33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a

Analysis

max time kernel
91s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2023, 14:00

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General

Target

33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe
Size

1.8MB
MD5

93d72e8488c9e0d46eafbc0c4e4d587b
SHA1

4cff0799e86f0f0bdfe2679fffa348c318be8e0d
SHA256

33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a
SHA512

74b01081326194c9f95bd69ff777e6df6ca9cfcf9e4e6f65fb8ba62a7d542ce7a9d21da5e791bf2430d4524d3afb35a55026e384cc6543c8fafe25b976d3fa73
SSDEEP

49152:3yy5PZx+dW5BvZelG955YIby5+K+VcvUU:B5SdWDvZel05Lbykfuv

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
480	ntlhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe"	33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	25	Go-http-client/1.1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 480	2496	33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe	87
PID 2496 wrote to memory of 480	2496	33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe	87
PID 2496 wrote to memory of 480	2496	33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe	87

C:\Users\Admin\AppData\Local\Temp\33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe
"C:\Users\Admin\AppData\Local\Temp\33ee5b851a561fdd66890831f2702d20cadebeff8e7200b1092e28fe5bb5300a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
  2⤵
  - Executes dropped EXE
  PID:480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe

Filesize
744.8MB

MD5
768bf515685ca0420a4a2c7e4aa62e37

SHA1
f6d380b1311561033a927d5336eb744e6aba9733

SHA256
a27aaa02ea6ffa4c2928502adf5a1cd01418b76752a55d80d77688afbdae488a

SHA512
6c5c8e7b896c66cfc228d7dec09f352938aaa36fa90cabae88a23b11a7103bb6918a4fb62692ab68c8102d639ab318bb061a8b1dce4b55d3c31f27e55170edf0

Download Submit
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe

Filesize
744.8MB

MD5
768bf515685ca0420a4a2c7e4aa62e37

SHA1
f6d380b1311561033a927d5336eb744e6aba9733

SHA256
a27aaa02ea6ffa4c2928502adf5a1cd01418b76752a55d80d77688afbdae488a

SHA512
6c5c8e7b896c66cfc228d7dec09f352938aaa36fa90cabae88a23b11a7103bb6918a4fb62692ab68c8102d639ab318bb061a8b1dce4b55d3c31f27e55170edf0

Download Submit
memory/480-139-0x00000000025B1000-0x000000000275B000-memory.dmp

Filesize
1.7MB

Download
memory/480-140-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/480-141-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/2496-132-0x00000000025FC000-0x00000000027A6000-memory.dmp

Filesize
1.7MB

Download
memory/2496-133-0x00000000027B0000-0x0000000002B80000-memory.dmp

Filesize
3.8MB

Download
memory/2496-134-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download
memory/2496-138-0x0000000000400000-0x0000000000803000-memory.dmp

Filesize
4.0MB

Download