2475803ce7343c6188ecdb96ebbc48f9c0c2056a068960d5b887970d242452cf

Analysis

max time kernel
137s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2023, 17:11

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General

Target

NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
Size

262KB
MD5

eef60ee1a93c5af10c227eb1e9a72c30
SHA1

733d54230a133e7591568b52221d5ab8cade77c7
SHA256

2475803ce7343c6188ecdb96ebbc48f9c0c2056a068960d5b887970d242452cf
SHA512

484bab45b54cb4acc666c0705e5f80a3336a9730e3c21a8bd2618442ce472f630fdc55d28801b90706734bd24a426d4078545e303b88975ee6073f738de42e97
SSDEEP

6144:SyiMJ6f8jLi2CMw5w31Lx4tiqn/PlVGSu4RiNdpxPtOS:SyiMYs8UFLxYNQWRap/d

Score

10^/10

dropper persistence trojan

Malware Config

Signatures

Malware Backdoor - Berbew 1 IoCs

Berbew is a malware infection classified as a 'backdoor' Trojan. This malicious program's primary function is to cause chain infections - it can download/install additional malware such as other Trojans, ransomware, and cryptominers.

persistence dropper trojan

resource	yara_rule
behavioral2/files/0x0006000000022cac-12.dat	family_berbew

Deletes itself 1 IoCs

pid	Process
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.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/Job

T1053

pid	Process
4560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4032	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4032	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 1876	4032	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	90
PID 4032 wrote to memory of 1876	4032	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	90
PID 4032 wrote to memory of 1876	4032	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	90
PID 1876 wrote to memory of 4560	1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	92
PID 1876 wrote to memory of 4560	1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	92
PID 1876 wrote to memory of 4560	1876	NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe	92

C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
  C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe" /TN Google_Trk_Updater /F
    3⤵
    - Creates scheduled task(s)
    PID:4560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\NEAS.eef60ee1a93c5af10c227eb1e9a72c30_JC.exe

Filesize
262KB

MD5
8fa8b54c3325b2c9c009eaad6663fc00

SHA1
9c224c28a03e636d8505343cec17f8869dd732c1

SHA256
e8f80fae5ef23647f651db3e4164c71fa67ec950c4ebe1760dcc3f2cb0bd7b45

SHA512
6ecba20343cf5966bbe35b44ff03155bd6e11d935949d809898b6091f059d3045b2cf8ffa13b09c8797d19dec9aa71101ce10743e6b1326a0aab8b6637cf44ad

Download Submit
memory/1876-13-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1876-14-0x00000000016A0000-0x0000000001758000-memory.dmp

Filesize
736KB

Download
memory/1876-15-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1876-20-0x0000000004F60000-0x0000000004FC6000-memory.dmp

Filesize
408KB

Download
memory/1876-21-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1876-27-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4032-0-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4032-1-0x0000000000140000-0x00000000001F8000-memory.dmp

Filesize
736KB

Download
memory/4032-2-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4032-11-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download