flawedammyy | 8fdbf2e7885aed7b918d92f0e1def1d4e441d454950c557f154019fc344abda2

Analysis

max time kernel
150s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-06-2024 12:06

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General

Target

dll/UzakYardim.exe
Size

740KB
MD5

10a524d7ac94678ae286b065421647db
SHA1

b538e3f113817c8237419310ef47817d1d961fa9
SHA256

55daa062650d42e0feabc5ae1c3e4a7f68d4f8a3c69be375a0abc7bf3e1efad4
SHA512

928b0e712e604a5ba9580ff6ecadbdf77e2fda6847b11366ce929281ae8e5e3a633073ff07176989ddcb5f8387c6f7c061729af99b61a23a319ddeb7d63ace1b
SSDEEP

12288:pUYpJqMH2OwlaUPcWWw5XZV8f64RteVpN5ETMasTjmgvPi:ZpJJWOwlaUPcWWwRZb4Rt+N5WMasHDy

Score

10^/10

flawedammyy 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-1-5-21-2297530677-1229052932-2803917579-1000\Control Panel\International\Geo\Nation	UzakYardim.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	UzakYardim.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	UzakYardim.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	UzakYardim.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	UzakYardim.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c105953e73837a9e6eab26b	UzakYardim.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 9011a332e42a445d17a8e4977342a9dd1251e43f39cd0fd683498b22d9770d8bfc1869b85ef20d6d3366daaf2414e05c9c2cceecf539aec9483f6bfa9d063a7aad522108	UzakYardim.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2532	UzakYardim.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2532	UzakYardim.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2532	2764	UzakYardim.exe	29
PID 2764 wrote to memory of 2532	2764	UzakYardim.exe	29
PID 2764 wrote to memory of 2532	2764	UzakYardim.exe	29
PID 2764 wrote to memory of 2532	2764	UzakYardim.exe	29

C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe
"C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe"
1⤵
PID:2068

C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe
"C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe
  "C:\Users\Admin\AppData\Local\Temp\dll\UzakYardim.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2532

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
b6a4eabbe9ad7c03d8e177c79d51685c

SHA1
117086c3b045a5a0880b608a804d7f1b4df9656e

SHA256
6d358460ce83bd4603ec718d598beb9081424527a3afdb24d9557505c5730b2d

SHA512
91c4c858204066e925647e27fc3c731644fdb406e2568aab8083c059f6afec0b658a4fd92d34435ed61915ed959b00a591fe0bbf35eb702b728253a707ba9dc6

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
308c0e29a21e06cfb7f7e33156a916d6

SHA1
b1d4d3fa8bdf36f027bc0d2cd98096c23b6dcac5

SHA256
2f5f699428733a2ed2dfb63854b442ad3ed93edfae7441bf71dadcdc49bbc7b1

SHA512
41f4bd60f2b8c4df4d6d70797e09e8fa69d2bdd282bcebf568f52434d1ce70ab3a650f6ea0664fc35172e146ad72cf5785eda825c2b75542e10636654713948a

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

Filesize
331B

MD5
c5b80443bc31f2f5c1d2e384c3b82961

SHA1
445a99fa06484d216276b9284eedf25483780216

SHA256
cc8225e7412000f34a92f118af842d585d575498f36fe772dedad9f88c1fe5ad

SHA512
eae9247b9a1abbf8822ce65dbfd2db9b59a57367c7885614b89b8608688753e0c71fc8c955eb1493ef4dd7ba952760ff3476e05d9c177fb40661765a9e408d97

Download Submit