flawedammyy | 03201982c09f0b8d7e4fb849a882277521e55b6b52e1562c6d19252b9635e09b

Analysis

max time kernel
162s
max time network
168s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
31-10-2023 14:18

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General

Target

cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Size

32.7MB
MD5

3c62d59ddaf151bd4080821d415a08ef
SHA1

70129d7eb37c361aa1f6077fda3b76b6b3bb7f62
SHA256

cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad
SHA512

fee1784e9ce231cd8b13c2caf19c08984934e7f2d236fd5f697d52dcbbddd251f0d87315ade07277fa294c62ced8ae6173c62b557c7dab79603f451970f09938
SSDEEP

12288:Gii1SQxjP6j34G+t2aPHXuTy4RtfUwFDZAQmsNs8wsP6g:O1S6z6j34G+t2afXh4RtxFD/mAsV4

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-1-5-21-2084844033-2744876406-2053742436-1000\Control Panel\International\Geo\Nation	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 1c4441f4750066933b70e2331ddaec2bed0e7b01772d8092f8e72f54882b08521245f2b97f81d009fc5d0080c69f7af300a9fd8b73041d9d05c71c9daf019d500123802d	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d56736608796e5f5e4c105953d7c1e4f34253b26b	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2480	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2480	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2480	2768	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe	28
PID 2768 wrote to memory of 2480	2768	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe	28
PID 2768 wrote to memory of 2480	2768	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe	28
PID 2768 wrote to memory of 2480	2768	cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe	28

C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
"C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe"
1⤵
PID:1824

C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
"C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe
  "C:\Users\Admin\AppData\Local\Temp\cb08d5622b147d7c13ddea2da4462af62030a473e48188f1e0bfd5d7480fbfad.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2480

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

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Downloads

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
1df4d0d4ddc68e849abcc2a8cf9a3690

SHA1
e64da7d12adc5517fa31b2aa5cf6b0544cefb831

SHA256
b2b559142440c8710fc5e6935bd78fcbe55096bf93d367639ad80d63ab8d1eb1

SHA512
c3120afebee7e3f9d488c640898e6bf107a4765fe7e4d671787dc4e2523c65bf39b33fbe10ed10e3fda17c5476a1fdff7f560207f50f88e012c7678dbe31c6ce

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
c5f7b233ac9112ec289fbfc4f701dcdb

SHA1
9eb9a92f4d749914ad3fb787cdddca2355b01e7f

SHA256
0cd7888c0aef389fcfbdd54a4ff973e79f59b4b1fe046815fdaa8f9fd04f7eac

SHA512
266feac437506b95b8525e0b9c478741186134ad68ed18b8ab826682aaae0bf7ceb3781ca2fdc373e6fdacf1b1825929f4398ea010629ba8d16a9015c217774e

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

Filesize
271B

MD5
714f2508d4227f74b6adacfef73815d8

SHA1
a35c8a796e4453c0c09d011284b806d25bdad04c

SHA256
a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

SHA512
1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

Download Submit