remcos | abb4163c6b54005775d4b62e00a5a8fd403c4fa474380935ac4d311058341e51

General

Target

dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe
Size

601KB
MD5

dc07a7a57b744cc5c8660a4fca22dce9
SHA1

5800ef9c071ddda7bc31bb010eef63bceb54226f
SHA256

abb4163c6b54005775d4b62e00a5a8fd403c4fa474380935ac4d311058341e51
SHA512

eafece37655092cdaf8bc522bcc909503f102738cefb500ffa8493fc9639800a6ee0999968fb8c6984d5d658911d3314c057b541187fb3e64c5f186eba332ded
SSDEEP

12288:kXBqkXk44Tshr5zFx5EE+oApCJWX0lSx3vT:aBj4EdFxSXp8WX0gxb

Score

10^/10

remcos jan-bless discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

JAN-BLESS

C2

shahzad73.casacam.net:2404

shahzad73.ddns.net:2404

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-B2YKTJ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3116 set thread context of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1620	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 2640	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	93
PID 3116 wrote to memory of 2640	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	93
PID 3116 wrote to memory of 2640	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	93
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95
PID 3116 wrote to memory of 1620	3116	dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\thqSmcHi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFEB3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2640
- C:\Users\Admin\AppData\Local\Temp\dc07a7a57b744cc5c8660a4fca22dce9_JaffaCakes118.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFEB3.tmp

Filesize
1KB

MD5
970eaf87ac9edb4d03d495f4ae919977

SHA1
39a386f3f9fe498b0ff42deb2b39ab63bcfe9f80

SHA256
45d2773220fcc32f71fc36b710acf3f317e6a634aa19faa05ee380d4872329bf

SHA512
1de6c6d107cb5dc0b00a4f87ef76048bdf6d648981b3b046b68aa0fa27a5342696caba16f93925ef2de145fd69badcab11af836e2f36d92e15bb0fd0ff65b3df

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
32c860e492e4dbbf1341e08b70ab3fef

SHA1
63c06fcbffdbd1243aa5cbbe3297520d8419aef9

SHA256
c34c81c0ec34f649e848284157045789e7041d62f47086d26b95c45673102d36

SHA512
e9310e519ced03f9618462de5f03d930ddccb14cb4af7f48a64d51078a04b236a45018e7a107f7d13874047245aae82b169805cf5ffdcf6451928cdd904ae68b

Download Submit
memory/1620-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1620-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1620-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1620-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1620-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1620-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3116-5-0x0000000005800000-0x000000000580A000-memory.dmp

Filesize
40KB

Download
memory/3116-9-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/3116-10-0x0000000006A60000-0x0000000006AAC000-memory.dmp

Filesize
304KB

Download
memory/3116-8-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/3116-7-0x000000000C1E0000-0x000000000C1F2000-memory.dmp

Filesize
72KB

Download
memory/3116-6-0x000000000C280000-0x000000000C31C000-memory.dmp

Filesize
624KB

Download
memory/3116-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/3116-4-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/3116-3-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/3116-23-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/3116-2-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/3116-1-0x0000000000DB0000-0x0000000000E4C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads