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Overview
overview
8Static
static
7office2019...us.exe
windows7-x64
1office2019...us.exe
windows10-2004-x64
1office2019...za.dll
windows7-x64
3office2019...za.dll
windows10-2004-x64
3office2019...za.exe
windows7-x64
1office2019...za.exe
windows10-2004-x64
1office2019...xa.dll
windows7-x64
3office2019...xa.dll
windows10-2004-x64
3office2019...rm.exe
windows7-x64
7office2019...rm.exe
windows10-2004-x64
7office2019...2c.exe
windows7-x64
1office2019...2c.exe
windows10-2004-x64
1office2019...71.dll
windows7-x64
1office2019...71.dll
windows10-2004-x64
1office2019...id.dll
windows7-x64
1office2019...id.dll
windows10-2004-x64
1office2019...ne.dll
windows7-x64
7office2019...ne.dll
windows10-2004-x64
7office2019...71.dll
windows7-x64
3office2019...71.dll
windows10-2004-x64
3office2019...71.dll
windows7-x64
3office2019...71.dll
windows10-2004-x64
3office2019...dl.dll
windows7-x64
7office2019...dl.dll
windows10-2004-x64
7office2019...b1.dll
windows7-x64
7office2019...b1.dll
windows10-2004-x64
7office2019...PP.vbs
windows7-x64
8office2019...PP.vbs
windows10-2004-x64
8office2019...cn.vbs
windows7-x64
8office2019...cn.vbs
windows10-2004-x64
8office2019...RM.exe
windows7-x64
1office2019...RM.exe
windows10-2004-x64
1Analysis
-
max time kernel
140s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
13/05/2024, 11:56
Behavioral task
behavioral1
Sample
office2019pjb_9435/office2019pjb/OTool/Office Tool Plus.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
office2019pjb_9435/office2019pjb/OTool/Office Tool Plus.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7za.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7za.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7za.exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7za.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7zxa.dll
Resource
win7-20240215-en
Behavioral task
behavioral8
Sample
office2019pjb_9435/office2019pjb/OTool/files/7-zip/7zxa.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral9
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/MiniThunderPlatform.exe
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/MiniThunderPlatform.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/aria2c.exe
Resource
win7-20231129-en
Behavioral task
behavioral12
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/aria2c.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral13
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/atl71.dll
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/atl71.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/dl_peer_id.dll
Resource
win7-20240419-en
Behavioral task
behavioral16
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/dl_peer_id.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral17
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/download_engine.dll
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/download_engine.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral19
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/msvcp71.dll
Resource
win7-20240419-en
Behavioral task
behavioral20
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/msvcp71.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/msvcr71.dll
Resource
win7-20240508-en
Behavioral task
behavioral22
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/msvcr71.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral23
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/xldl.dll
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/xldl.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral25
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/zlib1.dll
Resource
win7-20231129-en
Behavioral task
behavioral26
Sample
office2019pjb_9435/office2019pjb/OTool/files/Thunder/zlib1.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral27
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPP.vbs
Resource
win7-20240221-en
Behavioral task
behavioral28
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPP.vbs
Resource
win10v2004-20240508-en
Behavioral task
behavioral29
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPP.zh-cn.vbs
Resource
win7-20240221-en
Behavioral task
behavioral30
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPP.zh-cn.vbs
Resource
win10v2004-20240226-en
Behavioral task
behavioral31
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPPREARM.exe
Resource
win7-20240221-en
Behavioral task
behavioral32
Sample
office2019pjb_9435/office2019pjb/OTool/files/activate/OSPPREARM.exe
Resource
win10v2004-20240508-en
General
-
Target
office2019pjb_9435/office2019pjb/OTool/files/Thunder/xldl.dll
-
Size
106KB
-
MD5
b700bd2daf84e4dbbcad96221a772d6b
-
SHA1
b57cab2d8cfc733d6aacc61a39ce5564db0f7b3b
-
SHA256
63ae9dd4a504261591f06bd9457d07629155241df615bd46a0fb48e76c5e9d56
-
SHA512
d573e7b2863053e2b4d81a4a89dcbee83fc079403ab36c54e3e0904a3b5d61d1aff0b8bb32d164e496f8425bf8e40e803480c694506e6e156434b8350b736a10
-
SSDEEP
3072:/WcKtZ5jVYBrJfbUfCoIydGHoqXUWIoutMsvmd:/WPnfYBrJWIydGHotoSPC
Malware Config
Signatures
-
resource yara_rule behavioral23/memory/3048-0-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral23/memory/3048-1-0x0000000010000000-0x000000001004D000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 2948 3048 WerFault.exe 28 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 1952 wrote to memory of 3048 1952 rundll32.exe 28 PID 3048 wrote to memory of 2948 3048 rundll32.exe 29 PID 3048 wrote to memory of 2948 3048 rundll32.exe 29 PID 3048 wrote to memory of 2948 3048 rundll32.exe 29 PID 3048 wrote to memory of 2948 3048 rundll32.exe 29
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\office2019pjb_9435\office2019pjb\OTool\files\Thunder\xldl.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\office2019pjb_9435\office2019pjb\OTool\files\Thunder\xldl.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 2323⤵
- Program crash
PID:2948
-
-