cycbot | 71823b149ec0e7681f1910ae9ccbd27d80a2e05f279329d134b5d337ff21315c

General

Target

JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe
Size

184KB
MD5

b010667c69e65496ea1f68a10e504b13
SHA1

4aac6ce89a811f1d5e6c85148fb0d7acd7177ea5
SHA256

71823b149ec0e7681f1910ae9ccbd27d80a2e05f279329d134b5d337ff21315c
SHA512

476f16b99fe92b3421ac17fa4a4aa10bf64ea01771409bba6bb1e5ee271bd8b745f52b05b3976858a43583f69f46e9f60176c28918f553f038fba7bc41f92ccd
SSDEEP

3072:Rk0GEfvu0LPmw5/cpXszh1OS+LyeRCBPBKa/kGSzEieh1w9CHnHbTAmMW:RkrIvGC0pXszhQS+RCFBKaHST6HHL

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/2844-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2680-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2296-87-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2680-88-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2680-162-0x0000000000400000-0x0000000000442000-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_b010667c69e65496ea1f68a10e504b13.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2680-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2844-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2680-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2296-87-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2680-88-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2680-162-0x0000000000400000-0x0000000000442000-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_b010667c69e65496ea1f68a10e504b13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2844	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	30
PID 2680 wrote to memory of 2844	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	30
PID 2680 wrote to memory of 2844	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	30
PID 2680 wrote to memory of 2844	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	30
PID 2680 wrote to memory of 2296	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	32
PID 2680 wrote to memory of 2296	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	32
PID 2680 wrote to memory of 2296	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	32
PID 2680 wrote to memory of 2296	2680	JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b010667c69e65496ea1f68a10e504b13.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2296

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\0240.5ED

Filesize
600B

MD5
98eafeece3c6129a6188badb1341f9cc

SHA1
ff8ce07f12378873f1a052bc3ea7482e9a79fcd7

SHA256
e961df786def80c8fcbb2e4d50880bf62265fac6b2395eac81cb704fa32b90c8

SHA512
1672b94e063c56b7afa5959f6a6c81a297204a5e68ebacbb6e71f6ae91a5ce1ac941bdb020e4e14d2c733a4c7b71e9200f1d9baf5d17571a488cbdae54e91a52

Download Submit
C:\Users\Admin\AppData\Roaming\0240.5ED

Filesize
1KB

MD5
a4082f63aae77c5da175fe2ccceb5917

SHA1
d499d8779ad802d0096355ebcf59f5f75be97c9d

SHA256
92aa25e4705a0ddd7c39f6416e5b5b1b12e11ab05f670f1f13a7ae757be53fa2

SHA512
1a928b391b25590921d9fd4f20302d68918d4c0bfb42231ed8d58c47cef16d4acc51275c83b843d6c7ac9d18974bce09ae1faba8ff2f282afe86d6943d4eb800

Download Submit
C:\Users\Admin\AppData\Roaming\0240.5ED

Filesize
1KB

MD5
1388fd73c41d1c8a76e8bc2f0c42aad8

SHA1
9438d4054d1fb016b0de69ea5e971dd527df77dd

SHA256
4bac85bee7960812f0aae8ffb25c1555dd0d14847050bcc62a1b763338355054

SHA512
583d5d4737e3812119461972a5428177a89933807aa121b2c202441333f3b346b50720b09f0abd0bb464b78e20e599ea959d076156928a4e9cbe2d41c67f3975

Download Submit
C:\Users\Admin\AppData\Roaming\0240.5ED

Filesize
996B

MD5
8bceefb5ea4911603899b72bba11573b

SHA1
001c6f5d8db9f66e84f94ae7b9360a569fc682b7

SHA256
3d68c28c12091444a1c9d99a7a4e1ead88c4ff0ce5fe48d66f1d61a9219405c4

SHA512
620445b2c95d1d2d44088fe208faaf11be6c7b8503a38dc2a68a526c8a08151ffbf3083cb37ab11bbbb17dc082eaa904dbfeb7c894c41c5ca6d8e9a88505e6b0

Download Submit
memory/2296-87-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2680-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2680-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2680-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2680-88-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2680-162-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2844-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads