cycbot | 4e62c11c9b8197de0d44869bb9710576341fe37301e931c4b8da665961652c4f

General

Target

JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Size

166KB
MD5

1c8f3ac2263bb7f996ee7685ed3d84e4
SHA1

bbe0e7a306b021674dde855ae3abb18ecf7c421d
SHA256

4e62c11c9b8197de0d44869bb9710576341fe37301e931c4b8da665961652c4f
SHA512

97c4d4876b068c404ef0b8f4bc1d55fe3523f25805c16fb075bd42faa834a85cc867a033d0dd6cd6bdc0ea742ed38c7b1ec6d88a32279d11747cf471e3f2ba0f
SSDEEP

3072:vufEwW90LLrjzeNaDaW1S2XyabQNPxPHtHTk8cRB:2sF0eJW1rNbuFA8oB

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/2368-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2828-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2664-84-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2828-145-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2828-149-0x0000000000400000-0x0000000000445000-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"	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2828-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2368-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2368-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2828-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2664-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2664-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2828-145-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2828-149-0x0000000000400000-0x0000000000445000-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_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2368	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	28
PID 2828 wrote to memory of 2368	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	28
PID 2828 wrote to memory of 2368	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	28
PID 2828 wrote to memory of 2368	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	28
PID 2828 wrote to memory of 2664	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	30
PID 2828 wrote to memory of 2664	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	30
PID 2828 wrote to memory of 2664	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	30
PID 2828 wrote to memory of 2664	2828	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2664

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\DA4A.BA9

Filesize
1KB

MD5
30d8432547ef3e885d3a00b4dd03a913

SHA1
cc4ceba6c458fba90d42aae6ebaa5937d5789932

SHA256
5e5673d31c9b249d5b33ba4c8e1e7c4a747ca8bcf4a13233d5c4bfe3454d3165

SHA512
1268b20c8a6f7f38a43c1f285ca9ebb09e408731353655453667b1713653ab45fe831a720cf396c4e9c9d2100280a8801023794633a9d057e1c0456c4040010f

Download Submit
C:\Users\Admin\AppData\Roaming\DA4A.BA9

Filesize
600B

MD5
6d04db8e66cac5502f80c5aa56b7c93a

SHA1
e83118c31e2e633234513af8c1ad291e844cfecc

SHA256
ce9e6c9b6d81a9d3ebb3e04e29c59a5e7b9975a96781af9b803fb48738159ee5

SHA512
d84b21908fc1beb205cb3a2f5b1fb18f2da502779fa4689c6a74fa5533e0b7c9c4a989034bed2972245060ec12e928755d04a1614b4e9401f566a8eb2c39038e

Download Submit
C:\Users\Admin\AppData\Roaming\DA4A.BA9

Filesize
996B

MD5
dfdb37a68e688f5c34e22a9aaf80bcb8

SHA1
b59b18a900869ba862d839db287c08b15f342513

SHA256
aa1dd930db4322a4dd615488f3c86a38725632a224e273ceb3c507277038ac0a

SHA512
7dd1b17ceb4f0d8c34944f1a4f487ac02becb77200ed84a040691d6d7e08801ff8cbbacdb4f9367995af4d3b2925bcdab8bcbedc32318ac0900012372f7ae4c8

Download Submit
memory/2368-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2368-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2664-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2664-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-145-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2828-149-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads