flawedammyy | 8d6e783c42531ba3a8c823293d399c08f0ef07c007213f40f253aea1ddfc7dfe

Analysis

max time kernel
150s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 03:59

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General

Target

0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Size

704KB
MD5

0dcf6b80de9636e9f2d58825842404ee
SHA1

56197059d0319560d256b067a90b01131cd44733
SHA256

8d6e783c42531ba3a8c823293d399c08f0ef07c007213f40f253aea1ddfc7dfe
SHA512

91bf4a8336420555d31bbd94c079f56575386c2a9659956def2be780c06ba6eb8b04a447c9109d739b081be0fd37248a077ac6381d05af0b54d393053d25a996
SSDEEP

12288:YKHp9fDIItMm2o44sGTdBqWvwD+8ChCbW3XTjY1r1RtH8ePhAU5u0AhpZxAhkg1:YorLkbDEhyW3XS1RtcePKUBATZx81

Score

10^/10

flawedammyy discovery trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d567366087c6658524c175253287a57ad004ab36b	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = b9604cbad1e7573879d6e3309b9724d01889fdb733501e95d8d24567bb5e21d622a941182f35a85084b244e0935c9a7b170f2c5300af3c83c84ff336d610fe89af82e8c4c99f9da59793c6	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1152	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1152	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1152	2420	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe	83
PID 2420 wrote to memory of 1152	2420	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe	83
PID 2420 wrote to memory of 1152	2420	0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4320

C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe" -service -lunch
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0dcf6b80de9636e9f2d58825842404ee_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
8352ac3fd99dfbf88696e82b6a8f9b73

SHA1
3478e9fae1134bdcb746af6f68003d903ed9c230

SHA256
0ae23cb1624774d1a87adab495fbb21a889307bf1e77b7da515fc03bca72a7b2

SHA512
d19df87cc0d7da7e690f2b778d410978fc192b595bd64ec8c0b79fdc360154e70dbc9163fe85ac951fdea4a0ab6deb0a1be8522648878bbb63a7451959cc6151

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
75B

MD5
d7b220d30166d66262abf9b7572b4e6e

SHA1
1331b52444d8250a0f6d51ca06780d19dbc7fccb

SHA256
29db91def7c8ec84dc5a0af97b23986ceeb991b56a7fc9a9335bd36a6a4023e1

SHA512
e5fc78a6843962b79c7da1569edaf514d92b9a8757c65d4169b96c6b6c8e6c45fad95052bf782b03d622edfdefbe1d20ffbef827b1790786c9937cae8097028b

Download Submit
C:\ProgramData\AMMYY\settings3.bin

Filesize
305B

MD5
e57a0570fc4baf51499bf05f363705df

SHA1
41653da3b123392ff4d89ff894a4cc160b80e6e9

SHA256
bc9847d6150b46d1fe077f2489c308da53a54c3e003ace56724a721e6e698f75

SHA512
aa3b12aaac6427372043cd6ebeb11d9205ce0e1a20258673b8083f776046a2ddedbacdeca9d993a1959a70d074a46352e69f9ec93ca27ecd403a4e7f81002465

Download Submit