cycbot | 4d81f4e73f7694f509182f62b2635df8ef2e39d9e6a9bcb65c15b753ea62efcf

General

Target

JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe
Size

174KB
MD5

81d8d81c999cb15f2705ef51c8d3381f
SHA1

e8d2b638eef6932f97451cf08c64ceddf35ca9c2
SHA256

4d81f4e73f7694f509182f62b2635df8ef2e39d9e6a9bcb65c15b753ea62efcf
SHA512

2e151a6e48f33d455e4abe962a8fc94e2b84bdc09bbdf1cec3439133c7951dfa8f0c9bd8be73a0453f6484d1ca2cdeaf2ad1571768a64bea0135f2602d02875a
SSDEEP

3072:BHPaVdTJPkGxtyiGWvYIfbhdkPZjEgVFjChsILa1iFRYBeJw9uOcW2MtuJMIi:JPaVxxEiGWgkbhdwugqQaRY+JW5oZi

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2164-8-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2380-15-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2576-69-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2380-161-0x0000000000400000-0x0000000000463000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-2-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2164-5-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2164-6-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2164-8-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2380-15-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2576-69-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2380-161-0x0000000000400000-0x0000000000463000-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_81d8d81c999cb15f2705ef51c8d3381f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2164	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	30
PID 2380 wrote to memory of 2164	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	30
PID 2380 wrote to memory of 2164	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	30
PID 2380 wrote to memory of 2164	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	30
PID 2380 wrote to memory of 2576	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	32
PID 2380 wrote to memory of 2576	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	32
PID 2380 wrote to memory of 2576	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	32
PID 2380 wrote to memory of 2576	2380	JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81d8d81c999cb15f2705ef51c8d3381f.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\A21D.EA5

Filesize
1KB

MD5
15d589eee306f5e5324b93f137f49fac

SHA1
5225623305fba836f32f1d4d3e26bdaae0745872

SHA256
982a981a88bbf655c86f249fb0fe946ff0e0616c1735716b5ce3d00e91038418

SHA512
86f4bab05dc8e8f893ee22c5a3d3983c6bceb4e543a903b5f1e92c53d518de4aa87a8909c0ef8bc9feef8836378a360974d36cbb446ab9b785bd7c753ad0fe56

Download Submit
C:\Users\Admin\AppData\Roaming\A21D.EA5

Filesize
600B

MD5
941af99e71d357bdc9a2aea5b8cbd519

SHA1
d8382b66e96d4c9726505c42a7e381e60d0531a6

SHA256
dfcb9b8fe569907cd133fc07ec6f372a5ec9241af45d7fe30d02f5d87342dc86

SHA512
ecf6ba78c73edff991929f98d9eb71c68a82bbde2745553806790d9e84e93532756ff1da4c7c983d34000efea8504b28294ae93f341a7c26446aa16f5fdd3c8f

Download Submit
C:\Users\Admin\AppData\Roaming\A21D.EA5

Filesize
996B

MD5
624f15b18988d548de355101b29db910

SHA1
42bd8baff47c91836b27e880d9f1df523eb00a19

SHA256
99bb555eb1bf260e2dde6f61248518a60b089a48985e3135eccec93a24f7b489

SHA512
7f2d908b8ddd277efcf0b224e19ddab2469aac6327433563364d685b428b7f2ba0857c292bfa2e366803cc9d0bdd852f30cc4e97a25fdc16961a645417e10a80

Download Submit
memory/2164-5-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2164-6-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2164-8-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2380-1-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2380-2-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2380-15-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2380-161-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2576-69-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download

Analysis

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