Analysis Overview
SHA256
9fa6913cdcf9b6aad02d3116c20aa03506891265448fe013bd0b35f7a415a9ef
Threat Level: Known bad
The file 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe.zip was found to be: Known bad.
Malicious Activity Summary
AmmyyAdmin payload
Ammyyadmin family
FlawedAmmyy RAT
Checks computer location settings
Drops file in System32 directory
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-10-31 14:04
Signatures
AmmyyAdmin payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Ammyyadmin family
Analysis: behavioral1
Detonation Overview
Submitted
2023-10-31 14:04
Reported
2023-10-31 14:30
Platform
win7-20231023-en
Max time kernel
150s
Max time network
146s
Command Line
Signatures
FlawedAmmyy RAT
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c10595367ea224c4e53b26b | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 3434347f2127fe01889ddd17d6fe566033b02d84096b26520031824f491a117fc6f7ab3e453089924a14679bb6e02de8806f0b17d15a3750db14d26e7625cde5e782d89b | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rl.ammyy.com | udp |
| NL | 188.42.129.148:80 | rl.ammyy.com | tcp |
| DE | 136.243.104.242:443 | tcp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 6910d9160b66c4395f587a279e80f132 |
| SHA1 | 54949c04c8c0970aa5e2d3fb2912318daab97b98 |
| SHA256 | 72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c |
| SHA512 | 82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9 |
C:\ProgramData\AMMYY\hr
| MD5 | 5f54b4197bb18fe0694b3020e8692086 |
| SHA1 | bd4136d020282ed014df0459316d387833055e8a |
| SHA256 | 20fa1f12f3f991433db843907119e29aed432720cc31b0f83021014dbe8a7710 |
| SHA512 | 0a7325900ae68608fb2086c9b52c63a6fa186f3bd8b8dc06aee6b4253f15d5e337f9d0eedf77fe590b33170a9a7219d852cf6bd8dc624c8513dfff6f2cdfe980 |
C:\ProgramData\AMMYY\hr3
| MD5 | 502c7f9432aeb91beeea3de82bf0feb7 |
| SHA1 | 8457b9cdbd086cdf4aca6ecc637d12935bd77ab7 |
| SHA256 | 8202bba9da6a169d206806d91f30020f4039646f5a6d7b8a1312e3f26d594561 |
| SHA512 | 4112f9b5f403500b718c9bbf8bef823a807f17e71e9d903103274504ed6da5adcaf4032b6bf33d6cd32361bd738f80856220927bb1221e475d5f816b8577efd2 |
Analysis: behavioral2
Detonation Overview
Submitted
2023-10-31 14:04
Reported
2023-10-31 14:31
Platform
win10v2004-20231023-en
Max time kernel
165s
Max time network
175s
Command Line
Signatures
FlawedAmmyy RAT
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 8e79c33164cc80a9a1aa133b8b233364303ad11280b5d322c764e10c816df0483221f8bda5acbdc15a3398d329ad81b0d738255877e6a78ca9a9dfe978a17dd4221045eb | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Ammyy | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e155253194a0f954e53b26b | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2260 wrote to memory of 3328 | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe |
| PID 2260 wrote to memory of 3328 | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe |
| PID 2260 wrote to memory of 3328 | N/A | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe | C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe
"C:\Users\Admin\AppData\Local\Temp\349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rl.ammyy.com | udp |
| NL | 188.42.129.148:80 | rl.ammyy.com | tcp |
| DE | 136.243.104.235:443 | tcp | |
| US | 8.8.8.8:53 | 148.129.42.188.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 235.104.243.136.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | 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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.5.248.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.197.79.40.in-addr.arpa | udp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 6910d9160b66c4395f587a279e80f132 |
| SHA1 | 54949c04c8c0970aa5e2d3fb2912318daab97b98 |
| SHA256 | 72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c |
| SHA512 | 82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9 |
C:\ProgramData\AMMYY\hr
| MD5 | 490839bd1283c73156306e849e97e468 |
| SHA1 | 2e0487b32ad01d897f4f3f68dbdd8c0b769f2967 |
| SHA256 | 8f32c532d2c7d9ab1c9683009b58db8ad4bcabcab55b2ba9984bda3b579fc1b3 |
| SHA512 | db43a0ad0d8d6abd1fa14d62505c3800ef2eddbfd662767482dd917a8e834b15e7dddcf2940166efff69d9c74d65fbc4b61cd12972300177197286ff94f6a5d8 |
C:\ProgramData\AMMYY\hr3
| MD5 | 244478ebbbcdd699838af15930069568 |
| SHA1 | 2919c3fc25ccd0def7a297514bd0faf6860328cc |
| SHA256 | a10ed0a0ab849f95a71525b62ac36a9a900f1ee2398a4b40784c196500f0bf29 |
| SHA512 | abac53ee3f20a6716be6e96506c33983386bd76acf1461b0b483814df456df25eacbff1676aa3c2a36ea86b1da709775d3aeef5622155b3f0c18a34e422c0895 |