cycbot | 4e8db6891eb40a47d9f9bc23a81c7d2d887aaeb434bad1d44a1729d987838227

General

Target

JaffaCakes118_409da52da2338efc6c12012533c69948.exe
Size

178KB
MD5

409da52da2338efc6c12012533c69948
SHA1

4969ed34a199dcea814c9fcf6ba2fa1ef0e355c4
SHA256

4e8db6891eb40a47d9f9bc23a81c7d2d887aaeb434bad1d44a1729d987838227
SHA512

a7caecc2669f3705a1e191b15e2d14e16b14025c6b476f110c6ace05a162e4aebbecbe8073c6ff686b42c7d347eb3e7dbb1a2bc88d67a5472beabe6eabcec45f
SSDEEP

3072:MhmgqIPf5nEaXXF/utBkU0RI07+ycDIUZgFSGtHMlpZzAqW2pIaX0Ycii7VjzwFq:UqIPxnEqXFmfkhgDZZgmBhVpIlDV3w

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/2540-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2380-16-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3044-78-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2380-79-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2380-145-0x0000000000400000-0x000000000044B000-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_409da52da2338efc6c12012533c69948.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2540-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2540-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2540-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2380-16-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3044-78-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2380-79-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2380-145-0x0000000000400000-0x000000000044B000-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_409da52da2338efc6c12012533c69948.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_409da52da2338efc6c12012533c69948.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_409da52da2338efc6c12012533c69948.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2540	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	30
PID 2380 wrote to memory of 2540	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	30
PID 2380 wrote to memory of 2540	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	30
PID 2380 wrote to memory of 2540	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	30
PID 2380 wrote to memory of 3044	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	32
PID 2380 wrote to memory of 3044	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	32
PID 2380 wrote to memory of 3044	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	32
PID 2380 wrote to memory of 3044	2380	JaffaCakes118_409da52da2338efc6c12012533c69948.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_409da52da2338efc6c12012533c69948.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044

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\0CC8.93C

Filesize
1KB

MD5
605b12c3a6a23d94aa13668f7ad223e1

SHA1
01c7cb779478e77f31616142944a1a37b110e591

SHA256
cf16a522dcd8903ac686b0666b5505acf36a703aae62034c48bc7148114cf9bb

SHA512
5d4cc99b3725e3fcb1ab098f596cdcf78e64c0d17915328e29314c6144631818af144f0022eaa26ea35a5788c6a632d4c55f4eddf63315a66120cd612f55b702

Download Submit
C:\Users\Admin\AppData\Roaming\0CC8.93C

Filesize
600B

MD5
ead1ab1db8d2547d9d47a835aecccb75

SHA1
3f0d830a61754e02753c23933b7e66c9626a27f1

SHA256
9d5b092000d60cdcb984b193f96164315b8cc3e79cf57b31cf8b15fc8ea7b3dc

SHA512
870fcaeba9e91db600faca6ba9e61387c66a2235130a8233a5096eba88788b97d4302177866b117e6586eb8074252cfedcf9f0732f41f8329f37db3838669758

Download Submit
C:\Users\Admin\AppData\Roaming\0CC8.93C

Filesize
996B

MD5
9338205f6b443efb0d5197c9a83d7ed1

SHA1
62defa08e5c695e5c73d23734dce7c10da58704c

SHA256
02eeeb0fb08223f54c0dc2a3186ef1ede503601a09579996f0817758efe59a61

SHA512
f8694905dd286a19bcb0675a318a33707d14115bec69e415e8fda28716b0f0321d36cdac001187e235b733dfd0e547f5a92e76de09735b7abaf9f6744a740a2c

Download Submit
memory/2380-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2380-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2380-16-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2380-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2380-145-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2540-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2540-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2540-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3044-78-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads