Analysis Overview
SHA256
1fbf779d7f1d4dfe9cd3f7c84c6e5763bb77530acc11732563e7abaeaba65a93
Threat Level: Known bad
The file c4d20a36d9f0e1ca758818b3be981779 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer payload
Reads user/profile data of web browsers
Loads dropped DLL
Reads data files stored by FTP clients
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-13 03:07
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-13 03:07
Reported
2024-03-13 03:10
Platform
win7-20231129-en
Max time kernel
141s
Max time network
127s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\RegEdit = "C:\\Users\\Admin\\AppData\\Roaming\\RegEdit.exe" | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2172 set thread context of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE |
| PID 1732 set thread context of 2524 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe
"C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe"
C:\Users\Admin\AppData\Local\Temp\tmp1.exe
"C:\Users\Admin\AppData\Local\Temp\tmp1.exe"
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
"C:\Users\Admin\AppData\Local\Temp\tmp2.exe"
C:\Users\Admin\AppData\Local\Temp\tmp1.EXE
"C:\Users\Admin\AppData\Local\Temp\tmp1.EXE"
C:\Users\Admin\AppData\Local\Temp\tmp2.EXE
"C:\Users\Admin\AppData\Local\Temp\tmp2.EXE"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ljcp.gov.pk | udp |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| PK | 175.107.60.195:80 | ljcp.gov.pk | tcp |
Files
memory/2340-0-0x0000000000400000-0x000000000043C000-memory.dmp
\Users\Admin\AppData\Local\Temp\tmp1.exe
| MD5 | c1cfb778cbfe135b6fb0d2b6b9116b38 |
| SHA1 | f90af1a915f603a6acc40c18a5d9e8e6eef8d015 |
| SHA256 | b5d32c93e9a815f775489aa2b0ab1f86d45821df344916237746557062d7e8fb |
| SHA512 | 8ca72c995233c5c14eb9d1b6d6b1b70f72f03acbfb578743b0da8bce03b36d0d2d7e005feefb2fffd55f803e41f9e17b5be8ccc5a333a34d426545fbb6443b0a |
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
| MD5 | f0c93f442042bbbe985674d671191ed3 |
| SHA1 | a9ebbe67032eec48673b42325682859ce06a5e2c |
| SHA256 | 9708ceb9b7f76534315948101b2c8493d0c96e8205eee25e7b8a5473f65b997e |
| SHA512 | 7e8978c682d0e735f8f7bc16d1fb99136e927c7dc1d6e0fe5be41f0ec0808af9203bf146653f9fe4ac806c91f532144f5b27ac2b9adcb7b3876d4ab02a75e776 |
memory/2524-32-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2720-31-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2340-27-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2524-39-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2524-41-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2524-43-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2720-45-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-13 03:07
Reported
2024-03-13 03:10
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
153s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RegEdit = "C:\\Users\\Admin\\AppData\\Roaming\\RegEdit.exe" | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5000 set thread context of 2568 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE |
| PID 2356 set thread context of 2168 | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | C:\Users\Admin\AppData\Local\Temp\tmp2.EXE |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp1.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe
"C:\Users\Admin\AppData\Local\Temp\c4d20a36d9f0e1ca758818b3be981779.exe"
C:\Users\Admin\AppData\Local\Temp\tmp1.exe
"C:\Users\Admin\AppData\Local\Temp\tmp1.exe"
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
"C:\Users\Admin\AppData\Local\Temp\tmp2.exe"
C:\Users\Admin\AppData\Local\Temp\tmp1.EXE
"C:\Users\Admin\AppData\Local\Temp\tmp1.EXE"
C:\Users\Admin\AppData\Local\Temp\tmp2.EXE
"C:\Users\Admin\AppData\Local\Temp\tmp2.EXE"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| US | 8.8.8.8:53 | ljcp.gov.pk | udp |
| PK | 175.107.60.195:80 | ljcp.gov.pk | tcp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 195.60.107.175.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | www.mymobilewap.info | udp |
| US | 8.8.8.8:53 | 10.179.89.13.in-addr.arpa | udp |
Files
memory/5032-0-0x0000000000400000-0x000000000043C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp1.exe
| MD5 | c1cfb778cbfe135b6fb0d2b6b9116b38 |
| SHA1 | f90af1a915f603a6acc40c18a5d9e8e6eef8d015 |
| SHA256 | b5d32c93e9a815f775489aa2b0ab1f86d45821df344916237746557062d7e8fb |
| SHA512 | 8ca72c995233c5c14eb9d1b6d6b1b70f72f03acbfb578743b0da8bce03b36d0d2d7e005feefb2fffd55f803e41f9e17b5be8ccc5a333a34d426545fbb6443b0a |
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
| MD5 | f0c93f442042bbbe985674d671191ed3 |
| SHA1 | a9ebbe67032eec48673b42325682859ce06a5e2c |
| SHA256 | 9708ceb9b7f76534315948101b2c8493d0c96e8205eee25e7b8a5473f65b997e |
| SHA512 | 7e8978c682d0e735f8f7bc16d1fb99136e927c7dc1d6e0fe5be41f0ec0808af9203bf146653f9fe4ac806c91f532144f5b27ac2b9adcb7b3876d4ab02a75e776 |
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
| MD5 | 19be60d8ce45d71cba9166cc9000a265 |
| SHA1 | 2d6ede4da37200698d51624605f7e8bbc05da363 |
| SHA256 | 14b3e98b1bfbf89b2631741eb3c7116351dd08c52081b88519043c14a6f9b1c5 |
| SHA512 | cd615f665b7d3279bd5ede2bf0155593039ff3d69d948a2289a2baa2b17bb6ef451246385f5968b9a0329c34d25586768987de399d9073f168a5e40fcb2a2016 |
C:\Users\Admin\AppData\Local\Temp\tmp2.exe
| MD5 | 4eb6b67e77fa490b97926583d79d7e0d |
| SHA1 | 149e480b4fadfff351faac91f03a96a0382c2dc9 |
| SHA256 | 6391f472e0b8866b4db818f2d13daf8beca8d77918d712dfc3307582d40e10d0 |
| SHA512 | 2c49766d2ce7e693abfd25ddff14c3ae43af20d236d44ac4ffa4a332786c41d955c52ab1aac9593f03cd66f5c3c67850b13e62a4a27ad0b86647397dfab200f4 |
memory/2568-30-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2168-35-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2568-36-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5032-38-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2168-37-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2168-31-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2168-41-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2568-44-0x0000000000400000-0x0000000000414000-memory.dmp