5708b13fe95ed18cda6f92ab01b4e3ce54f934e6c56c29250ad84d4a813eb855

General

Target

2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe
Size

5.7MB
MD5

7059861a4bd9f490f939f60569d303e8
SHA1

a9c013fb63584094224021f02efad10ccedb9f02
SHA256

5708b13fe95ed18cda6f92ab01b4e3ce54f934e6c56c29250ad84d4a813eb855
SHA512

4b7079da1d056f4a50cd0b418b836a22ebc92c5e9c07f0bcf64e2e276a678ac10122862fc0748b955547993251e2b856f0228ba7746ce019ad5f441c8dd87d25
SSDEEP

98304:8JIK5QXM3FLmpo/QkZsLc01hGst+tu0BQAbuiUReUZs+cXxF8gLsVMxKobBRBr1l:8O8FLj/wK8EuPReUZIFmIF

Score

4^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2236	{62685527-4990-422C-A734-354080519AB7}.exe

Loads dropped DLL 1 IoCs

pid	Process
1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main	{62685527-4990-422C-A734-354080519AB7}.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	{62685527-4990-422C-A734-354080519AB7}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	{62685527-4990-422C-A734-354080519AB7}.exe

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\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	{62685527-4990-422C-A734-354080519AB7}.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 04000000010000001000000079e4a9840d7d3a96d7c04fe2434c892e0f0000000100000014000000b34ddd372ed92e8f2abfbb9e20a9d31f204f194b090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b0601050507030814000000010000001400000003de503556d14cbb66f0a3e21b1bc397b23dd1550b00000001000000120000004400690067006900430065007200740000001d000000010000001000000059779e39e21a2e3dfced6857ed5c5fd9030000000100000014000000a8985d3a65e5e5c4b2d7d66d40c6dd2fb19c54361900000001000000100000000f3a0527d242de2dc98e5cfcb1e991ee2000000001000000b3030000308203af30820297a0030201020210083be056904246b1a1756ac95991c74a300d06092a864886f70d01010505003061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a3061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100e23be11172dea8a4d3a357aa50a28f0b7790c9a2a5ee12ce965b010920cc0193a74e30b753f743c46900579de28d22dd870640008109cece1b83bfdfcd3b7146e2d666c705b37627168f7b9e1e957deeb748a308dad6af7a0c3906657f4a5d1fbc17f8abbeee28d7747f7a78995985686e5c23324bbf4ec0e85a6de370bf7710bffc01f685d9a844105832a97518d5d1a2be47e2276af49a33f84908608bd45fb43a84bfa1aa4a4c7d3ecf4f5f6c765ea04b37919edc22e66dce141a8e6acbfecdb3146417c75b299e32bff2eefad30b42d4abb74132da0cd4eff881d5bb8d583fb51be84928a270da3104ddf7b216f24c0a4e07a8ed4a3d5eb57fa390c3af270203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e0416041403de503556d14cbb66f0a3e21b1bc397b23dd155301f0603551d2304183016801403de503556d14cbb66f0a3e21b1bc397b23dd155300d06092a864886f70d01010505000382010100cb9c37aa4813120afadd449c4f52b0f4dfae04f5797908a32418fc4b2b84c02db9d5c7fef4c11f58cbb86d9c7a74e79829ab11b5e370a0a1cd4c8899938c9170e2ab0f1cbe93a9ff63d5e40760d3a3bf9d5b09f1d58ee353f48e63fa3fa7dbb466df6266d6d16e418df22db5ea774a9f9d58e22b59c04023ed2d2882453e7954922698e08048a837eff0d6796016deace80ecd6eac4417382f49dae1453e2ab93653cf3a5006f72ee8c457496c612118d504ad783c2c3a806ba7ebaf1514e9d889c1b9386ce2916c8aff64b977255730c01b24a3e1dce9df477cb5b424080530ec2dbd0bbf45bf50b9a9f3eb980112adc888c698345f8d0a3cc6e9d595956dde	{62685527-4990-422C-A734-354080519AB7}.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2236	{62685527-4990-422C-A734-354080519AB7}.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2236	{62685527-4990-422C-A734-354080519AB7}.exe
2236	{62685527-4990-422C-A734-354080519AB7}.exe
2236	{62685527-4990-422C-A734-354080519AB7}.exe
2236	{62685527-4990-422C-A734-354080519AB7}.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28
PID 1924 wrote to memory of 2236	1924	2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_7059861a4bd9f490f939f60569d303e8_avoslocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\{1F88731F-A85B-4E77-8CB0-8F536AC179C5}\{62685527-4990-422C-A734-354080519AB7}.exe
  "C:\Users\Admin\AppData\Local\Temp\{1F88731F-A85B-4E77-8CB0-8F536AC179C5}\{62685527-4990-422C-A734-354080519AB7}.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Internet Explorer settings
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\D0051A50-1942-11EF-AE43-7A4B76010719\SELECT_LANG_PAGE.html

Filesize
7KB

MD5
9330bfb32d9ac1ed263716cb34cd9844

SHA1
db2898900fcddc3011275468c9d6285b0ebeb7e7

SHA256
e715105723b422d9e8a22b07f2170b0e786cf7cb202d0fa89770488fc3ed39a7

SHA512
cb72fbf519ad730e2e5ff889fe025aa298eb911e3ade8d68100592c7fb03c1ce98c0843ab8bb3aaabf239c3b8946627b17e0495165fb0a30e59db17ea7fab4f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\D0051A50-1942-11EF-AE43-7A4B76010719\UPDATE_DOWNLOADER_PAGE.html

Filesize
1KB

MD5
10194dfb69bd057c6ab5f9f4c816ef1d

SHA1
0d33ff919d7e5d072bb7a99a9117bdc4cf112139

SHA256
d1e46e0347a6695f52cc0adb78e9e67fdcbc4bab80f2a2fa7c0c6ee03291e193

SHA512
cad5965c10239600cc43b17172601d1fde0503a0e7af571a3ca0fad858555159be2cae91bf0ba24042814743bfa554024dd5b274ad71322f1f244fdfd4d7e0b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\{1F88731F-A85B-4E77-8CB0-8F536AC179C5}\{62685527-4990-422C-A734-354080519AB7}.exe

Filesize
5.1MB

MD5
e3749589ff0df536b62f1f82a1102aa1

SHA1
9d03b3641d1be1d03e9db42fea076adc8bbb0c46

SHA256
bf090cfa02ccb3fb1e0ac8b8ded59573c122b5a6ba7866dbba4897ba75e8a269

SHA512
803380a247e57b236fee5d5d4cefee1f6cf80f56b56f7b68cd591159a639e73f047c799a901b1eeb82b5bc28bd8ec69c64af6726326e38a0808f69837a003157

Download Submit
memory/1924-40-0x00000000008B0000-0x0000000000E64000-memory.dmp

Filesize
5.7MB

Download
memory/2236-41-0x0000000001010000-0x0000000001530000-memory.dmp

Filesize
5.1MB

Download
memory/2236-77-0x0000000001010000-0x0000000001530000-memory.dmp

Filesize
5.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads