a9330a485931d9407c0e7cfec1b6bb72698a03737e312ca42cb867dfede97fa4

Analysis

max time kernel
40s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-08-2022 03:01

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General

Target

boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe
Size

511KB
MD5

7b3c8a33a8607c3b1cabd24ba83a9876
SHA1

70a9605990488445f8ae5836b5c92819f93d6355
SHA256

2d1d71f05b0ab72e85c649e04f4c78f3007741649b9910be4266fde74504456d
SHA512

3c71c27fa650c64a1b10220c5bdc42031a3426745f9a4bfbd128fd4dd7e31098c1049884e977a9b2f52f772229fc94ba44781525cade627ce562a6b663cc6c6c
SSDEEP

6144:IeiRWoGu79mhdLRYxJbFP23zKx8t52aXbJdXv+4wNaS:F/oOhdLEwjKx8t52aLJd/3wNaS

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

word.exe

pid process

1556 word.exe

pid	process
1556	word.exe

Loads dropped DLL 2 IoCs

Processes:

boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe

pid	process
1416	boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe
1416	boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

word.exe

pid process

1556 word.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1556	word.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe

description	pid	process	target process
PID 1416 wrote to memory of 1556	1416	boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe	word.exe
PID 1416 wrote to memory of 1556	1416	boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe	word.exe
PID 1416 wrote to memory of 1556	1416	boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe	word.exe

C:\Users\Admin\AppData\Local\Temp\boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe
"C:\Users\Admin\AppData\Local\Temp\boos直聘-李笙-业务代表岗位-清华大学-工商管理专业.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1416

C:\programdata\word.exe
"C:\programdata\word.exe"
2⤵
- Executes dropped EXE
- Suspicious use of NtCreateThreadExHideFromDebugger
PID:1556

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\word.exe
Filesize
273KB

MD5
773295382ac480e8db8fb2c1efad4cda

SHA1
ae7c78724b8e0c946dd12d2ebc61f0f11c911067

SHA256
3823a537e612fe6e0453394242999cabb6d5070d49da22950102490d59fc6681

SHA512
c0116b326fe1a4adf4b0abcccf1cf14aa0ad3f6762c61650002e524c57d0af296dfbb575eca317cbe8ac144e50fd8d198ef4a62bcb49e47cbd4da26813a3c288

Download Submit
\ProgramData\word.exe
Filesize
273KB

MD5
773295382ac480e8db8fb2c1efad4cda

SHA1
ae7c78724b8e0c946dd12d2ebc61f0f11c911067

SHA256
3823a537e612fe6e0453394242999cabb6d5070d49da22950102490d59fc6681

SHA512
c0116b326fe1a4adf4b0abcccf1cf14aa0ad3f6762c61650002e524c57d0af296dfbb575eca317cbe8ac144e50fd8d198ef4a62bcb49e47cbd4da26813a3c288

Download Submit
\ProgramData\word.exe
Filesize
273KB

MD5
773295382ac480e8db8fb2c1efad4cda

SHA1
ae7c78724b8e0c946dd12d2ebc61f0f11c911067

SHA256
3823a537e612fe6e0453394242999cabb6d5070d49da22950102490d59fc6681

SHA512
c0116b326fe1a4adf4b0abcccf1cf14aa0ad3f6762c61650002e524c57d0af296dfbb575eca317cbe8ac144e50fd8d198ef4a62bcb49e47cbd4da26813a3c288

Download Submit
memory/1416-54-0x000007FEFB9F1000-0x000007FEFB9F3000-memory.dmp

Filesize
8KB

Download
memory/1556-57-0x0000000000000000-mapping.dmp

Download