Analysis

  • max time kernel
    121s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    01-12-2021 15:18

General

  • Target

    TRANSFER SLIP.exe

  • Size

    488KB

  • MD5

    7013a024b99d8e32f3559117f3a89b9d

  • SHA1

    d0eb94f6f86631be9a82a77508acd8bcf66941b9

  • SHA256

    31ead0a4244133d6fb9387ff1490db83b9fd2dd6666fcd2897c4b1e72c5bf665

  • SHA512

    2f37a1dc97e2a9eefd0b87c8dfa6ab34dcbe61bff9bc5ea351a46c399e230132166ed231910d32178fc96162d5033dfc8373c553de564ec221543a5009df4cf4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.framafilms.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    lister11

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TRANSFER SLIP.exe
    "C:\Users\Admin\AppData\Local\Temp\TRANSFER SLIP.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvaSBtNNzYqZUt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BCF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3932
    • C:\Users\Admin\AppData\Local\Temp\TRANSFER SLIP.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1468

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\TRANSFER SLIP.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • C:\Users\Admin\AppData\Local\Temp\tmp2BCF.tmp
    MD5

    028b41056b65db43907f353520b14689

    SHA1

    7ffdb47676abc5b15a497ed3bd254cdf15f851c8

    SHA256

    76eb01974bed5df2ee4520836261354d54ccfd35251d05ec4dc290b6dc422f7b

    SHA512

    25a034e5a822b4479797282d8b09d92d261b48a3979f18e94a7131c661719b63c5f75d9ccbe7b93f7aed58560d6e2830bc807a77483ad5efad26207154edde53

  • memory/1468-143-0x0000000005510000-0x0000000005A0E000-memory.dmp
    Filesize

    5.0MB

  • memory/1468-140-0x0000000006100000-0x0000000006101000-memory.dmp
    Filesize

    4KB

  • memory/1468-139-0x0000000005660000-0x0000000005661000-memory.dmp
    Filesize

    4KB

  • memory/1468-138-0x0000000005510000-0x0000000005A0E000-memory.dmp
    Filesize

    5.0MB

  • memory/1468-132-0x00000000004374AE-mapping.dmp
  • memory/1468-131-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2376-123-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

  • memory/2376-128-0x0000000009970000-0x00000000099A8000-memory.dmp
    Filesize

    224KB

  • memory/2376-127-0x0000000007320000-0x000000000739D000-memory.dmp
    Filesize

    500KB

  • memory/2376-126-0x00000000050C0000-0x00000000055BE000-memory.dmp
    Filesize

    5.0MB

  • memory/2376-125-0x0000000005420000-0x0000000005425000-memory.dmp
    Filesize

    20KB

  • memory/2376-124-0x0000000005160000-0x0000000005161000-memory.dmp
    Filesize

    4KB

  • memory/2376-118-0x00000000006F0000-0x00000000006F1000-memory.dmp
    Filesize

    4KB

  • memory/2376-122-0x00000000050C0000-0x00000000050C1000-memory.dmp
    Filesize

    4KB

  • memory/2376-121-0x00000000055C0000-0x00000000055C1000-memory.dmp
    Filesize

    4KB

  • memory/2376-120-0x0000000005020000-0x0000000005021000-memory.dmp
    Filesize

    4KB

  • memory/3932-129-0x0000000000000000-mapping.dmp