98bc2f0922075ab2d76ac9d323595bfeb28870f9041367ad1408425d57648340

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/09/2026, 23:05

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General

Target
jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
Size 53KB
Sample260920-225daadg92
SHA256 98bc2f0922075ab2d76ac9d323595bfeb28870f9041367ad1408425d57648340
MD5 29cdea794739bcdac1298fc56ad9659f
SHA1 3b921e04f50e1bae93f65c3b273b010a4f5476d3
SHA512 07c6bc4d18ff6d0ba08b4d757fcb6aedebbc048b0dd2ca4648d73a0bef559e15e4037fb01e3e11621eaed208a39ca93a97f6fb710accc26b168aa37ad1a3aa63
SSDEEP 1536:EcqgGQ5LklBclvinArFlBiOWjAakzyNuVa:EceQWlByiArPBUjCu0w
TLSH
T13833F1BBFF8A2AB1D483B8725107321F3FBA91139B6F4D67C04591385E58670C4A49B2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware discovery persistence spyware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\stivc.exe"	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	delttsul.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\delttsul.exe	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
File created	C:\Windows\SysWOW64\imgcom.dll	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
File created	C:\Windows\SysWOW64\ntdsapp.dll	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
File created	C:\Windows\SysWOW64\stivc.exe	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
File opened for modification	C:\Windows\SysWOW64\imgcom.dll	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe

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	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	delttsul.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\UserAgent = "Mozilla/4.0+(compatible;+MSIE+6.5;+Windows+NT+5.1)"	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 4312	4988	jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe	90
PID 4312 wrote to memory of 1968	4312	delttsul.exe	81

C:\Windows\explorer.exe
explorer.exe /LOADSAVEDWINDOWS
1⤵
PID:1968
- C:\Users\Admin\AppData\Local\Temp\jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe
  "C:\Users\Admin\AppData\Local\Temp\jaffacakes118__29cdea794739bcdac1298fc56ad9659f.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  PID:4988
- - C:\Windows\SysWOW64\delttsul.exe
    C:\Windows\system32\delttsul.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4312

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

delttsul.exe

Path C:\Windows\SysWOW64\delttsul.exe
Size 3KB
SHA256 5c058e9f57faf8408a7485050dd337c8ac46e03eaf51bf575416bffb43217b4a
MD5 6bf582d2cf376ab7518ccb596a5687ec
SHA1 76a1483333a906552f03e1d17c6e85d889cbd701
SHA512 57d6cc0fb5883af37584fdab7cee6a2d8c06c803e28b3ddfd1e5dc4e6af57bfbb217d067f6891a2a441e49a5bbd3366e4ff5e6f390e97e77d0dff24f7d3f395c
TLSH
T14A51521363946873D34D8B72085308A2FABF053C42E9DE158752829EF9F9927842C32B
MD5 SHA1 SHA512 TLSH

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imgcom.dll

Path C:\Windows\SysWOW64\imgcom.dll
Size 463B
SHA256 b0c78dc1b88dffaba82106ce6383afe7e8452060d28b039b3c823fe150bed617
MD5 27c15b81da71b19293be83ccea468d90
SHA1 d9b301c05f1bf071e50c9fd46630b0f2ad26ca43
SHA512 403a87c191fdcc221636aa66ac16219c725615ffeadc8edafc2c89bec750599de408f9f9b0c7b8fa2a71bae591a1205dad41a28d917a1e89d527fc48e4419a4c
TLSH
T1F7F0EDDE457AE22D087DDCC078F1E386E903AAD688C091D096109E25599452B3EDC32E
MD5 SHA1 SHA512 TLSH

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imgcom.dll

Path C:\Windows\SysWOW64\imgcom.dll
Size 477B
SHA256 0149575bf6c5040bc0c2977893e85d894fe0f421eb8136334e14450b1ce579e2
MD5 d32ae108c3523051338efa8c1f5a8774
SHA1 c68c8a916f41d3e88e0888b0878efb2488fe00f2
SHA512 9dac35250872c7195c7a58604ac53baf477ed239534893ce84a8c01ba21adcce2473aa87404ea6f57ed7718311d35bcc34aed96db50309ffe33220843d252513
TLSH
T170F05DDE487AE12D087DDCC038F1E386E903AAC2A8C080E082009E2509D402B3EDC32E
MD5 SHA1 SHA512 TLSH

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memory/4988-1-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/4988-30-0x0000000000400000-0x0000000000425000-memory.dmp

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memory/4988-38-0x0000000000400000-0x0000000000425000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads