cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71

Analysis

max time kernel
136s
max time network
138s
platform
windows7_x64
resource
win7v200722
submitted
12/10/2020, 14:15

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General

Target

cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe
Size

206KB
MD5

e883226589b32952d07e057c468ffbb8
SHA1

3e424264572d0d986fa3ae49c98f566ba7d8e2d7
SHA256

cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71
SHA512

9520111d2cab4c760ee6a91148265dc3fbd65f37688ed8a9aeed543fe99a565c4fe47f22abbf067d2d81ddd4cc69106a9fdba823d3a1af80882bce61dd312487

Score

8^/10

Malware Config

Signatures

Blacklisted process makes network request 2 IoCs

flow	pid	Process
7	324	rundll32.exe
8	612	rundll32.exe

Executes dropped EXE 4 IoCs

pid	Process
1580	skdbn.exe
468	skdbn.exe
1440	skdbn.exe
1236	skdbn.exe

Loads dropped DLL 10 IoCs

pid	Process
776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe
776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe
324	rundll32.exe
324	rundll32.exe
324	rundll32.exe
324	rundll32.exe
612	rundll32.exe
612	rundll32.exe
612	rundll32.exe
612	rundll32.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
324	rundll32.exe
324	rundll32.exe
324	rundll32.exe
324	rundll32.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 1580	776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe	28
PID 776 wrote to memory of 1580	776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe	28
PID 776 wrote to memory of 1580	776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe	28
PID 776 wrote to memory of 1580	776	cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe	28
PID 1580 wrote to memory of 1992	1580	skdbn.exe	29
PID 1580 wrote to memory of 1992	1580	skdbn.exe	29
PID 1580 wrote to memory of 1992	1580	skdbn.exe	29
PID 1580 wrote to memory of 1992	1580	skdbn.exe	29
PID 1600 wrote to memory of 468	1600	taskeng.exe	33
PID 1600 wrote to memory of 468	1600	taskeng.exe	33
PID 1600 wrote to memory of 468	1600	taskeng.exe	33
PID 1600 wrote to memory of 468	1600	taskeng.exe	33
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 324	1580	skdbn.exe	35
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1580 wrote to memory of 612	1580	skdbn.exe	36
PID 1600 wrote to memory of 1440	1600	taskeng.exe	37
PID 1600 wrote to memory of 1440	1600	taskeng.exe	37
PID 1600 wrote to memory of 1440	1600	taskeng.exe	37
PID 1600 wrote to memory of 1440	1600	taskeng.exe	37
PID 1600 wrote to memory of 1236	1600	taskeng.exe	38
PID 1600 wrote to memory of 1236	1600	taskeng.exe	38
PID 1600 wrote to memory of 1236	1600	taskeng.exe	38
PID 1600 wrote to memory of 1236	1600	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe
"C:\Users\Admin\AppData\Local\Temp\cea813cbef6581e0c95aacb2e747f5951325444b941e801164154917a17bfe71.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:776
- C:\ProgramData\a76878f016\skdbn.exe
  "C:\ProgramData\a76878f016\skdbn.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN skdbn.exe /TR "C:\ProgramData\a76878f016\skdbn.exe" /F
    3⤵
    - Creates scheduled task(s)
    PID:1992
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\ProgramData\a76878f016\cred.dll, Main
    3⤵
    - Blacklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:324
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\ProgramData\a76878f016\scr.dll, Main
    3⤵
    - Blacklisted process makes network request
    - Loads dropped DLL
    PID:612

C:\Windows\system32\taskeng.exe
taskeng.exe {3F675656-26D2-49F6-A13B-D672273DA121} S-1-5-21-403932158-3302036622-1224131197-1000:ELJKIHEZ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1600
- C:\ProgramData\a76878f016\skdbn.exe
  C:\ProgramData\a76878f016\skdbn.exe
  2⤵
  - Executes dropped EXE
  PID:468
- C:\ProgramData\a76878f016\skdbn.exe
  C:\ProgramData\a76878f016\skdbn.exe
  2⤵
  - Executes dropped EXE
  PID:1440
- C:\ProgramData\a76878f016\skdbn.exe
  C:\ProgramData\a76878f016\skdbn.exe
  2⤵
  - Executes dropped EXE
  PID:1236

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/468-14-0x000000000335B000-0x000000000335C000-memory.dmp

Filesize
4KB

Download
memory/468-15-0x0000000004B60000-0x0000000004B71000-memory.dmp

Filesize
68KB

Download
memory/776-1-0x0000000004CC0000-0x0000000004CD1000-memory.dmp

Filesize
68KB

Download
memory/776-0-0x000000000333B000-0x000000000333C000-memory.dmp

Filesize
4KB

Download
memory/1124-10-0x000007FEF68A0000-0x000007FEF6B1A000-memory.dmp

Filesize
2.5MB

Download
memory/1236-37-0x0000000004A70000-0x0000000004A81000-memory.dmp

Filesize
68KB

Download
memory/1236-36-0x00000000002CB000-0x00000000002CC000-memory.dmp

Filesize
4KB

Download
memory/1440-32-0x0000000004A30000-0x0000000004A41000-memory.dmp

Filesize
68KB

Download
memory/1440-31-0x00000000033BB000-0x00000000033BC000-memory.dmp

Filesize
4KB

Download
memory/1580-6-0x000000000336B000-0x000000000336C000-memory.dmp

Filesize
4KB

Download
memory/1580-7-0x0000000004B70000-0x0000000004B81000-memory.dmp

Filesize
68KB

Download