7bcde76356cbd428ffd4fd3288f1f07d49db7d3d772b9671bfa2bb1f98a3ae17

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
07/08/2023, 06:15

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General

Target

overlaycrypt.exe
Size

846KB
MD5

0f6ffc2e70d312972d592fd43d49b10c
SHA1

1be29b9bf2da79e428f3e2ed95b25880b72cbc0c
SHA256

7bcde76356cbd428ffd4fd3288f1f07d49db7d3d772b9671bfa2bb1f98a3ae17
SHA512

71daeb9d2c213caf896a0cfcad6336c29e5c0645248fd26805ffa915ec69886639c704a4b3e1c6cd9c1412dbfff041d8efc7b60aeae69ae79a18aa81d0f4a600
SSDEEP

12288:nByKFBp5YVGAVUOJNcTUW91MPSNZm6wZUkmLB7j/QFU0u0cql03za+9rSdfDG:EKrp5YoOJ41MCzwZU3LG9/2DayufD

Score

6^/10

persistence

Malware Config

Signatures

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-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows\CurrentVersion\Run\NetworkService = "C:\\Users\\Admin\\AppData\\Roaming\\NetworkService.exe"	overlaycrypt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 1380	2220	overlaycrypt.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2220	overlaycrypt.exe
2220	overlaycrypt.exe
1940	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	overlaycrypt.exe
Token: SeDebugPrivilege	1940	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2904	2220	overlaycrypt.exe	28
PID 2220 wrote to memory of 2904	2220	overlaycrypt.exe	28
PID 2220 wrote to memory of 2904	2220	overlaycrypt.exe	28
PID 2220 wrote to memory of 2904	2220	overlaycrypt.exe	28
PID 2904 wrote to memory of 1940	2904	cmd.exe	30
PID 2904 wrote to memory of 1940	2904	cmd.exe	30
PID 2904 wrote to memory of 1940	2904	cmd.exe	30
PID 2904 wrote to memory of 1940	2904	cmd.exe	30
PID 2220 wrote to memory of 564	2220	overlaycrypt.exe	31
PID 2220 wrote to memory of 564	2220	overlaycrypt.exe	31
PID 2220 wrote to memory of 564	2220	overlaycrypt.exe	31
PID 2220 wrote to memory of 564	2220	overlaycrypt.exe	31
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32
PID 2220 wrote to memory of 1380	2220	overlaycrypt.exe	32

C:\Users\Admin\AppData\Local\Temp\overlaycrypt.exe
"C:\Users\Admin\AppData\Local\Temp\overlaycrypt.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c powershell set-mppreference -exclusionpath C:\
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell set-mppreference -exclusionpath C:\
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1940
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  PID:564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  PID:1380

Network

MITRE ATT&CK Enterprise v15

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

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1940-1154-0x0000000073D90000-0x000000007433B000-memory.dmp

Filesize
5.7MB

Download
memory/1940-1157-0x0000000073D90000-0x000000007433B000-memory.dmp

Filesize
5.7MB

Download
memory/1940-1156-0x0000000002330000-0x0000000002370000-memory.dmp

Filesize
256KB

Download
memory/1940-1155-0x0000000073D90000-0x000000007433B000-memory.dmp

Filesize
5.7MB

Download
memory/2220-97-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-101-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-61-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-63-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-65-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-67-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-69-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-73-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-71-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-75-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-77-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-79-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-81-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-83-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-85-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-89-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-87-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-99-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-54-0x0000000000E50000-0x0000000000F2A000-memory.dmp

Filesize
872KB

Download
memory/2220-95-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-59-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-93-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-91-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-103-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-105-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-107-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-109-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-111-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-113-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-117-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-115-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-119-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-121-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-1135-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/2220-1134-0x0000000073C50000-0x000000007433E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-1136-0x0000000000AC0000-0x0000000000B08000-memory.dmp

Filesize
288KB

Download
memory/2220-1137-0x0000000000BB0000-0x0000000000BFC000-memory.dmp

Filesize
304KB

Download
memory/2220-1139-0x0000000004B90000-0x0000000004BD0000-memory.dmp

Filesize
256KB

Download
memory/2220-1151-0x0000000073C50000-0x000000007433E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-58-0x0000000005090000-0x0000000005157000-memory.dmp

Filesize
796KB

Download
memory/2220-57-0x0000000005090000-0x000000000515E000-memory.dmp

Filesize
824KB

Download
memory/2220-56-0x0000000004B90000-0x0000000004BD0000-memory.dmp

Filesize
256KB

Download
memory/2220-55-0x0000000073C50000-0x000000007433E000-memory.dmp

Filesize
6.9MB

Download