remcos | cc17e0a75ce1d2770db5ab70177b9ffa3665d7c46290a9c61deef05e41fb48f2

General

Target

e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
Size

234KB
MD5

e2ccfaf4d44c36b5654174b3f341a2f9
SHA1

163ad4b931cf150d72b4408322f710d59fff96de
SHA256

cc17e0a75ce1d2770db5ab70177b9ffa3665d7c46290a9c61deef05e41fb48f2
SHA512

8b291eea1e2458ac3c6c5a97ceeb7184a672496da75f758249e6ac7f0533612610f286bfd203ea667017b880ca79fa58c392b4e62bed8ada4c0b14831c392fe9
SSDEEP

3072:SBkfJpRXATwMdFCcv6k3bpcmH0IvkHEq8bvgjSZiU/2MeQMMoc4EDJgTR7T9AD1s:SqjIprpvLoa532Goc42JERY1U8acYt

Score

10^/10

remcos grace and mercy logs discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

grace and mercy logs

C2

103.153.77.83:4348

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Execel.exe
copy_folder
Execel
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
Execel
keylog_path
%AppData%
mouse_option
false
mutex
Execel-X7W93K
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Execel
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

Loads dropped DLL 2 IoCs

pid	Process
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30

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 2 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	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2788	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30
PID 2656 wrote to memory of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30
PID 2656 wrote to memory of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30
PID 2656 wrote to memory of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30
PID 2656 wrote to memory of 2788	2656	e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e2ccfaf4d44c36b5654174b3f341a2f9_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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\Execel\logs.dat

Filesize
74B

MD5
99727fdaba9c4fd1db81d85eeb4c442d

SHA1
887bf26a9a5b17f92505139796c9648043def6d2

SHA256
a7312f8ea3b43f7ccc2502779a25ec4a10636dbafb921c310e8930520e7ddd40

SHA512
794d7560d3c288d835defe9fc2986476f7f00d5e51a56c4e3ae831cbbaa46cdda70f4f08ce2d7f3593741362f9cdc1ca29f07b94222f8c191a5d2936a63126aa

Download Submit
\Users\Admin\AppData\Local\Temp\hjfeu2x8wxnb82.dll

Filesize
16KB

MD5
c5aeacd25be37723c7ffaab31ad6d639

SHA1
f5364bdbb0b85f15b61db6ddfea44d904481df46

SHA256
5b46289cb721008f2125b81abbe28be5ce09c9aafdbb19139b6f77ce921c0bc8

SHA512
3dc1b6d8b86674297d872efbbd9c3295a39d8ec9bf082982aea94de658d917e4b63ad762b8e1a738d29d06875625363fa02329a3cb5d48d9f40ba100145b98fe

Download Submit
\Users\Admin\AppData\Local\Temp\nso57E1.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/2656-15-0x0000000074BB0000-0x0000000074BB9000-memory.dmp

Filesize
36KB

Download
memory/2656-12-0x0000000074BB0000-0x0000000074BB9000-memory.dmp

Filesize
36KB

Download
memory/2788-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-46-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2788-50-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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