5c4d8b86d7a87afd63480fff2541c51fd089f4d43905364f2f653095ca024594

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2024, 20:38

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General

Target

install_flash_player.exe
Size

1.8MB
MD5

a281d68f8ae56f0fb3971df7dc6e4e26
SHA1

f1df1ab84b61e7f2c3eea0a959d2115dd001816b
SHA256

9305e0c413dd8045f7a9f62578849f903431ed6d3b2cb1d3ca59b082360d2e00
SHA512

855ddcdc0124ecd350d13d6174d2a6aeeede565cfe3afaa3df015f82049ebb74eb21047f334194626a215e78c6f81b053f83029171b68ba82795f92293e21643
SSDEEP

49152:1ZjrU2pjuIOVIzMiJZLT1tMQ5IrqNUN3PU2wm1kuqE5+vxFLdMk:njr1qIzpJZLT1tbGqNUhM2w5uq5vxFLR

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 16 IoCs

pid	Process
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Macromed\Flash\NPSWF32.dll	install_flash_player.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\NPSWF32_FlashUtil.exe	install_flash_player.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\flashplayer.xpt	install_flash_player.exe
File created	C:\Windows\SysWOW64\Macromed\Flash\uninstall_plugin.exe	install_flash_player.exe
File opened for modification	C:\Windows\SysWOW64\Macromed\Flash\install.log	install_flash_player.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	install_flash_player.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe
2200	install_flash_player.exe

C:\Users\Admin\AppData\Local\Temp\install_flash_player.exe
"C:\Users\Admin\AppData\Local\Temp\install_flash_player.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsd74B5.tmp\NSISArray.dll

Filesize
17KB

MD5
2b8574f6a8f5de9042baa43c069d20ba

SHA1
07959da0c6b7715b51f70f1b0aea1f56ba7a4559

SHA256
38654eef0ee3715f4b1268f4b4176a6b487a0a9e53a27a4ec0b84550ea173564

SHA512
f034f71b6a18ee8024d40acd3c097d95c8fd8e128d75075cc452e71898c1c0322f21b54bd39ca72d053d7261ffbab0c5c1f820602d52fc85806513a6fe317e88

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C:\Users\Admin\AppData\Local\Temp\nsd74B5.tmp\System.dll

Filesize
10KB

MD5
16ae54e23736352739d7ab156b1965ba

SHA1
14f8f04bed2d6adc07565d5c064f6931b128568f

SHA256
c11ffa087c6848f3870e6336d151f0ba6298c0e1e30ccddf2da25a06d36a61fc

SHA512
15dbfcdc5dc34cb20066120045e3250f8df9e50b91de043f2ada33ac0235907d98668e248828a7ed9c75e25dfb5103b7248867530ce73ee36f6a35c30b4afa9f

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C:\Users\Admin\AppData\Local\Temp\nsd74B5.tmp\UserInfo.dll

Filesize
4KB

MD5
68d73a95c628836b67ea5a717d74b38c

SHA1
935372db4a66f9dfd6c938724197787688e141b0

SHA256
21a373c52aaecce52b41aebe6d0224f53760fc3e5c575e821175eee3a1f7f226

SHA512
0e804deab4e647213132add4173c1d2c554c628816f56e21e274a40e185d90254e29c8bfc6fbfdfea2a492d43d23c0bfa4b276252a3f5e1993ab80ff832c4914

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C:\Users\Admin\AppData\Local\Temp\nsd74B5.tmp\nsProcess.dll

Filesize
4KB

MD5
05450face243b3a7472407b999b03a72

SHA1
ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

SHA256
95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

SHA512
f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

Download Submit