9000-0x0000000002EDA000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1932-117-0x0000000000402E0C-mapping.dmp
    Download
  • memory/1932-116-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/3008-119-0x0000000001310000-0x0000000001326000-memory.dmp
    Filesize

    88KB

    Download
  • memory/3008-126-0x0000000001330000-0x0000000001346000-memory.dmp
    Filesize

    88KB

    Download