cycbot | f55edd6c46a23022374c0bcbf678be55beeb7fcd86ee89ba642600a56ffefd1c

General

Target

d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
Size

165KB
MD5

d26c520df00a7bde96324847f65e7148
SHA1

69d20c71a5b08d27a361810ce452071006558537
SHA256

f55edd6c46a23022374c0bcbf678be55beeb7fcd86ee89ba642600a56ffefd1c
SHA512

f5bc5df0a10435f064bfeac5e908e53f4133d9cdc96f6a468bc3b895af559c602790dbafbb385f1491c15a993ae6756fb65b5a730cebf0d987661e1818839265
SSDEEP

3072:Yk4HjukBgBp4tM6ZCehbRFqgLnXNQdZN3mKFAvwBrgt+DyQLOP8dcwdR:YVnBgnwQehbRFt4ZNBAQEt+DyQX

Score

10^/10

cycbot backdoor discovery persistence 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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2672-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2672-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2080-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2080-18-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1676-138-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2080-139-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2080-313-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\B006A\\93024.exe"	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe

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 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2080-3-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2672-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2672-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-18-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1676-137-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/1676-138-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-139-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2080-313-0x0000000000400000-0x0000000000490000-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	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2672	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	28
PID 2080 wrote to memory of 2672	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	28
PID 2080 wrote to memory of 2672	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	28
PID 2080 wrote to memory of 2672	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	28
PID 2080 wrote to memory of 1676	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1676	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1676	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	30
PID 2080 wrote to memory of 1676	2080	d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe startC:\Program Files (x86)\LP\24FB\9F7.exe%C:\Program Files (x86)\LP\24FB
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d26c520df00a7bde96324847f65e7148_JaffaCakes118.exe startC:\Program Files (x86)\6A209\lvvm.exe%C:\Program Files (x86)\6A209
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

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\B006A\A209.006

Filesize
996B

MD5
c4855f267f1e9923b1bea677ed0c35b5

SHA1
ecde86f56567caf22d92d616eeb9924ff1a2ccc9

SHA256
ceeda3fa3a52e562dda1166cb82a49d332a4ff110eab17769728dbbedb16c0de

SHA512
18d7d87c36b6bee9c5bb7432067b7d5344077af24cfc699ac7c44fef9c4219d8e0e10c5e4a41ddc9ecea7fb3cbe9d618a40ee64ad8ab94dbc881846bc1f5b738

Download Submit
C:\Users\Admin\AppData\Roaming\B006A\A209.006

Filesize
600B

MD5
d7a2f2a1fa36f7aad22ff08cea8471b4

SHA1
d54a21cf4080727ea9ec9f998f8a2116758eac60

SHA256
ba82937312e201093b83587fa7d13dceea279ce330e1c736b601b9fcb685cb3d

SHA512
7093c652823eee45a7e0d37401c2a17d26e44fc0ab3b11657083e3664f498ef3aa5c4c88e28c34c4b2a132217cacc8c07dd5063066f856d916ef1dffe3b16697

Download Submit
C:\Users\Admin\AppData\Roaming\B006A\A209.006

Filesize
1KB

MD5
eff812b0c3c2b4ff2da476df5a5e47c9

SHA1
b5c98e9e3fd241a13892a22bd53b63ffe7dca70d

SHA256
abafcac9138e17671758a42ba3e02ac66d2c964634dfe39a74f6c5c5e52d5261

SHA512
f2c03da480a1c2f055f02ce24e2c411220d32a23824a24063b163f91f3c2d133e8860d3ef3c62a06f363128bc60cc9795861daf1937ba10e804426fcc13cd3a0

Download Submit
memory/1676-138-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1676-137-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-18-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2080-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-139-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-3-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2080-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2080-313-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2672-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2672-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads