guloader | 5e8e303f85b17263f85044d1e8dd593477755c753d13664bac9ba8f53241ec26

General

Target
5e8e303f85b17263f85044d1e8dd593477755c753d13664bac9ba8f53241ec26.exe
Size 1.2MB
Sample260824-2t9m2avckf
SHA256 5e8e303f85b17263f85044d1e8dd593477755c753d13664bac9ba8f53241ec26
MD5 16c21aebc8636ddc78e537c58d183c8f
SHA1 6d73993725af703f9725c20e3a8f313bbb1a464f
SHA512 b2c6c9dcf2e4f4da225168de12f83335f05db2320c5457ff987068313088ea38de27a3ef43a6631222983348222e37945afb18654103d821efe134f1b54ec0ef
SSDEEP 24576:MYXDDHkQGt0xUh2xx5h2nwOhUXKkp1jCLbiBBnLQvHF1bnHmvIxG/Cq7huPY:lX8dtn8xPUnwOhGXjFh8l4vI0CbA
TLSH
T191452314B143E067C4E7513F68FF54AD92EBBE297C526A0F2314BB0E1CB526C538B64A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

Malware Config

Extracted

Family

remcos

Version

7.2.1 Pro

Botnet

RemoteHost

C2

104.168.5.25:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-34N137
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Targets

- Target
  5e8e303f85b17263f85044d1e8dd593477755c753d13664bac9ba8f53241ec26.exe
- Size 1.2MB
- SHA256 5e8e303f85b17263f85044d1e8dd593477755c753d13664bac9ba8f53241ec26
- MD5 16c21aebc8636ddc78e537c58d183c8f
- SHA1 6d73993725af703f9725c20e3a8f313bbb1a464f
- SHA512 b2c6c9dcf2e4f4da225168de12f83335f05db2320c5457ff987068313088ea38de27a3ef43a6631222983348222e37945afb18654103d821efe134f1b54ec0ef
- SSDEEP 24576:MYXDDHkQGt0xUh2xx5h2nwOhUXKkp1jCLbiBBnLQvHF1bnHmvIxG/Cq7huPY:lX8dtn8xPUnwOhGXjFh8l4vI0CbA
- TLSH
  T191452314B143E067C4E7513F68FF54AD92EBBE297C526A0F2314BB0E1CB526C538B64A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

10^/10

remotehost discovery downloader guloader remcos persistence rat
- Family: Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Family: Remcos
  Remcos is a closed-source remote control and surveillance software.
  rat remcos
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Contacts third-party web service commonly abused for C2
  Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2
- Target
  $PLUGINSDIR/System.dll
- Size 12KB
- SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
- MD5 cff85c549d536f651d4fb8387f1976f2
- SHA1 d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
- SHA512 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88
- SSDEEP 192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr
- TLSH
  T126426B129BB089F2F591583814667F2A6FBE9C5D27F50563CFE304D63D212CB983A283
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

3^/10

discovery
behavioral3 behavioral4
- Target
  $PLUGINSDIR/nsDialogs.dll
- Size 9KB
- SHA256 56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2
- MD5 6c3f8c94d0727894d706940a8a980543
- SHA1 0d1bcad901be377f38d579aafc0c41c0ef8dcefd
- SHA512 2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355
- SSDEEP 96:o0svUu3Uy+sytcS8176b+XR8pCHFcMcxSgB5PKtAtgt+Nt+rnt3DVEB3YcNqkzfS:o0svWyNO81b8pCHFcM0PuAgkOyuIFc
- TLSH
  T17012F992E6A450B3C5D6533B35AA2F2DCBBD5325B0926C00C7738E4D39395B66E38353
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

3^/10

discovery
behavioral5 behavioral6