Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2024 06:30

General

  • Target

    3250391200054 - EU14303 COTTERLEY Thé Noir Darjeeling.exe

  • Size

    1.2MB

  • MD5

    bdde3f2fca8eb09969b1dc90579a71e1

  • SHA1

    0b259b48afbf21c5ea9c9ef52c16d15a0e52728f

  • SHA256

    3b2c6392ce2ade6f3a5fd949df763736a273dd8daea8057869d692cb8242f066

  • SHA512

    c6604ce727b9c84ede591c46c7831cdcf1f5df9ec70f45a9e9767901e972ec78e61a553468cd7f92bfbbd25709f4f34d946550df1709291235f8514c43abb1cf

  • SSDEEP

    24576:9SOPcJoogMZ97gucAImvxrHeQywSoP663593VrS74Z/dT:XWoogMj9ImvnPSc/9FXZ1T

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3250391200054 - EU14303 COTTERLEY Thé Noir Darjeeling.exe
    "C:\Users\Admin\AppData\Local\Temp\3250391200054 - EU14303 COTTERLEY Thé Noir Darjeeling.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Program Files (x86)\windows mail\wab.exe
      "C:\Users\Admin\AppData\Local\Temp\3250391200054 - EU14303 COTTERLEY Thé Noir Darjeeling.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetWindowsHookEx
      PID:2704

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • \Users\Admin\AppData\Local\Temp\nsd1326.tmp\System.dll
    Filesize

    11KB

    MD5

    17ed1c86bd67e78ade4712be48a7d2bd

    SHA1

    1cc9fe86d6d6030b4dae45ecddce5907991c01a0

    SHA256

    bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

    SHA512

    0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

  • memory/2244-21-0x0000000004090000-0x0000000007378000-memory.dmp
    Filesize

    50.9MB

  • memory/2244-22-0x00000000776A0000-0x0000000077849000-memory.dmp
    Filesize

    1.7MB

  • memory/2244-23-0x0000000077890000-0x0000000077966000-memory.dmp
    Filesize

    856KB

  • memory/2244-24-0x0000000010000000-0x0000000010006000-memory.dmp
    Filesize

    24KB

  • memory/2244-26-0x0000000004090000-0x0000000007378000-memory.dmp
    Filesize

    50.9MB

  • memory/2704-25-0x00000000018D0000-0x0000000004BB8000-memory.dmp
    Filesize

    50.9MB

  • memory/2704-27-0x00000000776A0000-0x0000000077849000-memory.dmp
    Filesize

    1.7MB

  • memory/2704-28-0x00000000778C6000-0x00000000778C7000-memory.dmp
    Filesize

    4KB

  • memory/2704-29-0x0000000077890000-0x0000000077966000-memory.dmp
    Filesize

    856KB

  • memory/2704-31-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-32-0x00000000018D0000-0x0000000004BB8000-memory.dmp
    Filesize

    50.9MB

  • memory/2704-72-0x0000000077890000-0x0000000077966000-memory.dmp
    Filesize

    856KB

  • memory/2704-73-0x00000000018D0000-0x0000000004BB8000-memory.dmp
    Filesize

    50.9MB

  • memory/2704-75-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-74-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-76-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-77-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-78-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-79-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-80-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-81-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-82-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-83-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-84-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-85-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-86-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-87-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-88-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-89-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-90-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-91-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-92-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-93-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-94-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-95-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-96-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-97-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-98-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-99-0x0000000077890000-0x0000000077966000-memory.dmp
    Filesize

    856KB

  • memory/2704-100-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-101-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-102-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-103-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-104-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-105-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-106-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-107-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-108-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-109-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-112-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-113-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-114-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-115-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-116-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-117-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-118-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-119-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-120-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-121-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-122-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-123-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-124-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-125-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-126-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-127-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB

  • memory/2704-128-0x0000000000860000-0x00000000018C2000-memory.dmp
    Filesize

    16.4MB