d22cd7fc720b7fc65ab0ec5a50e8dbde8c58c499ec5c289c0e1614f24d6255f8

General

Target

Proforma Invoice 20200619.exe
Size

619KB
MD5

0c55c4e607abb7f6c593d6d8dc140a0a
SHA1

6e50f8fcf9ec02aeee70b4ce14bd44a45b29bd32
SHA256

d22cd7fc720b7fc65ab0ec5a50e8dbde8c58c499ec5c289c0e1614f24d6255f8
SHA512

713facdb87ef95d5a569ebd69067101c25a0dd3ef65af778fcefb8dffb070580badd084a4cc86bc0130e35c23f17b5a71d3fcecb3ba9a88383d14d557a6b7371

Score

8^/10

persistence evasion spyware

Malware Config

Signatures

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Proforma Invoice 20200619.exeRegAsm.exe

description	pid	process	target process
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1316 wrote to memory of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe
PID 1464 wrote to memory of 1032	1464	RegAsm.exe	REG.exe
PID 1464 wrote to memory of 1032	1464	RegAsm.exe	REG.exe
PID 1464 wrote to memory of 1032	1464	RegAsm.exe	REG.exe
PID 1464 wrote to memory of 1032	1464	RegAsm.exe	REG.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Proforma Invoice 20200619.exe

description pid process target process

PID 1316 set thread context of 1464 1316 Proforma Invoice 20200619.exe RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1464 RegAsm.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

1464 RegAsm.exe
1464 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

1464 RegAsm.exe

description	pid	process	target process
PID 1316 set thread context of 1464	1316	Proforma Invoice 20200619.exe	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1464	RegAsm.exe

pid	process
1464	RegAsm.exe
1464	RegAsm.exe

pid	process
1464	RegAsm.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Proforma Invoice 20200619.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\mediafiles = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\mediafile.exe"	Proforma Invoice 20200619.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1032 REG.exe
Disables Task Manager via registry modification
evasion
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Proforma Invoice 20200619.exe

pid process

1316 Proforma Invoice 20200619.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1032	REG.exe

pid	process
1316	Proforma Invoice 20200619.exe

C:\Users\Admin\AppData\Local\Temp\Proforma Invoice 20200619.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice 20200619.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Adds Run entry to start application
- Suspicious behavior: MapViewOfSection
PID:1316

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1464

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1032

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

2

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1032-4-0x0000000000000000-mapping.dmp

Download
memory/1464-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1464-1-0x000000000044B93E-mapping.dmp

Download
memory/1464-2-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1464-3-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

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