cycbot | ee77f481606f6571a985dbbf50e101449a7546bc35bf71216fd351ec741ac991

General

Target

JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
Size

201KB
MD5

428294be76f32616ddfae8aa38f15f37
SHA1

5b692612176dd7eb40f6c71578380b49a75b6c57
SHA256

ee77f481606f6571a985dbbf50e101449a7546bc35bf71216fd351ec741ac991
SHA512

bfa6b97edef6031de6d043a5d83daca88e2d38e7b602e072bfeae7041056c7378524d53322f194d2137515ea7a5d85270fc8a11822ec86e6ef06536def289491
SSDEEP

3072:JYPVYaCbrH77ZzdfTYJ1U8e+czCeC19pVIovkh5a5MIDDOHs6kz5UEJIr0y:6VYaW7Jd87RPeCTsqk3VIWqU7rF

Score

10^/10

cycbot backdoor discovery rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2680-7-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral1/memory/3052-14-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral1/memory/2860-92-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral1/memory/3052-184-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot
behavioral1/memory/3052-221-0x0000000000400000-0x000000000044D000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3052-2-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/2680-5-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/2680-7-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/3052-14-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/2860-91-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/2860-92-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/3052-184-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral1/memory/3052-221-0x0000000000400000-0x000000000044D000-memory.dmp	upx

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	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2680	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	28
PID 3052 wrote to memory of 2680	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	28
PID 3052 wrote to memory of 2680	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	28
PID 3052 wrote to memory of 2680	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	28
PID 3052 wrote to memory of 2860	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	30
PID 3052 wrote to memory of 2860	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	30
PID 3052 wrote to memory of 2860	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	30
PID 3052 wrote to memory of 2860	3052	JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_428294be76f32616ddfae8aa38f15f37.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\AEE8.32D

Filesize
1KB

MD5
fa9e28c45a27c6bf4fa4077b0ae00edc

SHA1
5f2d2ff0ee5acf780933f663e7cca24448fb0b4b

SHA256
0992b35abcd6af564ad8a1e07f9167fe01f02cac280ead69305bb92a917aba58

SHA512
d196bdc4414b48e27499ee222870e3148da73b7b533eb348811735a31f27805dbc35e4901d5707c2588883072aec30728d5f3beddf32fae27356c245dde6398d

Download Submit
C:\Users\Admin\AppData\Roaming\AEE8.32D

Filesize
1KB

MD5
e8b4a49bbf65ecf50ce1dffad998240f

SHA1
7143a5e3db87b865c6fa6dd5b8f5a41b7212616d

SHA256
a11405d098b6e8689682a291ea1329a00cc42e3185e4c2ccf8512369217d7747

SHA512
86d17874d06945050837425d4754b3285b3e1f2e27fc696b91df65c17a8e73e7ac11b57f006bb26bdbfe3e7384be72b92942b85ffc619e4f99d763fdb2e55810

Download Submit
C:\Users\Admin\AppData\Roaming\AEE8.32D

Filesize
600B

MD5
1faffbf7131551bcd25dc0365bc5351f

SHA1
21a175f857256fbd3b5e11067479a7d951eeba79

SHA256
59ed19d6e9e07db74ee365b1e04538fa9a559fe4d0ca383a557dbf5c213cb9cf

SHA512
41b7c969ae7a46d62cbc0d87bf55df3496c958cfce6553651f8a6b5d63982f56e4bf769e0b48b23398e81f54b500685b05d95f3d6a0d6fb623682809f1cee6c1

Download Submit
C:\Users\Admin\AppData\Roaming\AEE8.32D

Filesize
1KB

MD5
89015f1f7d9796d0fcff256ec50f6a6a

SHA1
f709268aa00c337cb62ae5c5ca1a713452f4cf23

SHA256
ca226abe3a9153be05f48cb678df641200123f7f7e5291c3f2eb1c09b740c0e6

SHA512
3d251e6dbe82272b5f25d13200694a285de1866dbc126d3f8d38e71b34e6ac82521f7e48cba086d55e0f14f313c17b71d823b5cbd759ddaaca15d1e9fb74a33c

Download Submit
memory/2680-7-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2680-5-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2860-91-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2860-92-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3052-14-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3052-1-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3052-2-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3052-184-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3052-221-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing