cycbot | 72f72c3e0f03141457b26f024e563f0c016e71859e457fd453aa9b205c549dc7

General

Target

JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe
Size

180KB
MD5

ac71b972ca228261e80224b728710bf9
SHA1

90a335b7c3d543f2de640a2f7bca59158942d462
SHA256

72f72c3e0f03141457b26f024e563f0c016e71859e457fd453aa9b205c549dc7
SHA512

8461fa2dea50f6007b845be5a33e499274e4e23f7866b5c4ae0339e9d4898a9389ed056767afd2d9db43ec6d2616b1af4f68638678b0b914ef943f16fc3999ac
SSDEEP

3072:WxYD/9ctwl0gYjQFIRW1hl0M6MuA+vhrodZyKaRZnIW5M1ZjLIc4Bz:+acPAIRW1hl0Mpu9vFKYKqIWQjLY

Score

10^/10

cycbot backdoor discovery rat 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
behavioral2/memory/3496-10-0x0000000000400000-0x000000000046B000-memory.dmp	family_cycbot
behavioral2/memory/2000-15-0x0000000000400000-0x000000000046B000-memory.dmp	family_cycbot
behavioral2/memory/364-86-0x0000000000400000-0x000000000046B000-memory.dmp	family_cycbot
behavioral2/memory/2000-186-0x0000000000400000-0x000000000046B000-memory.dmp	family_cycbot
behavioral2/memory/2000-191-0x0000000000400000-0x000000000046B000-memory.dmp	family_cycbot

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2000-2-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/3496-9-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/3496-8-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/3496-10-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/2000-15-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/364-84-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/364-86-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/2000-186-0x0000000000400000-0x000000000046B000-memory.dmp	upx
behavioral2/memory/2000-191-0x0000000000400000-0x000000000046B000-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_ac71b972ca228261e80224b728710bf9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 3496	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	83
PID 2000 wrote to memory of 3496	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	83
PID 2000 wrote to memory of 3496	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	83
PID 2000 wrote to memory of 364	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	86
PID 2000 wrote to memory of 364	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	86
PID 2000 wrote to memory of 364	2000	JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3496
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac71b972ca228261e80224b728710bf9.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\2592.C6A

Filesize
1KB

MD5
8db2f3adda400cce27cf255141a1f060

SHA1
7386e4971cb029fa8737fb597da35e6150476848

SHA256
eb30798395732c4b8b25fc81ba6ce69feb6968c52d7512f0c5c92a31fd8cce42

SHA512
b77218097a81dca5f06b13feaa4b6791ed20e7caaf4065c463aac0d437e445cb7ace3a9888120856441b4da069bdfcfe0855eec423bbc92b6666ecc1f6951021

Download Submit
C:\Users\Admin\AppData\Roaming\2592.C6A

Filesize
600B

MD5
5ba026c8353b33911ef13a1fa1b9585a

SHA1
c1a4bf247458bfc193150def790c947f71d357a4

SHA256
6b5dad3fa4f078126b13e14ecccda2d73417ce9478c112fbca95764bfd0c5ff8

SHA512
30677ead695527492d90c312ae567f57f91fc09e66459635345c7c7d57ac7924a8a751731314028a8f94d8fe4b3bd52d7004a454132d9f7f5d812103919dcb58

Download Submit
C:\Users\Admin\AppData\Roaming\2592.C6A

Filesize
996B

MD5
ea756c3d1e0e56aa271bbb7264d93f63

SHA1
76ff90d498664ed65c029ea15c972e45e5f810a7

SHA256
a6267f77c270065b2fd26edf7f9f89f20e59ec1010b7ca01b3173457aee04b97

SHA512
9653542451b17117974ceacc8336b1c06ff377e7f3e5f1453c2f3a5adfdd8c001c66354e161f44cff1225c8e0c99dcb900c92287c56122a11f307c6b00dadf75

Download Submit
memory/364-86-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/364-84-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/364-83-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2000-15-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2000-1-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2000-2-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2000-186-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2000-191-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3496-10-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3496-8-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/3496-9-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download

Analysis

Sharing