guloader | 64830c61b27603f7c196197e1fb0f51a31893dc9126903566b12b4943f794f39

General

Target
64830c61b27603f7c196197e1fb0f51a31893dc9126903566b12b4943f794f39.exe
Size 835KB
Sample261109-kgl8jaws3q
SHA256 64830c61b27603f7c196197e1fb0f51a31893dc9126903566b12b4943f794f39
MD5 2779fe506ef7f8bde50ca56949844eac
SHA1 88fb7af6574977d29a2074e2d5c815cc5045f9c1
SHA512 71592f05a87493e044396e33b1ff4736649997721e7591810df0d4dbf851555d4a7abe440d48e0823cc39f69a30af08a0dcf85e7ee8b10156f2903bbcf5b7899
SSDEEP 24576:pbELCxDZ4w8ykSlJRF84B9P/Gfzo+P0y/w441p+wOh:RELCxDZ4wHkSl/F84HPOU+8O41Pa
TLSH
T12605E1C6BB0096E1FC743B78A4BB46514B25FC3ADD630B476EC872122DB2D61502F9DA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

RemoteHost

C2

107.174.19.22:2404

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
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-S88LSJ
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
  64830c61b27603f7c196197e1fb0f51a31893dc9126903566b12b4943f794f39.exe
- Size 835KB
- SHA256 64830c61b27603f7c196197e1fb0f51a31893dc9126903566b12b4943f794f39
- MD5 2779fe506ef7f8bde50ca56949844eac
- SHA1 88fb7af6574977d29a2074e2d5c815cc5045f9c1
- SHA512 71592f05a87493e044396e33b1ff4736649997721e7591810df0d4dbf851555d4a7abe440d48e0823cc39f69a30af08a0dcf85e7ee8b10156f2903bbcf5b7899
- SSDEEP 24576:pbELCxDZ4w8ykSlJRF84B9P/Gfzo+P0y/w441p+wOh:RELCxDZ4wHkSl/F84HPOU+8O41Pa
- TLSH
  T12605E1C6BB0096E1FC743B78A4BB46514B25FC3ADD630B476EC872122DB2D61502F9DA
- MD5 SHA1 SHA512 SSDEEP TLSH
Score

10^/10

remotehost defense_evasion discovery downloader guloader remcos privilege_escalation 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
- Loads dropped DLL
- 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
  defense_evasion
- Suspicious use of NtSetInformationThreadHideFromDebugger
  defense_evasion
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