25483a164b2ab3cb283f494f2022793b99595bbf3af41b0620dcd3b0d3d612be

General

Target

677809.exe
Size

541KB
MD5

7416af0e6dbe13b36bdfe2e609b00666
SHA1

5958c7eb0d93510ff00241c7257d7026c207c7e8
SHA256

25483a164b2ab3cb283f494f2022793b99595bbf3af41b0620dcd3b0d3d612be
SHA512

e29221074b0c84d093a6b0e70d9912a5300a7fc2f9c096ecaff07d282dfe85f656c6fb6f1b02e5873be42e23aac6abb7032b159add757bd188c6abd3547ecda1
SSDEEP

12288:oY+ojsYcfslV1Px6E4ZNmnh6rzYk9Lbfd5vS9/TRTA:oY9sYcfslV1slZqhRkBbV5voVk

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4892	wuprisx.exe
4420	wuprisx.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wuprisx.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wuprisx.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wuprisx.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jrkgu = "C:\\Users\\Admin\\AppData\\Roaming\\ibwd\\vlxqnrgviurly.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\wuprisx.exe\" C:\\Users\\Admin\\AppData\\Local"	wuprisx.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\APP = "C:\\Users\\Admin\\AppData\\Roaming\\APP\\APP.exe"	wuprisx.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
6	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 4420	4892	wuprisx.exe	83

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

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4892	wuprisx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4420	wuprisx.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 4892	4896	677809.exe	82
PID 4896 wrote to memory of 4892	4896	677809.exe	82
PID 4896 wrote to memory of 4892	4896	677809.exe	82
PID 4892 wrote to memory of 4420	4892	wuprisx.exe	83
PID 4892 wrote to memory of 4420	4892	wuprisx.exe	83
PID 4892 wrote to memory of 4420	4892	wuprisx.exe	83
PID 4892 wrote to memory of 4420	4892	wuprisx.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wuprisx.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wuprisx.exe

C:\Users\Admin\AppData\Local\Temp\677809.exe
"C:\Users\Admin\AppData\Local\Temp\677809.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Local\Temp\wuprisx.exe
  "C:\Users\Admin\AppData\Local\Temp\wuprisx.exe" C:\Users\Admin\AppData\Local\Temp\rmita.a
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Users\Admin\AppData\Local\Temp\wuprisx.exe
    "C:\Users\Admin\AppData\Local\Temp\wuprisx.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:4420

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\imzotqihz.i

Filesize
263KB

MD5
7975217ccc0fc90230f5df21a0ecb1e0

SHA1
7ed3a774d848bd12420c06829cfc6cf91b543943

SHA256
22a36e4df1d3478dfdf685fa168b416cca641467d97102ab931b7605e409460c

SHA512
781e5b75d05bf0007c1c5dc25261ca341519bba2184732e3448316f6331d1cf48fed3133b4737d2457a29d1cdbdbeb699c57ad6dddbe599247e0e69ad5cadf8c

Download Submit
C:\Users\Admin\AppData\Local\Temp\rmita.a

Filesize
8KB

MD5
5e9651548e39691e6e8a155b480e07bc

SHA1
a8f7b5d025f901ca84d545bf63228726150cd41e

SHA256
d6e0500ee5a750dc59a1393a2ee5c9e94ed2f1fd848d3dc43f9b45dea4681ff2

SHA512
fb46563a29150b12aba26e8a8600b104b9496f70e5edf289ee1f21fc1af91522e595815123463049a5d55c1bece2aeee67037825b7f57058dbfa0c5268ecdf78

Download Submit
C:\Users\Admin\AppData\Local\Temp\wuprisx.exe

Filesize
84KB

MD5
6ca33fa76bc79d261644367b29d4ea36

SHA1
3160e234ba87605126ec10d597920ab9b61feec5

SHA256
d7565d792a50c889ff5dbcc76d754629f789ff5e1b60cb5e0d73cdb72ea3be2c

SHA512
c1c2271e0b9885b26f13df14a246fbd70693b0eb8326680afed1fed8afe81d186c179ae31a10d0c5a5b1f853ca00032b86153c8b64b78988fa8b2c236d73d0e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\wuprisx.exe

Filesize
84KB

MD5
6ca33fa76bc79d261644367b29d4ea36

SHA1
3160e234ba87605126ec10d597920ab9b61feec5

SHA256
d7565d792a50c889ff5dbcc76d754629f789ff5e1b60cb5e0d73cdb72ea3be2c

SHA512
c1c2271e0b9885b26f13df14a246fbd70693b0eb8326680afed1fed8afe81d186c179ae31a10d0c5a5b1f853ca00032b86153c8b64b78988fa8b2c236d73d0e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\wuprisx.exe

Filesize
84KB

MD5
6ca33fa76bc79d261644367b29d4ea36

SHA1
3160e234ba87605126ec10d597920ab9b61feec5

SHA256
d7565d792a50c889ff5dbcc76d754629f789ff5e1b60cb5e0d73cdb72ea3be2c

SHA512
c1c2271e0b9885b26f13df14a246fbd70693b0eb8326680afed1fed8afe81d186c179ae31a10d0c5a5b1f853ca00032b86153c8b64b78988fa8b2c236d73d0e0

Download Submit
memory/4420-139-0x0000000004A40000-0x0000000004FE4000-memory.dmp

Filesize
5.6MB

Download
memory/4420-140-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/4420-141-0x0000000004FF0000-0x0000000005056000-memory.dmp

Filesize
408KB

Download
memory/4420-142-0x0000000006160000-0x00000000061F2000-memory.dmp

Filesize
584KB

Download
memory/4420-143-0x0000000006150000-0x000000000615A000-memory.dmp

Filesize
40KB

Download
memory/4420-144-0x00000000062A0000-0x00000000062F0000-memory.dmp

Filesize
320KB

Download
memory/4420-145-0x0000000006440000-0x0000000006602000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing