0d5fa919dfe4d07fbb29a75c0c456fe19649f1e5bfc4726f7bb5518f57434b29

General

Target
2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe
Size 59KB
Sample261017-ezb8dsdb25
SHA256 0d5fa919dfe4d07fbb29a75c0c456fe19649f1e5bfc4726f7bb5518f57434b29
MD5 e5c67e7cdbb51a9ddbdd1fe740504bf8
SHA1 713789bbb8f2ccffb5e85757acc76d05c4d49c5c
SHA512 11e91dcbb5e45a9d93a659860b2e937c16809a70c219c8a80204f5850aff74ce0bea79655f167617c0aad58b40179510556671dbcb5cf036ccddf88b248fd292
SSDEEP 384:MbLwOs8AHsc4sMfwhKQLroo4/Clsrnu5WcnfBYRu:Mvw9816vhKQLroo4/QQ2fBOu
TLSH
T189433A431FDD5CF2FB810175087E8B7986BB59E4C25FBECBAB50CC184836691E83A50A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 3 IoCs

resource	yara_rule
behavioral1/files/0x0007000000024386-2.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/files/0x0008000000024379-5.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/files/0x000800000002438e-10.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Executes dropped EXE 3 IoCs

pid	Process
4476	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
2236	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe
588	m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\m5234DB1Em3715r403ax88E9z039DA84AA1559.exe	2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe
File created	C:\Windows\m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
File created	C:\Windows\m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe

Executes a command shell one-liner 1 TTPs 3 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3804	cmd.exe
2128	cmd.exe
3328	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.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	m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2340	2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe
Token: SeIncBasePriorityPrivilege	4476	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
Token: SeIncBasePriorityPrivilege	2236	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 4476	2340	2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe	96
PID 2340 wrote to memory of 3804	2340	2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe	97
PID 4476 wrote to memory of 2236	4476	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe	98
PID 4476 wrote to memory of 2128	4476	m5234DB1Em3715r403ax88E9z039DA84AA1559.exe	99
PID 2236 wrote to memory of 588	2236	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe	102
PID 2236 wrote to memory of 3328	2236	m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-16_e5c67e7cdbb51a9ddbdd1fe740504bf8_elex_remcos_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
  C:\Windows\m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4476
- - C:\Windows\m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe
    C:\Windows\m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2236
  - - C:\Windows\m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe
      C:\Windows\m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:588
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\M9860A~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:3328
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\M5234D~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:2128
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-1~1.EXE > nul
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:3804

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

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

m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe

Path C:\Windows\m4A02D8CEm6EDAr4fffxB11Fz585C9A6E4C8A9.exe
Size 59KB
SHA256 baa8a30c77fb495a1b803e3b9776b3c08868df39bd4ae11319b750574895cb0d
MD5 544004dbd72c48d1b15d5b0532545001
SHA1 0f6e18b0e6b2b18a9796b23114afaf7b632a5600
SHA512 9ab7707aba4ba3068a4add46ae99582006e0430439e61b3464e46946213bdc04e152874179c4fe42aaf93b5545860a0f937b9b3496c1b5cc311b89557066c564
SSDEEP 384:MbLwOs8AHsc4sMfwhKQLrof4/Clsrnu5WcnfBYRu:Mvw9816vhKQLrof4/QQ2fBOu
TLSH
T149433A430FDD5CF2FB910175087E8B7986BB59D4C25FBE8BAB50CC584836691E83A50A
MD5 SHA1 SHA512 SSDEEP TLSH

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m5234DB1Em3715r403ax88E9z039DA84AA1559.exe

Path C:\Windows\m5234DB1Em3715r403ax88E9z039DA84AA1559.exe
Size 59KB
SHA256 591efb70c3aa5dfa95f31c500129cc75529e029df012d50cab1d92881f430d93
MD5 4e65375c5d7b123225f4cf52b37ec855
SHA1 0c62c42d2bc5b25666790ffa737556f8701274fe
SHA512 25580173e889581de473bac1668713caf447ac53b3f9008f61ec32a1f702af63696e0701000a0f5febe69dae2f616247bf66702d1cd48488c7ab3d146595230b
SSDEEP 384:MbLwOs8AHsc4sMfwhKQLroi4/Clsrnu5WcnfBYRu:Mvw9816vhKQLroi4/QQ2fBOu
TLSH
T1AF434A430FDD5CF2FB810171087E8B7986BB49E4C25FBEDBAB50CC584836691E83A50A
MD5 SHA1 SHA512 SSDEEP TLSH

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m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe

Path C:\Windows\m9860A0BAm0D2Er49e1x9344z29B3B9FB3FE19.exe
Size 59KB
SHA256 cd0a45536f13e50a08697146d49146129573884707a5556798051dbd55992d3f
MD5 08551b3de52a2a26bb0b90920ddef548
SHA1 35035d17bef996c22568037f7848bc125f0c886f
SHA512 fef4861f592e9bbf28a45ce0e63411f62629baac0e0dccda6693a53ac864a14a94ff9c1099743c10a7f970ad85ec6dca2fc57a8fc69aa96e9bd18df2304ceed3
SSDEEP 384:MbLwOs8AHsc4sMfwhKQLroAQ4/Clsrnu5WcnfBYRu:Mvw9816vhKQLroAQ4/QQ2fBOu
TLSH
T1BE434A431FDD5CF2FB910171087E8B7986BB59E4C25FBEDBAB50CC184836691E83A50A
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads