a8a547342f2caa079583648c420be2f8a9405fb8a6d7e4093878e417974e6811

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
29/06/2026, 04:38

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General

Target
2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe
Size 590KB
Sample260629-e9tkesev3n
SHA256 a8a547342f2caa079583648c420be2f8a9405fb8a6d7e4093878e417974e6811
MD5 9cbc3a417160ad3e606ec4d132716466
SHA1 01395972385524e6734cdfa8456315295f5bbed9
SHA512 058a4c34e1009470ad7a17115f7cd18522377a4d47a7e602a481d03311189338bc07137901737915fa9e89cc55b465d42d16a9a292b6edf7238749db25ab04c1
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAw:aqzw2wsEDbZ67fpLyUB/5qLl/
TLSH
T17AD4AD13B2E4C855E1A22A72CC7667F0DEF5BEE4D935861F5F803A0D2933E00A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit discovery persistence spyware stealer upx

Malware Config

Signatures

Custom signature

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral1/memory/1884-17-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1884-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1884-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1884-18-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1884-21-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1884-23-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/4136-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral1/memory/4136-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral1/files/0x000f00000002445c-4.dat	UPX
behavioral1/memory/4608-11-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4608	pimmac.exe

Executes dropped EXE 2 IoCs

pid	Process
4608	pimmac.exe
1884	ybmlm.exe

Loads dropped DLL 1 IoCs

pid	Process
1884	ybmlm.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\sqtdo\\ybmlm.exe \"c:\\Program Files\\sqtdo\\ybmlm.dll\",DoAddToFavDlg"	ybmlm.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\b:	ybmlm.exe
File opened (read-only)	\??\h:	ybmlm.exe
File opened (read-only)	\??\r:	ybmlm.exe
File opened (read-only)	\??\t:	ybmlm.exe
File opened (read-only)	\??\y:	ybmlm.exe
File opened (read-only)	\??\a:	ybmlm.exe
File opened (read-only)	\??\i:	ybmlm.exe
File opened (read-only)	\??\j:	ybmlm.exe
File opened (read-only)	\??\k:	ybmlm.exe
File opened (read-only)	\??\p:	ybmlm.exe
File opened (read-only)	\??\v:	ybmlm.exe
File opened (read-only)	\??\x:	ybmlm.exe
File opened (read-only)	\??\z:	ybmlm.exe
File opened (read-only)	\??\e:	ybmlm.exe
File opened (read-only)	\??\n:	ybmlm.exe
File opened (read-only)	\??\o:	ybmlm.exe
File opened (read-only)	\??\s:	ybmlm.exe
File opened (read-only)	\??\u:	ybmlm.exe
File opened (read-only)	\??\q:	ybmlm.exe
File opened (read-only)	\??\g:	ybmlm.exe
File opened (read-only)	\??\l:	ybmlm.exe
File opened (read-only)	\??\m:	ybmlm.exe
File opened (read-only)	\??\w:	ybmlm.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	ybmlm.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/4136-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral1/memory/4136-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral1/files/0x000f00000002445c-4.dat	upx
behavioral1/memory/4608-11-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\sqtdo	pimmac.exe
File created	\??\c:\Program Files\sqtdo\ybmlm.dll	pimmac.exe
File created	\??\c:\Program Files\sqtdo\ybmlm.exe	pimmac.exe
File opened for modification	\??\c:\Program Files\sqtdo\ybmlm.exe	pimmac.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pimmac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ybmlm.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4580	cmd.exe
1684	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ybmlm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ybmlm.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1684	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1884	ybmlm.exe
1884	ybmlm.exe
1884	ybmlm.exe
1884	ybmlm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1884	ybmlm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4136	2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe
4608	pimmac.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 4580	4136	2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe	85
PID 4580 wrote to memory of 1684	4580	cmd.exe	87
PID 4580 wrote to memory of 4608	4580	cmd.exe	88
PID 4608 wrote to memory of 1884	4608	pimmac.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4136
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\pimmac.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4580
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1684
- - C:\Users\Admin\AppData\Local\Temp\pimmac.exe
    C:\Users\Admin\AppData\Local\Temp\\pimmac.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-27_9cbc3a417160ad3e606ec4d132716466_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4608
  - - \??\c:\Program Files\sqtdo\ybmlm.exe
      "c:\Program Files\sqtdo\ybmlm.exe" "c:\Program Files\sqtdo\ybmlm.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\pimmac.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1884

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

ybmlm.exe

Path C:\Program Files\sqtdo\ybmlm.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

pimmac.exe

Path C:\Users\Admin\AppData\Local\Temp\pimmac.exe
Size 590KB
SHA256 7ead9c254582a7b43cf76c290e29ba59846a425891841705c3b38dfe8fb3c6ce
MD5 b38d628892df27940294c9e0da513633
SHA1 9479258d888fea693a5e862856e3698e7cf0cfc7
SHA512 6269a294ac08516a332bb4988474d775698e224c0f43c6fd2b3e5fb8ca2d0827afafc5bb7512ae8f8a488f02f504512a7cbcece361ff8192d64785807dd71750
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAR:aqzw2wsEDbZ67fpLyUB/5qLlm
TLSH
T170D4AD13B2E4C855E1A22A72CC7667F0DEF5BEE4D935861F5F803A0D2933E00A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ybmlm.dll

Path \??\c:\Program Files\sqtdo\ybmlm.dll
Size 171KB
SHA256 d52d4cb6dd4ad578c6aabddd8cda14e78ca9cafb84acb3516f9d694afaee60da
MD5 4dc5e66bb3d9f5f4b8838c52f9067ccd
SHA1 feb7070dfe145860be0428ca78ac9102d6cda659
SHA512 6d167967fe62624b24bbb22d65c1e42a62418b82f6de0ca3eda3474e130098e7c25ec18e4bbeb42f4d8eb2b43622fb6f05621ac62ded04a17eca84a7b121a166
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7g:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMk
TLSH
T1570412B0F3F98B59F0A716B70831597CC97639826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1884-17-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1884-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1884-15-0x0000000001300000-0x0000000001302000-memory.dmp

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memory/1884-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1884-18-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1884-19-0x0000000001300000-0x0000000001302000-memory.dmp

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memory/1884-21-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1884-23-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4136-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/4136-0-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/4608-11-0x0000000000400000-0x000000000048B000-memory.dmp

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