cycbot | 107e88a38db94003b3ccbb3c7486b3ac86ce76e87385eb0871a0191a52d818be

General

Target

JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe
Size

163KB
MD5

6869ab9b7eed079e081d725895f529b2
SHA1

eb8f171c44a91848259933e6f489d8e06f271a11
SHA256

107e88a38db94003b3ccbb3c7486b3ac86ce76e87385eb0871a0191a52d818be
SHA512

44db1f2a2286782f09cd45d9b7057d8a9855d35e4359a0dd9a8755e7d2e4bc53a71ac47756ca3875076d6294371da79b88eca9757c9e582c527a6a7a2c048d70
SSDEEP

3072:adjuVLgf5ymKq40/z09YPab2cN5C4d0iKqZHq:QQgfX40/z/PQi4d0i

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/1940-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1660-13-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1784-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1660-87-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1660-200-0x0000000000400000-0x0000000000442000-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_6869ab9b7eed079e081d725895f529b2.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1660-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1940-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1660-13-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1784-84-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1784-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1660-87-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1660-200-0x0000000000400000-0x0000000000442000-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_6869ab9b7eed079e081d725895f529b2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1940	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	31
PID 1660 wrote to memory of 1940	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	31
PID 1660 wrote to memory of 1940	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	31
PID 1660 wrote to memory of 1940	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	31
PID 1660 wrote to memory of 1784	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	33
PID 1660 wrote to memory of 1784	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	33
PID 1660 wrote to memory of 1784	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	33
PID 1660 wrote to memory of 1784	1660	JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1940
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6869ab9b7eed079e081d725895f529b2.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1784

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\A549.B7A

Filesize
300B

MD5
06eebfa45a8f4394342a524ea40f227c

SHA1
fa0faecefc9db9b1b486aa7bce096825721cdecd

SHA256
01bb2e171647bcf3854d9472c381a4408863badde0083cf835ea792904da6948

SHA512
69da817449133f2dd0513f541285d63925fb6c23154666252552f86a0cd3150d17be2682e2a5b6ce68cb26d02b9001dc8a8af10a025b525e1a7ec229e5c55fa0

Download Submit
C:\Users\Admin\AppData\Roaming\A549.B7A

Filesize
1KB

MD5
4fbe5094814bbeb6798515475bf46217

SHA1
011791714e892db40f0a6396f71470b8d7c7b15a

SHA256
07efb4c2e6368e35c91e3117fcf60925f72d0c276bbf88f75a6faaedabcd0c49

SHA512
2c246d578ddafa2667d8a2f2a8d8a66a6e7fceaab4589d4aed50269b7fec746d2b09ce6cbd83e8bf9b9ba55ccf43768a9291fa989567d5f7bd27810790f638f3

Download Submit
C:\Users\Admin\AppData\Roaming\A549.B7A

Filesize
600B

MD5
0fc3311db0b96c44ec33b2ef37e40a26

SHA1
f38a6e7954ffeb09b0a6e1f2aee5da6fede346b8

SHA256
8921d3eb1047b2fa5ddd370dd5aebb0e2365f7c7d6101883e104e0d43c75911d

SHA512
c2ba7c4a03ba6f72e39cfb138c4feb52ba2ee00dcec3e02d78360e2580bb533b023c9e4a819b554769e5109268a6694a8acecd6adf60d22ddd3419a9fe105256

Download Submit
C:\Users\Admin\AppData\Roaming\A549.B7A

Filesize
996B

MD5
57c1a84069c98ae429ea0d21849ea834

SHA1
66e3c5f64d2648e67820f21fa2412ac5036ef3d9

SHA256
8c28ab0a7f6dcce5ce8c4a2e202b3ba7179eaf5cec0f7a08e92e010387e3a0d9

SHA512
e5aa6ab8a5f1babcdade2f9800c1b406ef7d6c91e2878affba5684b3be23a1879ccc2972d2713a53de06a152dcee347deef47947f3523003ee78c691a402e34f

Download Submit
memory/1660-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1660-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1660-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1660-87-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1660-200-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1784-84-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1784-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1940-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads