bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9

Analysis

max time kernel
148s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/09/2026, 17:49

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General

Target
jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
Size 25KB
Sample260925-wecf4aga38
SHA256 bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9
MD5 6e04de40b9e5e3b72b2831d75411ed73
SHA1 b1e8cf78a376469bbcbc199382c6cc7c02a6c833
SHA512 b1b27956111c9d7f9cb98446dfa55d8bb677355decb19ab787cb6cd856b51b0544cc172c0a84ff7c7a2a05dc31d2e20111010a8a6cdc2681ae17ebce3a243f43
SSDEEP 384:NM+BqgIyuGMKXsa+Lw4ptD4Qr7phIXYPmhG58Ue9p8l654YLsUU6rMBJY0oigvXp:NxwgI2Mysa+Lw4D5eXXeZYLsZJK1vX
TLSH
T167C27E76742001A3C0B0CE75C1454E29466EED2ED65DBD029A407E393DB74AFEFF921A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c00000001c5a2-7.dat	acprotect

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4248	iexp1ore.exe

Executes dropped EXE 2 IoCs

pid	Process
4248	iexp1ore.exe
3272	iexp1ore.exe

Loads dropped DLL 4 IoCs

pid	Process
4248	iexp1ore.exe
3272	iexp1ore.exe
3272	iexp1ore.exe
3272	iexp1ore.exe

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-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\qkgxt93vuc9le = "C:\\Windows\\iexp1ore.exe"	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\LgSyzr.dll	iexp1ore.exe
File created	C:\Windows\SysWOW64\LgSyzr.dll	iexp1ore.exe
File created	C:\Windows\SysWOW64\MgSyr.dll	iexp1ore.exe
File opened for modification	C:\Windows\SysWOW64\MgSyr.dll	iexp1ore.exe
File created	C:\Windows\SysWOW64\LgSyzr.dll	iexp1ore.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4248-8-0x0000000010000000-0x000000001000C000-memory.dmp	upx
behavioral2/files/0x000c00000001c5a2-7.dat	upx
behavioral2/memory/3272-17-0x0000000010000000-0x000000001000C000-memory.dmp	upx
behavioral2/memory/4248-21-0x0000000010000000-0x000000001000C000-memory.dmp	upx
behavioral2/memory/3272-25-0x0000000000A90000-0x0000000000A9C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\iexp1ore.exe	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
File created	C:\Windows\iexp1ore.exe	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexp1ore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexp1ore.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
Token: SeDebugPrivilege	4248	iexp1ore.exe
Token: SeDebugPrivilege	3272	iexp1ore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4248	iexp1ore.exe
3272	iexp1ore.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 4248	2616	jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe	89

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\iexp1ore.exe
  C:\Windows\iexp1ore.exe C:\Users\Admin\AppData\Local\Temp\jaffacakes118_bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4248

C:\Windows\iexp1ore.exe
C:\Windows\iexp1ore.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3272

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

LgSyzr.dll

Path C:\Windows\SysWOW64\LgSyzr.dll
Size 13KB
SHA256 572f7723d25baceeeb32fd235a3963c623955b900fae1f92d852165d9821ae65
MD5 e8f7e859b3d399487be2868fe0ae1424
SHA1 f4165c34cc33b0834b62ab6ca26fe5e919f294f5
SHA512 9d7d96b6f0fa9611f49d9ac43c9d2c6ef5501021e8e7545ba49d63d05b69d4a120971ee595b2c279e163c8185fc465fd87649cc8ca4bf44c834db4e4fd31ec7a
SSDEEP 192:grSrYN4q4pM53X6So35BOwu7muBTt5GKGwqYNMfMws5nGQpf0t86ArtQUf3aF:GSr67Z6BuH7m+bMkrGQpfw6g
TLSH
T18C52B0BDA9BA87F7C4FA403411C5A2883C7A8422E9E522F50E5A67DB5BF47C045FC560
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

iexp1ore.exe

Path C:\Windows\iexp1ore.exe
Size 25KB
SHA256 bb99f5093a519d42d72091ba682697e37b6ff1675c8bf84ccc87bbe0383d38e9
MD5 6e04de40b9e5e3b72b2831d75411ed73
SHA1 b1e8cf78a376469bbcbc199382c6cc7c02a6c833
SHA512 b1b27956111c9d7f9cb98446dfa55d8bb677355decb19ab787cb6cd856b51b0544cc172c0a84ff7c7a2a05dc31d2e20111010a8a6cdc2681ae17ebce3a243f43
SSDEEP 384:NM+BqgIyuGMKXsa+Lw4ptD4Qr7phIXYPmhG58Ue9p8l654YLsUU6rMBJY0oigvXp:NxwgI2Mysa+Lw4D5eXXeZYLsZJK1vX
TLSH
T167C27E76742001A3C0B0CE75C1454E29466EED2ED65DBD029A407E393DB74AFEFF921A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2616-0-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/2616-1-0x0000000000401000-0x0000000000402000-memory.dmp

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memory/2616-3-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/3272-17-0x0000000010000000-0x000000001000C000-memory.dmp

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memory/3272-25-0x0000000000A90000-0x0000000000A9C000-memory.dmp

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memory/3272-44-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/4248-4-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/4248-8-0x0000000010000000-0x000000001000C000-memory.dmp

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memory/4248-20-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/4248-21-0x0000000010000000-0x000000001000C000-memory.dmp

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