039004b76a1bc5ac020958256bdcf97f1464398c13b0be2e0d0078f1aee8b3a7

General

Target

lonelyscreenwininstaller.exe
Size

538KB
MD5

64da00119c76c6e1d75f059ffc4a772d
SHA1

ebaebff7db60430cad107d4efc45654d43f98075
SHA256

039004b76a1bc5ac020958256bdcf97f1464398c13b0be2e0d0078f1aee8b3a7
SHA512

d13544aa2ee6060510c0f906e3f174a4ec40878f36193a99d6c527b62fa6a379115e965e272069b0e3f0479df16e6899a096ede37fb0832262c72d3d24f824f3
SSDEEP

12288:AS3yBV888888888888W88888888888pKfXGU69eTutORzK/AA9i6Zub02O9HtFbl:/3yLKfXG6wZ/D9kqtZaTq

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	lonelyscreenwininstaller.tmp

Loads dropped DLL 4 IoCs

pid	Process
2972	lonelyscreenwininstaller.exe
2668	lonelyscreenwininstaller.tmp
2668	lonelyscreenwininstaller.tmp
2668	lonelyscreenwininstaller.tmp

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	lonelyscreenwininstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lonelyscreenwininstaller.tmp

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	lonelyscreenwininstaller.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	lonelyscreenwininstaller.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2668	lonelyscreenwininstaller.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30
PID 2972 wrote to memory of 2668	2972	lonelyscreenwininstaller.exe	30

C:\Users\Admin\AppData\Local\Temp\lonelyscreenwininstaller.exe
"C:\Users\Admin\AppData\Local\Temp\lonelyscreenwininstaller.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\is-P0KA0.tmp\lonelyscreenwininstaller.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-P0KA0.tmp\lonelyscreenwininstaller.tmp" /SL5="$400F4,164153,114176,C:\Users\Admin\AppData\Local\Temp\lonelyscreenwininstaller.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-GR74G.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-GR74G.tmp\isxdl.dll

Filesize
131KB

MD5
16881920cbe9ddb46c3ef29ee405a857

SHA1
0f76cffc2e57cf5c481a8015d203b96638d36ef5

SHA256
59abe5f46020cb56e1079df8dc1145b2033e4b1459ae3d92f637064a6b618bc1

SHA512
f07d1f4133a2ba2bda92fa6f55360fae73e44b97756ee3044f31af5f9e01cda34e7efbb1520c0b5aa2a496edc03ed4fefdc4ad419c1028b1ce6457b69aabeba0

Download Submit
\Users\Admin\AppData\Local\Temp\is-P0KA0.tmp\lonelyscreenwininstaller.tmp

Filesize
1.1MB

MD5
f120c361b527a9d090782300aa8f1ce5

SHA1
ed82441da0dc7a5695ef96839fc2aea0f0c7e376

SHA256
9209a83ac4b0127081327b6e03960e2a4325dbb31f0bba2b56dfb785583f9825

SHA512
60fc418c4296f67b923e1fff4e6034ed41eeba61604b14d560cfd84e7476b59311c6029aee7ee602d8fdc635107855e5c05dcf6a0137c6ba89db7134e63e5555

Download Submit
memory/2668-10-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2668-19-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2668-34-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2668-39-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2972-2-0x0000000000401000-0x0000000000410000-memory.dmp

Filesize
60KB

Download
memory/2972-0-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2972-35-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

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