1d85c77ca084345fb0746d17b71c2da66cbd7b87c8c385b05ca205525d058dd8

Analysis

max time kernel
100s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12/09/2024, 05:44

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General

Target

Uninstall.exe
Size

66KB
MD5

86545cc1d7a3fb9fbb64c892a680b52e
SHA1

886126e346fff55cd4f5fed002808bc8a686d8ff
SHA256

4467f1b1c277eb2019e67372b6ef4cfb3dfbae812f82c3fd111f11a92a9c8ba2
SHA512

778691da163c66ff516c633668d1a861af7dd7bb02701d31d0885ea0e009a6744f724df59c0524ef04c2faaac55091d5e0de68acb79ad8489a3d4922d1dd84db
SSDEEP

1536:XKe0DnjRrJav2FnUIRr2vMYBJvqAELVigvHhn1bi+v/5Qmdm:XGD11a8YBJSAI0Q1bmOm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2388	A~NSISu_.exe

Loads dropped DLL 5 IoCs

pid	Process
464	Uninstall.exe
2388	A~NSISu_.exe
2388	A~NSISu_.exe
2388	A~NSISu_.exe
2388	A~NSISu_.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	A~NSISu_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral13/files/0x000d00000001225f-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2388	A~NSISu_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30
PID 464 wrote to memory of 2388	464	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:464
- C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe
  "C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\nsdB31A.tmp\ioSpecial.ini

Filesize
610B

MD5
cd581014a480eaddb0fbff17e4690da1

SHA1
9e35c551a2d3ca68d24662c8e7c7c1d2e01fb209

SHA256
bff9be1f56d079f680d50bd70ea7accbafa497a5d9db23e705dac5d34562839c

SHA512
1df4ad4c0dbcf3eecfe89715f63814154b95383cbe2cdee6e0b9f167fbecf4431710d32d0af5507738d0cab96df8a66337058f0ec55242eb6618df8021a87114

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\Users\Admin\AppData\Local\Temp\A~NSISu_.exe

Filesize
66KB

MD5
86545cc1d7a3fb9fbb64c892a680b52e

SHA1
886126e346fff55cd4f5fed002808bc8a686d8ff

SHA256
4467f1b1c277eb2019e67372b6ef4cfb3dfbae812f82c3fd111f11a92a9c8ba2

SHA512
778691da163c66ff516c633668d1a861af7dd7bb02701d31d0885ea0e009a6744f724df59c0524ef04c2faaac55091d5e0de68acb79ad8489a3d4922d1dd84db

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\Users\Admin\AppData\Local\Temp\nsdB31A.tmp\InstallOptions.dll

Filesize
12KB

MD5
4c7d97d0786ff08b20d0e8315b5fc3cb

SHA1
bb6f475e867b2bf55e4cd214bd4ef68e26d70f6c

SHA256
75e20f4c5eb00e9e5cb610273023e9d2c36392fa3b664c264b736c7cc2d1ac84

SHA512
f37093fd5cdda74d8f7376c60a05b442f884e9d370347c7c39d84eca88f23fbea6221da2e57197acd78c817a74703c49fb28b89d41c3e34817cc9301b0b6485a

Download Submit