flawedammyy | a9d30e9467e19dfb0dac7a925809b5c52c686977392ef45c9939022c5ff8c8b9

General

Target

ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Size

716KB
MD5

ae1609bbc9632bc4c049412c34ce100a
SHA1

9fda0f6140e77b1479ee9829190ff7ecf021601c
SHA256

a9d30e9467e19dfb0dac7a925809b5c52c686977392ef45c9939022c5ff8c8b9
SHA512

2100a62c0d10da4d2fc9944f2930edd2d13e751457f4bc4736a8b3c199b6a4f359242a011863a42fa6a5c61e95441bb3855b986f56d28963dbcc70c822ec06d8
SSDEEP

12288:u2QKNGp2YPjE0d63iVg5Bfi781Rt1hpGqzdpW9eKVQvTPRpsbS5hlgN:uSIp2Ydd6SVcpz1RtXpGadsbSeN

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
Flawedammyy family
flawedammyy

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	ae1609bbc9632bc4c049412c34ce100a_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	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 1ec7f509ec92ec04b10364f7bdc342fefff822fef39fc00a2e7f4a9687b4a6a9d513ba6986197027d3da1698ae6d2ebf3188d887924b57102e6ec4960f392ffd78b18fb96ea5cc9f32fcd8	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d567366087c6658524c175253ff4e936bb01eb36b	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1072	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1072	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 1072	2856	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe	83
PID 2856 wrote to memory of 1072	2856	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe	83
PID 2856 wrote to memory of 1072	2856	ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1128

C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe" -service -lunch
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ae1609bbc9632bc4c049412c34ce100a_JaffaCakes118.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
4a5758c90a623495ce4a15f589da3ae3

SHA1
5c31e1b647c7b05dd478dbffd34f83aa6c6556a0

SHA256
f812ac2d6b89e21d9fa8fb86e2a1a64b8f73d63e1ccf25a6f6f17cd1bc770fae

SHA512
f321aa8de4b7a7853078414907822b030467b40044ef93d165e64eb74d9933cba6db334f3da185851b95a9d7742d6ef54bcd94677514eeef659d0af033f92023

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
75B

MD5
7c873624e380cd71563db9cafe12a6c0

SHA1
25385b98b85c26f5640aebb9d0aa1239b3f5b456

SHA256
8ed032b22630dcfe833d5688bafca7efcf9370903c61403dec590bde20d4e8e8

SHA512
22d8fb2af06b47bceff53a8ecec8494665c9326e4b51b0215f428f702314c0937dce796f9e440724c0ffd1bc070eeb9190b1acc5c43c30f1cccaff6f2d85915f

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

Filesize
282B

MD5
31cd4f8ac85a4c4ff93eed2cee2d6f42

SHA1
20104e017d48b3237ad4baf04e852b2a71dc6d9b

SHA256
8ac86e1dc58c3d718ae5fc8dcb4bcd2e65b6cde3d6eac6532b75f3ec5fa7c8ab

SHA512
a9e8a264c59db8188837be062da155155ebc04fed270b278f89c92366611fba226ad78924faa5e4fa43238fdaf13c3024ab0ef0533ae3b40fdb6b9c1ae5d42e4

Download Submit

Analysis

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