39dc95ac9349b9045b0ece72b32d2fabcc4d7d674dd0684e339e7c16d9885e47

Analysis

max time kernel
121s
max time network
138s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 01:10

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General

Target

099f93cb8df46a1c704401763a55d4a9.exe
Size

24KB
MD5

099f93cb8df46a1c704401763a55d4a9
SHA1

90b9865eb3da4188ff8531095284ba6bc2a89a88
SHA256

39dc95ac9349b9045b0ece72b32d2fabcc4d7d674dd0684e339e7c16d9885e47
SHA512

2bebe321ec49ab7c7e7466c2b35ec8fe019075646c3ca359183dac08833cce3c648b9c4175bd37075f7a9bef174c50ce7ff40b568119316bd3c9c69ce0d66e37
SSDEEP

384:E3eVES+/xwGkRKJMa1lM61qmTTMVF9/q5w0:bGS+ZfbJL1O8qYoAJ

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Start GeekBuddy = "C:\\Program Files\\Common Files\\Microsoft Shared\\Web Folders\\1033\\spoolsv.exe"	099f93cb8df46a1c704401763a55d4a9.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared\Web Folders\1033\spoolsv.exe	099f93cb8df46a1c704401763a55d4a9.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2672	tasklist.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2832	NETSTAT.EXE
2636	ipconfig.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	tasklist.exe
Token: SeDebugPrivilege	2832	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1956	099f93cb8df46a1c704401763a55d4a9.exe
1956	099f93cb8df46a1c704401763a55d4a9.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1228	1956	099f93cb8df46a1c704401763a55d4a9.exe	28
PID 1956 wrote to memory of 1228	1956	099f93cb8df46a1c704401763a55d4a9.exe	28
PID 1956 wrote to memory of 1228	1956	099f93cb8df46a1c704401763a55d4a9.exe	28
PID 1956 wrote to memory of 1228	1956	099f93cb8df46a1c704401763a55d4a9.exe	28
PID 1228 wrote to memory of 2732	1228	cmd.exe	30
PID 1228 wrote to memory of 2732	1228	cmd.exe	30
PID 1228 wrote to memory of 2732	1228	cmd.exe	30
PID 1228 wrote to memory of 2732	1228	cmd.exe	30
PID 1228 wrote to memory of 2636	1228	cmd.exe	31
PID 1228 wrote to memory of 2636	1228	cmd.exe	31
PID 1228 wrote to memory of 2636	1228	cmd.exe	31
PID 1228 wrote to memory of 2636	1228	cmd.exe	31
PID 1228 wrote to memory of 2672	1228	cmd.exe	32
PID 1228 wrote to memory of 2672	1228	cmd.exe	32
PID 1228 wrote to memory of 2672	1228	cmd.exe	32
PID 1228 wrote to memory of 2672	1228	cmd.exe	32
PID 1228 wrote to memory of 2552	1228	cmd.exe	34
PID 1228 wrote to memory of 2552	1228	cmd.exe	34
PID 1228 wrote to memory of 2552	1228	cmd.exe	34
PID 1228 wrote to memory of 2552	1228	cmd.exe	34
PID 2552 wrote to memory of 2252	2552	net.exe	35
PID 2552 wrote to memory of 2252	2552	net.exe	35
PID 2552 wrote to memory of 2252	2552	net.exe	35
PID 2552 wrote to memory of 2252	2552	net.exe	35
PID 1228 wrote to memory of 2832	1228	cmd.exe	36
PID 1228 wrote to memory of 2832	1228	cmd.exe	36
PID 1228 wrote to memory of 2832	1228	cmd.exe	36
PID 1228 wrote to memory of 2832	1228	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\099f93cb8df46a1c704401763a55d4a9.exe
"C:\Users\Admin\AppData\Local\Temp\099f93cb8df46a1c704401763a55d4a9.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ver >c:\windows\temp\flash.log & cmd /c set >>c:\windows\temp\flash.log & ipconfig /all >>c:\windows\temp\flash.log & tasklist >>c:\windows\temp\flash.log & net start>>c:\windows\temp\flash.log & netstat -an >>c:\windows\temp\flash.log
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2732
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2636
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2672
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2552
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2252
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\temp\flash.log

Filesize
8KB

MD5
e3d50497fb58dc939316da427589b149

SHA1
16b5b5c9dbd5d3621c7a8397ab513f13f7c49aa7

SHA256
5ff10c5f71854a064aaa3429c8b1067c20ca93c1f2f487ac69c261611a35192f

SHA512
5d06f37f6872f70d330f361c666ce18ed7a9c2a3c79c20ef9e1e2268a782ee3f755be1f0c3cff54404da23ccb24b3fb76c204448a9204372220474bfc607b45b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads