cycbot | 4e62c11c9b8197de0d44869bb9710576341fe37301e931c4b8da665961652c4f

General

Target

JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Size

166KB
MD5

1c8f3ac2263bb7f996ee7685ed3d84e4
SHA1

bbe0e7a306b021674dde855ae3abb18ecf7c421d
SHA256

4e62c11c9b8197de0d44869bb9710576341fe37301e931c4b8da665961652c4f
SHA512

97c4d4876b068c404ef0b8f4bc1d55fe3523f25805c16fb075bd42faa834a85cc867a033d0dd6cd6bdc0ea742ed38c7b1ec6d88a32279d11747cf471e3f2ba0f
SSDEEP

3072:vufEwW90LLrjzeNaDaW1S2XyabQNPxPHtHTk8cRB:2sF0eJW1rNbuFA8oB

Score

10^/10

cycbot backdoor discovery persistence 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/4200-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/548-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/548-66-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4844-69-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/548-173-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

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_1c8f3ac2263bb7f996ee7685ed3d84e4.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/548-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4200-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4200-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/548-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/548-66-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4844-69-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/548-173-0x0000000000400000-0x0000000000445000-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_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 4200	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	84
PID 548 wrote to memory of 4200	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	84
PID 548 wrote to memory of 4200	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	84
PID 548 wrote to memory of 4844	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	86
PID 548 wrote to memory of 4844	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	86
PID 548 wrote to memory of 4844	548	JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4200
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c8f3ac2263bb7f996ee7685ed3d84e4.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4844

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\E19E.E7A

Filesize
1KB

MD5
a2eb43a494f4b0136bdcf1948b05ca39

SHA1
170f7395a92b032526e482c0cd28b022c8b5f39f

SHA256
d58451449cb411a057b7ed3fa6484d1d01e2a8dff77b634b981cd477f07778bf

SHA512
6d26bd4547714738082d64a7a555fd0f01ba27e21ecff7074b8f1dd226dff603e10acff364cec74c7bbf0089c0a659fa63035081ac60d297ee0f4d00b9168a17

Download Submit
C:\Users\Admin\AppData\Roaming\E19E.E7A

Filesize
600B

MD5
0bdfa128762e58a4de3a6db642a56849

SHA1
ac57285cfa1456f9258081e68cdc0b7572031958

SHA256
76be5c72c3c112d7db244560577832a2548d80748605dac001c2d0197e19b22b

SHA512
329d19b410cc2b26644471c90fca2dfff155b28aec8705d6c9e6b7ec844cccee840d02a1395622462e96b6b75a18e708fc62529321f4f893e1726af3c94e5af8

Download Submit
C:\Users\Admin\AppData\Roaming\E19E.E7A

Filesize
996B

MD5
4db5f971295c69ad9621b71595785e43

SHA1
dd4bfd98d465b6fd5286bf0f99aa720e9e6d6cb2

SHA256
a5001cd97297cd4f603263182ac4a4813aefcbec52d682f6a1902680fb548cad

SHA512
e6674c48b7d8e373df353c7bf069539e882f1e3b4bf46c70e0be35e5ebd6813c0a9bd6593f943b162cf9585384baf9e84a6029817d2a93c499b1df957ea7d2bf

Download Submit
memory/548-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/548-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/548-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/548-66-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/548-173-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4200-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4200-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4844-68-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4844-69-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads