f3de338bdde024a21dc1e987f41930a1b8ff9799adbab67f2345e8e648e81663

General

Target

FedexTrackingClearanceInformation_PDF.exe
Size

2.1MB
MD5

49ed9fd1bfe4e4d685f014084d3b11b4
SHA1

ad9aa4dedddcd8de2d2fab04344d8f26c165537d
SHA256

f3de338bdde024a21dc1e987f41930a1b8ff9799adbab67f2345e8e648e81663
SHA512

b3ec6eae21e84345c98162c79cdd5527b14524855e1d0b8f95e599ab49f47c51aca34965446d4b6a8c93217739a7bf7fa7de19e077ad117747ab29d030bf0466

Score

8^/10

persistence

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

Processes:

lfrbuild.exe

description pid process target process

PID 1948 set thread context of 1996 1948 lfrbuild.exe AddInProcess32.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

description	pid	process	target process
PID 1948 set thread context of 1996	1948	lfrbuild.exe	AddInProcess32.exe

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\rflbuild = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\lfrbuild.exe"	reg.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

FedexTrackingClearanceInformation_PDF.exelfrbuild.exeAddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	1768	FedexTrackingClearanceInformation_PDF.exe
Token: SeDebugPrivilege	1948	lfrbuild.exe
Token: SeDebugPrivilege	1996	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FedexTrackingClearanceInformation_PDF.exelfrbuild.exe

pid	process
1768	FedexTrackingClearanceInformation_PDF.exe
1768	FedexTrackingClearanceInformation_PDF.exe
1768	FedexTrackingClearanceInformation_PDF.exe
1948	lfrbuild.exe
1948	lfrbuild.exe
1948	lfrbuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

FedexTrackingClearanceInformation_PDF.execmd.exelfrbuild.exe

description	pid	process	target process
PID 1768 wrote to memory of 1868	1768	FedexTrackingClearanceInformation_PDF.exe	cmd.exe
PID 1768 wrote to memory of 1868	1768	FedexTrackingClearanceInformation_PDF.exe	cmd.exe
PID 1768 wrote to memory of 1868	1768	FedexTrackingClearanceInformation_PDF.exe	cmd.exe
PID 1768 wrote to memory of 1868	1768	FedexTrackingClearanceInformation_PDF.exe	cmd.exe
PID 1868 wrote to memory of 1880	1868	cmd.exe	reg.exe
PID 1868 wrote to memory of 1880	1868	cmd.exe	reg.exe
PID 1868 wrote to memory of 1880	1868	cmd.exe	reg.exe
PID 1868 wrote to memory of 1880	1868	cmd.exe	reg.exe
PID 1768 wrote to memory of 1948	1768	FedexTrackingClearanceInformation_PDF.exe	lfrbuild.exe
PID 1768 wrote to memory of 1948	1768	FedexTrackingClearanceInformation_PDF.exe	lfrbuild.exe
PID 1768 wrote to memory of 1948	1768	FedexTrackingClearanceInformation_PDF.exe	lfrbuild.exe
PID 1768 wrote to memory of 1948	1768	FedexTrackingClearanceInformation_PDF.exe	lfrbuild.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe
PID 1948 wrote to memory of 1996	1948	lfrbuild.exe	AddInProcess32.exe

Loads dropped DLL 2 IoCs

Processes:

FedexTrackingClearanceInformation_PDF.exelfrbuild.exe

pid process

1768 FedexTrackingClearanceInformation_PDF.exe
1948 lfrbuild.exe
Executes dropped EXE 2 IoCs

Processes:

lfrbuild.exeAddInProcess32.exe

pid process

1948 lfrbuild.exe
1996 AddInProcess32.exe

pid	process
1948	lfrbuild.exe
1996	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\FedexTrackingClearanceInformation_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\FedexTrackingClearanceInformation_PDF.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
PID:1768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v rflbuild /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\lfrbuild.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1868

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v rflbuild /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\lfrbuild.exe"
3⤵
- Adds Run entry to start application
PID:1880

C:\Users\Admin\AppData\Roaming\lfrbuild.exe
"C:\Users\Admin\AppData\Roaming\lfrbuild.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
- Executes dropped EXE
PID:1948

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
- Executes dropped EXE
PID:1996

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

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C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

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C:\Users\Admin\AppData\Roaming\lfrbuild.exe

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C:\Users\Admin\AppData\Roaming\lfrbuild.exe

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\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

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\Users\Admin\AppData\Roaming\lfrbuild.exe

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memory/1768-1-0x0000000000000000-0x0000000000000000-disk.dmp

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memory/1868-3-0x0000000000000000-mapping.dmp

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memory/1880-4-0x0000000000000000-mapping.dmp

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memory/1948-6-0x0000000000000000-mapping.dmp

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memory/1996-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

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memory/1996-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

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memory/1996-15-0x000000000040C75E-mapping.dmp

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memory/1996-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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