cycbot | 262949f4500b96fff15538b0686879572cb536025244eead92c8cf7d0501a100

General

Target

JaffaCakes118_25b9c5483f15027fec145650626285e3.exe
Size

187KB
MD5

25b9c5483f15027fec145650626285e3
SHA1

39da845eba17cf2eac66f18ed1758e07d3c5b654
SHA256

262949f4500b96fff15538b0686879572cb536025244eead92c8cf7d0501a100
SHA512

5b5c4d80608cd4a8204c585b5f04d00694f4de669b77c982e8979bf55ea5f93a08d90a7729116e12b074a5dbd7bb67e3aa0a36bda8c58df5f28d960f499ea346
SSDEEP

3072:rV0ZL6tCiE9wWR0piinsC58e6cCWYiieBO2AcpBx+dj63r0PKlq/MiokM5Gh:rztCiEis28zAYiFBOJ9du3r2ykMk

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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2276-13-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/2480-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/340-81-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/2480-188-0x0000000000400000-0x0000000000452000-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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2480-2-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2276-12-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2276-13-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2480-14-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/340-81-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/2480-188-0x0000000000400000-0x0000000000452000-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_25b9c5483f15027fec145650626285e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 2276	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	30
PID 2480 wrote to memory of 2276	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	30
PID 2480 wrote to memory of 2276	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	30
PID 2480 wrote to memory of 2276	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	30
PID 2480 wrote to memory of 340	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	33
PID 2480 wrote to memory of 340	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	33
PID 2480 wrote to memory of 340	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	33
PID 2480 wrote to memory of 340	2480	JaffaCakes118_25b9c5483f15027fec145650626285e3.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe startC:\Program Files (x86)\Internet Explorer\D3AD\C70.exe%C:\Program Files (x86)\Internet Explorer\D3AD
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2276
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25b9c5483f15027fec145650626285e3.exe startC:\Users\Admin\AppData\Roaming\D01C1\95ED3.exe%C:\Users\Admin\AppData\Roaming\D01C1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:340

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

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Downloads

C:\Users\Admin\AppData\Roaming\D01C1\10E8.01C

Filesize
600B

MD5
e9cac4d0e166d873e63c2a495f54e5a4

SHA1
af3d708995ab2fa7037ad618720ae69b4c94d6da

SHA256
e123908ef46860c46837808cd1a1ec9d2739ca0477c880bece68cad82a5dc169

SHA512
9016f8af4c550523a13387c0cf0957fbb6bdc3e3ab21b9f5c997f37cd8e4330fa9a581139b0cf653dd7c0495e76871b15ee93a2014eea05286314a4e0f407d75

Download Submit
C:\Users\Admin\AppData\Roaming\D01C1\10E8.01C

Filesize
1KB

MD5
2f69cabb8878505e5d0d2db5cbd3f0df

SHA1
e86dfab8d91f3500529bc63b14708159925a18e1

SHA256
6929c8516b9081b8dd72935a777c60c032f2a3241f217f7df2e0c0538e1ec684

SHA512
0518298c38c402424639dc661c5a96f2a37235c153cee5bf1a3aea985c7b7f7bbd7c9865d9316abb98a42f0160b9bf4819c61cbc655f8a44069c63d6aa51d7c2

Download Submit
C:\Users\Admin\AppData\Roaming\D01C1\10E8.01C

Filesize
996B

MD5
3599868364b832427e20aa22b80a3fb9

SHA1
eb80b59e90759ec658e1d39d00d8919416a3a39c

SHA256
194964d3e04f54835828163d72592d56a0c622ed6027af5eeac01d69e418671e

SHA512
b2535aa58cb5c97989a23b2a4ca7c37945dc1879c24da1210bf0892a18e145de2e10af0798542c4d54e51dda1a49610feb1e626f073f01bdfbfe80669cae24c9

Download Submit
memory/340-81-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2276-11-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2276-12-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2276-13-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2480-1-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2480-2-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2480-14-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2480-188-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

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