cycbot | ea81e90a3a839b4b13e69a24cc41d2016961d5ad8a3285dd7bf7b119750685c1

General

Target

9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
Size

187KB
MD5

9d73a8dc5917187ff094b1a6028960b6
SHA1

4690c94ab09e6b12cac5dc8d9c34bae4b7e8a8bc
SHA256

ea81e90a3a839b4b13e69a24cc41d2016961d5ad8a3285dd7bf7b119750685c1
SHA512

c4955e7a0837a0674dc489eb910f9a1d8985cc6ea85c9d941c07fa3bc34eec0644cbdba4c4d3ea4e3378944f178c49388045e588418751b7d70453199b2ccc43
SSDEEP

3072:QigEsY5K4R+IXrGkXPLxXjRbSWLTqTFmtG0ezmbD3yik41xIb5hel4JoV++4FVIj:cnMK4R+IXr/XPFXjfTcFZPzmbD3yik4p

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/2752-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2692-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2140-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2692-127-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2692-178-0x0000000000400000-0x0000000000445000-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

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"	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2752-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2752-4-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2752-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2692-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2140-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2692-127-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2692-178-0x0000000000400000-0x0000000000445000-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	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2752	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	31
PID 2692 wrote to memory of 2752	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	31
PID 2692 wrote to memory of 2752	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	31
PID 2692 wrote to memory of 2752	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	31
PID 2692 wrote to memory of 2140	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	33
PID 2692 wrote to memory of 2140	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	33
PID 2692 wrote to memory of 2140	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	33
PID 2692 wrote to memory of 2140	2692	9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9d73a8dc5917187ff094b1a6028960b6_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

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Downloads

C:\Users\Admin\AppData\Roaming\A463.38A

Filesize
1KB

MD5
ddca9fe518bf023a17adabdb3527b5bb

SHA1
2360c06816b90e8f2012fc18d94d132bfb597899

SHA256
cca072bced9a23f63a2d3741e007e3f47b6d30dcbb3ae1db28b09b4623fdf64c

SHA512
19e943e75eea9b98c08cbb397b882b1ee7d054e6def1656eed3d2e8433b1fd90bb937da37038056165493a599f5fdb162af619ed779f7bdfd452b03cf19bdc51

Download Submit
C:\Users\Admin\AppData\Roaming\A463.38A

Filesize
600B

MD5
edae6a041e4d5c96e4345b8d9f7ed3a9

SHA1
b8ee80ccbffcded15f4e2097a105dd9eab9f5c47

SHA256
5372ad741f57467d3cba4b70a70de435d256d1ed6449c0851c09a357faa5e225

SHA512
a4c212fff6211595b68ca024c7246849bdff8d24e88af987e9685b6cea10311b32cde553842d6c5ef4ed1c2d0e0ff747089a3fc7f303b23d6cf685f018d8e2c2

Download Submit
C:\Users\Admin\AppData\Roaming\A463.38A

Filesize
996B

MD5
c128e9284b44d4a30c1f2713dfeee787

SHA1
3c122a7e3f9d8c62fb3425e1e976eea36054eb7a

SHA256
ca264b4059d0cb51fb375d0831fd64be902673df39bf679c6a1c1e98ba061ea3

SHA512
1644284678e44e0ed7296e8d939d75ce6f787a949e63a9c6e8d98befe25f0028945a08eda4986500534f2aab28614b8a2cd60ba5ac615289f82e59d79ca8c2b5

Download Submit
memory/2140-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2140-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2692-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2692-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2692-127-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2692-178-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2752-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2752-4-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2752-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads