cycbot | 415596545efdc9e7d8ecd2fc2db70ed8ff6ff9246ed8e8721d873beae24b37ca

General

Target

JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe
Size

187KB
MD5

973ad6b1d0d4ed587a9daff89170b2c9
SHA1

407101eb9884a60779c0099064303e45d54b7afa
SHA256

415596545efdc9e7d8ecd2fc2db70ed8ff6ff9246ed8e8721d873beae24b37ca
SHA512

6e76c783a20cb8fea7c008be79fd737fce6bdd4afd6613a69f743cc32ff22bb74330068783b1eeecef30d7b00573b2d0e9ba11f7b703cc8cb05c15b3ace07a93
SSDEEP

3072:umpgG33H1u5F79GNgPrnw+fg+UbH8eIA6EfI73VrarwObkeLpp+RuDN4o:mwHobkCbw+fAmdzLparwWLpgSGo

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2336-7-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2280-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2792-79-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2280-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2280-176-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Active Setup\Installed Components	explorer.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2280-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2336-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2336-7-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2280-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2792-79-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2280-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2280-176-0x0000000000400000-0x0000000000445000-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_973ad6b1d0d4ed587a9daff89170b2c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2864	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe
Token: SeShutdownPrivilege	2864	explorer.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe

Suspicious use of SendNotifyMessage 20 IoCs

pid	Process
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe
2864	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2336	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	31
PID 2280 wrote to memory of 2336	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	31
PID 2280 wrote to memory of 2336	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	31
PID 2280 wrote to memory of 2336	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	31
PID 2280 wrote to memory of 2792	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	35
PID 2280 wrote to memory of 2792	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	35
PID 2280 wrote to memory of 2792	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	35
PID 2280 wrote to memory of 2792	2280	JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_973ad6b1d0d4ed587a9daff89170b2c9.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792

C:\Windows\explorer.exe
explorer.exe
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

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

Query Registry

1

T1012

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\5644.994

Filesize
1KB

MD5
343f6987f8592a35ed803ecd06587505

SHA1
9b3a5c3c08442e79c8e52dab9b4a28baaf7b865b

SHA256
09c6050eb389ecae7399183c1443eb3727f419eb1edf47c793df7fcc886031c4

SHA512
6a08a083f266bf8c0765c6a4e62587d66668e6829cd39a2e28a700d79994df4e107e8979f186626f86d09aa3f12817b73ddc5befe25ded66ec184f24fc84fd2e

Download Submit
C:\Users\Admin\AppData\Roaming\5644.994

Filesize
600B

MD5
7e6c98f5b30e38deab73c1537ac2d0f2

SHA1
0ead772f331b102b65eb9a2a261cfdc95020d85a

SHA256
f4e6842b5b6bdd3cd3318c28a9411d13a222431d998b953bddf16171153436e4

SHA512
3c740144787e49c0ad34bee6df396a7334abe9f7e5d20ae4a0042cf3fae5b093113b07c42fd85b4df2b4681001003932caed8524e14c6614b817fdc0e62a80cd

Download Submit
C:\Users\Admin\AppData\Roaming\5644.994

Filesize
996B

MD5
f00f7e6b59fbd378e5c9a545d1fc6637

SHA1
421fed328b69c49e37606cb3c4008577ecd7197f

SHA256
f8d1e5fe8407424ab4b16a18cd66e90269c9032aeb0a471f233c3fc76a9b708c

SHA512
f7e33d096820776a385f11baec1159b0166793a3c36e0f75976ff5e2d251a5f39b02f66e1afc1c09afa7cfb94abfbfdc3e90151dcdf6af8179de424154dba693

Download Submit
memory/2280-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2280-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2280-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2280-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2280-176-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2336-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2336-7-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2792-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2864-183-0x0000000002A80000-0x0000000002A90000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads