e5a367afb935212c2de61876a56ebfb9d00346161b60dfdc7d95cdf722c08e72

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 13:11

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General

Target

712ecb2a63425eb57515e875a65f26d3.exe
Size

68KB
MD5

712ecb2a63425eb57515e875a65f26d3
SHA1

6911f87748180e0536fe62a0bd36ee455a270ad9
SHA256

e5a367afb935212c2de61876a56ebfb9d00346161b60dfdc7d95cdf722c08e72
SHA512

f98d140c243a765046ac3803bf32b69b3ed4313424b9dcd3cefa1cc4e6020ff455ceae8e851b1a094e79f73c8e3855aa7d4b8c4d3ac6fbbde8fcb882b4c9e277
SSDEEP

1536:r1BvK2hM46fGBCzSfNNI6yx8Hoh3eypmrYbwWoq:r1BvK7pmCzSlNILr7mrlq

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2620	BCSSync.exe
2596	BCSSync.exe

Loads dropped DLL 3 IoCs

pid	Process
2392	712ecb2a63425eb57515e875a65f26d3.exe
2392	712ecb2a63425eb57515e875a65f26d3.exe
2620	BCSSync.exe

Unexpected DNS network traffic destination 10 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2240 set thread context of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2620 set thread context of 2596	2620	BCSSync.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	712ecb2a63425eb57515e875a65f26d3.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	712ecb2a63425eb57515e875a65f26d3.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2240 wrote to memory of 2392	2240	712ecb2a63425eb57515e875a65f26d3.exe	19
PID 2392 wrote to memory of 2620	2392	712ecb2a63425eb57515e875a65f26d3.exe	29
PID 2392 wrote to memory of 2620	2392	712ecb2a63425eb57515e875a65f26d3.exe	29
PID 2392 wrote to memory of 2620	2392	712ecb2a63425eb57515e875a65f26d3.exe	29
PID 2392 wrote to memory of 2620	2392	712ecb2a63425eb57515e875a65f26d3.exe	29
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2620 wrote to memory of 2596	2620	BCSSync.exe	30
PID 2596 wrote to memory of 2468	2596	BCSSync.exe	31
PID 2596 wrote to memory of 2468	2596	BCSSync.exe	31
PID 2596 wrote to memory of 2468	2596	BCSSync.exe	31
PID 2596 wrote to memory of 2468	2596	BCSSync.exe	31

C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe
"C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe
  "C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
    "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
      "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2596
    - - C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe
        
        "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe" "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\712ecb2a63425eb57515e875a65f26d3.exe
        5⤵
        
        PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2392-12-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-14-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2392-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2392-44-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2596-43-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2596-47-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download