cycbot | 18bfca8e9eb8c9b7490d6cc44969fd0c1fea5f752ce2166a7743794804533be9

General

Target

d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
Size

178KB
MD5

d375011276a4bf0ad84158181b0d6497
SHA1

7c81411ebe9f2ed35c24623203bceceb05bb2eea
SHA256

18bfca8e9eb8c9b7490d6cc44969fd0c1fea5f752ce2166a7743794804533be9
SHA512

56427af6254bad9673f4fa5d25b8a59a31728fa4e384559a14e16ee8725f84ad00b95a9c6bcf0e1d7a1f90de1da09c5227d545ef2a443f5950c6e7f2f720fcb7
SSDEEP

3072:J3Qv9+YORtMFRGW4eduMrMG/1TeMUoBfGabLmlh9BYPbkXwihCxlLkY08D0Xv449:as/7MF94egMrMsdeM1Ma/mr9CP/vJD+1

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/2716-48-0x0000000000400000-0x000000000044C000-memory.dmp	family_cycbot
behavioral1/memory/1732-49-0x0000000000400000-0x000000000044C000-memory.dmp	family_cycbot
behavioral1/memory/1732-108-0x0000000000400000-0x000000000044C000-memory.dmp	family_cycbot
behavioral1/memory/2712-110-0x0000000000400000-0x000000000044C000-memory.dmp	family_cycbot
behavioral1/memory/1732-215-0x0000000000400000-0x000000000044C000-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"	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2716-46-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2716-48-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1732-49-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1732-108-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2712-110-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1732-215-0x0000000000400000-0x000000000044C000-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	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2716	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2716	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2716	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2716	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2712	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	33
PID 1732 wrote to memory of 2712	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	33
PID 1732 wrote to memory of 2712	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	33
PID 1732 wrote to memory of 2712	1732	d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d375011276a4bf0ad84158181b0d6497_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712

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\41F5.9B3

Filesize
1KB

MD5
bfe548e45a146f1a38fc5729ccbd4a40

SHA1
5bbeefd4717280607b1b91cd79360c7528fa262e

SHA256
bf9d76db79c5de9e81ce1ff563a51eef1e7c0e83255281e0cdd6049352e82271

SHA512
c820d7be7da4585b9e0af261c91a6a864efdee84e95aba837ab600094e4a0b3d294b81f863a474dbbc451026ad8436f2e9ea0ea5042a3e0f252946b6873c875e

Download Submit
C:\Users\Admin\AppData\Roaming\41F5.9B3

Filesize
597B

MD5
2dd157497138a62c0fd3c2a408f31f14

SHA1
ed2375f3d065d265905b22d20cda9bd131c85e8f

SHA256
daaeae8ea95300d482ffe85f876eeaeb3ff88d1ee4cf707b461ca8517795a125

SHA512
3cc7341bdee6f1319bac907d6dcd8a91ce92be4e5207380d15b017fe3c5ab3f9258193ad9a04f3e582ae301fc28a771f042b9a63c344b2be6a89a7cbfc86a1f2

Download Submit
C:\Users\Admin\AppData\Roaming\41F5.9B3

Filesize
897B

MD5
673cfc44792ddf598589946205ed9c22

SHA1
dc77d50fbc1158d4a15365748625ff2482f002ed

SHA256
26c3efbc16b56bdb60b52c368b3887af20e403b9e7275dc095abd82427ad9aaf

SHA512
c7b42eabf0285fdab605f15406e15c878f42b851dad8ee06bed0cf4183265496eea8cb896cf6ce97277c78a3f670cc5b6341a1fc6902882efca482c96ca7b3c3

Download Submit
C:\Users\Admin\AppData\Roaming\41F5.9B3

Filesize
297B

MD5
3e48760585491a40f68932ec167d02a1

SHA1
2df996318d1a76b8e2eb4ec8ccacfe22ad65d1e4

SHA256
d21ef4bd0323e79eb60a77ae65e28abc14902fb9ad00e7162e030ef520543006

SHA512
6b32936e922e0c3b2ed2e40d74f13b7dedb216dbb4f4ca47f58a4fbe62dd6a9b02cdaa25cc0a00a33a3e91dff6bb3faf125b54e7b531a15e5f1b7a9abbf56b70

Download Submit
memory/1732-1-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1732-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1732-49-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1732-108-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1732-215-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2712-110-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-46-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads