stormser | 69fca769a4fefd6bb41365cb2336ef665116135f580baee371b1c953d5ad3c10

General

Target
2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
Size 59KB
Sample260707-thttfahs3w
SHA256 69fca769a4fefd6bb41365cb2336ef665116135f580baee371b1c953d5ad3c10
MD5 77846fbd19635d18be9f0a783dc4e552
SHA1 6d93d1b179d03db0a0d156f6686f311e98bfb8ad
SHA512 fdf03f2d9a70d4b77327f6db4004f24f4f63eb5c91ff09022a42ca2b47c764f53e3c9b57ce56ed30ad33035cae9f39265355567e3d22ef967c9e2e544c385d72
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqw4Y04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLrom4/CFsrd
TLSH
T1864308834BEE9CF2F791117108798AB9927B99D4950EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery stormser persistence worm

Malware Config

Signatures

Family: Stormser, StormDDoS, StormAttack, Stormer
Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.
worm stormser

Detects Stormser aka Storm DDoS and StormAttack 3 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c575-3.dat	family_stormser
behavioral2/files/0x000e00000001c576-6.dat	family_stormser
behavioral2/files/0x000e00000001c578-13.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}\stubpath = "C:\\Windows\\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe"	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}\stubpath = "C:\\Windows\\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe"	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{61A03A9E-7308-4105-A7C2-44337BAB5348}	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{61A03A9E-7308-4105-A7C2-44337BAB5348}\stubpath = "C:\\Windows\\{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe"	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe

Executes dropped EXE 4 IoCs

pid	Process
5532	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
2436	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
5416	{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
124	{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
File created	C:\Windows\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
File created	C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1581435544-3586420778-2104125077-1000\{2E5A36BD-3AFA-4BE1-BD51-CBDADC19D59D}	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	explorer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1220	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	5532	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
Token: SeIncBasePriorityPrivilege	2436	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
Token: SeShutdownPrivilege	2912	explorer.exe
Token: SeCreatePagefilePrivilege	2912	explorer.exe
Token: SeShutdownPrivilege	2912	explorer.exe
Token: SeCreatePagefilePrivilege	2912	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3280	sihost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 5532	1220	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe	89
PID 1220 wrote to memory of 3796	1220	2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe	90
PID 5532 wrote to memory of 2436	5532	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe	91
PID 5532 wrote to memory of 676	5532	{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe	92
PID 2436 wrote to memory of 5416	2436	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe	94
PID 2436 wrote to memory of 2040	2436	{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe	95
PID 3280 wrote to memory of 2912	3280	sihost.exe	100
PID 2912 wrote to memory of 124	2912	explorer.exe	101

C:\Users\Admin\AppData\Local\Temp\2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-07_77846fbd19635d18be9f0a783dc4e552_elex_wannacry.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
  C:\Windows\{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5532
- - C:\Windows\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
    C:\Windows\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2436
  - - C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
      C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:5416
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{E2EB5~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:2040
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{61A03~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:676
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3796

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3280
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
    "C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:124

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe

Path C:\Windows\{10F3C56B-4BE1-4e01-A737-B1EAD86D2C45}.exe
Size 59KB
SHA256 37fdfd177e436e2567c19fa1dc0cb4100915f0a1005f4744842718c69ee6ee71
MD5 3516ee58b5a9298b71a86131563587d0
SHA1 41083ba2198bf81169ee48cdbb9200134a453a75
SHA512 d7f498d4d19b639202de3634ac8639fde78c40d91160300606071d8d0738e051aa70cfd00b860ea5fa54cc8733acb33b7172654e082eb630f50094722765f1c8
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwC0Y04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroR4/CFsrd
TLSH
T1CB4308834BEE9CF2F791117108798AB9927B99D4910EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe

Path C:\Windows\{61A03A9E-7308-4105-A7C2-44337BAB5348}.exe
Size 59KB
SHA256 8e86fc2cd52a03ed9b0cdb1d5fa79cbaaf25340e512694e8bf5b3889df985a76
MD5 ec406147d15b1e50ebf8308d46bb4f1d
SHA1 b5a9bfa9f6a368ae1e9768dba0a59135a7603599
SHA512 94d8e208fb97131903ae2946fca843d3a8226cc232734089b86dd0243c28b0b09c9c18a631955e23a3680df0ef75780f83da55510b2f35dd457c077a40bb71a5
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwGWY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroGc4/CFsrd
TLSH
T13A4309834BEE5CF2F791117108798AB9927B99D4950EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe

Path C:\Windows\{E2EB555E-E651-4e64-A47D-E1F0C52A8AE4}.exe
Size 59KB
SHA256 ae2dcda72b19174d5dc48edadb737f9d36b02f572aba8401c8e14620ecc56b71
MD5 b039d46bc32b0764eb9c6cb2ca6525a1
SHA1 71869ee4b0d9bfb05c9b82be22f33e14eb39db0b
SHA512 4b66a3b82337f6ac80a82bad818d3778943cc6d5dc6c3692bb4a23564424d4563abe9d70d70a4cf20375b30af501df8e8c89c574987333b265157898513ca714
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwtY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLro/4/CFsrd
TLSH
T15C4309834BEE9CF2F791117108794AB9927B99D4950EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads