cycbot | dcd8c950639bd4ed17b8c9c67ea5f7590040c4a97fc55de6f56bf8276a759f69

General

Target

cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Size

170KB
MD5

cddea6050815701d81b0e09d7f2c15c3
SHA1

34b2edbb877ac76146e90ea5e7f12063bcb57a4b
SHA256

dcd8c950639bd4ed17b8c9c67ea5f7590040c4a97fc55de6f56bf8276a759f69
SHA512

78a5a07f6fd55caf10b61922fd2e9abc9fa92cbffb01fc432450b0b03f59c0b4f4b0de8315a75aec3d5c0fe7dc8522e39838590a70aad688741b063825a14c52
SSDEEP

3072:J6gekefXoHjWWdif83587QVlseQ3G60lUe4eS1ZPPKJ7hN7xpuHE:o3NfXoHJif83XVlsIlUFbbPKjlxcH

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/2736-9-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2356-82-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2068-83-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2068-161-0x0000000000400000-0x0000000000444000-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"	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2068-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2736-9-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2736-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2356-80-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2356-82-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2068-83-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2068-161-0x0000000000400000-0x0000000000444000-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	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2736	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2736	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2736	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2736	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2356	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	32
PID 2068 wrote to memory of 2356	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	32
PID 2068 wrote to memory of 2356	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	32
PID 2068 wrote to memory of 2356	2068	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2356

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\AB83.0D7

Filesize
1KB

MD5
64a0454b75f62d42263350bb33eaba4c

SHA1
2748d502cf93ee069c9db05994062ec3e127329e

SHA256
ea894393b9be787da66cd82c240730a3a95d3f3a733b67d8f0903d347c0592cb

SHA512
db8fa9e7030ca02ac3447423fb8c3ca4bf2f1f1f8f9ccfe3ff183faaa29cb583222cf347e1f1611275a7addf72ce50b9ac211f52f8ef1e997f21c01e9fbf6910

Download Submit
C:\Users\Admin\AppData\Roaming\AB83.0D7

Filesize
1KB

MD5
7c32b386bf1eb273364e070528dfcd11

SHA1
a405198a01752c356df4f0be4dfa428765570a1b

SHA256
1017065efb65b737299cfe970381bc651f5891ed166eb7d9199b9f87dd6ec67a

SHA512
6d41e7742ac256909213f2f462655902bffb889a28ba625ee3e22cbe20083532f4a6343889ac22409f9290211e5e48756e91e123b7d8ff32202563f03e7029e1

Download Submit
C:\Users\Admin\AppData\Roaming\AB83.0D7

Filesize
600B

MD5
aaacadd7eb80310977e9308cc9add349

SHA1
95a8214d7663b08538bcf21541dbd911c4d54f50

SHA256
af93183e432bd39a612ed23d08f8427463f10e3483e44bc64783e70d2a5f1d52

SHA512
f6f8a92bd829f0b9adfb9375b67f9055fe9204f4ae8ea4d4b9f3d1b7e15384dda1ed0cf4fbe95ea60f85a886319f8e7122d645c069c5470da2eecf33dcebac4d

Download Submit
C:\Users\Admin\AppData\Roaming\AB83.0D7

Filesize
996B

MD5
b2de77f0052678e5108922ccf9866b24

SHA1
1e1b3483f0d54d2db3fa545e8f9530675c36ab11

SHA256
df9bdcd662d7a235bae2ca3fa655b6e7dfc37f28becd28dc81984c4d323a5768

SHA512
df666ae849adf1e81f84b4b0807f0c4b676462824b5740dd68ae8daf689ad8a06e9317a4fd336cabb0827f3cdb2a7b837e52553c21175cfdf8c6a86209c2aa9f

Download Submit
memory/2068-83-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2068-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2068-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2068-161-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2068-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2356-80-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2356-82-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2736-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2736-7-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2736-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads