remcos | a1f0f4676e135cc88ab8b6a25c70530fa193b1718bd2ba7b6ac1c997c241f6c8

General

Target

17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe
Size

483KB
MD5

c16b61d355597e973962354a54d9105a
SHA1

418f9f2d76cc53b40f6f7321f93bff947af7a699
SHA256

a1f0f4676e135cc88ab8b6a25c70530fa193b1718bd2ba7b6ac1c997c241f6c8
SHA512

9e4ede43e4cce4a0312cb52a795bf04bf75b7f5c8dfd837f47d86968db11febc92434d1aa71d88e785d3e99e12a99d997ce0edc9061fe2b380f82d03f7c7071e
SSDEEP

6144:aXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZDAXYcNH5Gv:aX7tPMK8ctGe4Dzl4h2QnuPs/ZDicv

Score

10^/10

remcos remotehost collection rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

jansuri.kozow.com:7232

Attributes

audio_folder
MicRecords
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-3XBWOL
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/2244-24-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2244-29-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/876-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/876-25-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/876-41-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2244-24-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3284-27-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/876-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3284-28-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2244-29-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/876-25-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3284-30-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/876-41-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exeiexplore.exe

description	pid	process	target process
PID 3768 set thread context of 1096	3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe	iexplore.exe
PID 1096 set thread context of 876	1096	iexplore.exe	iexplore.exe
PID 1096 set thread context of 2244	1096	iexplore.exe	iexplore.exe
PID 1096 set thread context of 3284	1096	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

iexplore.exeiexplore.exe

pid process

876 iexplore.exe
876 iexplore.exe
3284 iexplore.exe
3284 iexplore.exe
876 iexplore.exe
876 iexplore.exe

pid	process
876	iexplore.exe
876	iexplore.exe
3284	iexplore.exe
3284	iexplore.exe
876	iexplore.exe
876	iexplore.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exeiexplore.exe

pid	process
3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe
1096	iexplore.exe
1096	iexplore.exe
1096	iexplore.exe
1096	iexplore.exe
1096	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

iexplore.exe

description pid process

Token: SeDebugPrivilege 3284 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	3284	iexplore.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exeiexplore.exe

description	pid	process	target process
PID 3768 wrote to memory of 1096	3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe	iexplore.exe
PID 3768 wrote to memory of 1096	3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe	iexplore.exe
PID 3768 wrote to memory of 1096	3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe	iexplore.exe
PID 3768 wrote to memory of 1096	3768	17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe	iexplore.exe
PID 1096 wrote to memory of 1384	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 1384	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 1384	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 876	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 876	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 876	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 876	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 4488	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 4488	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 4488	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 2244	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 2244	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 2244	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 2244	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 3284	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 3284	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 3284	1096	iexplore.exe	iexplore.exe
PID 1096 wrote to memory of 3284	1096	iexplore.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe
"C:\Users\Admin\AppData\Local\Temp\17122153850e49c0cfb850fba174cf16707d6542d13cef87fc72c790ae00b3df54faaaaed9126.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3768

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1096

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ryyenaqldsmn"
3⤵
PID:1384

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ryyenaqldsmn"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:876

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uadxosafraeaytc"
3⤵
PID:4488

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uadxosafraeaytc"
3⤵
- Accesses Microsoft Outlook accounts
PID:2244

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\euihollgniwfjzzynzz"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3284

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:2564

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\ryyenaqldsmn
Filesize
4KB

MD5
10fa8ec140c204486092fb161e567ec7

SHA1
4d63e1f8df3afefedb19df73d7ee5f3b1e7b6473

SHA256
7176ca3d0196ec46f178107fdb587adaef3f6ea65daa80eccd2371a515880e04

SHA512
9db4eeb3f07d8d0579f75f3426c91156809152d8c1a37c9a27bf159888f6dd97f1212ac80f5bbb17e4d86f3087c512ccba2ca50a2db07d071370bd36364e1f76

Download Submit
memory/876-14-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/876-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/876-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/876-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/876-21-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1096-50-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-4-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-8-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-9-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-10-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-12-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-13-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-6-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-61-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-60-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-7-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-5-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-59-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-58-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-57-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-53-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1096-56-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-55-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-3-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-54-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-2-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-1-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-43-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1096-46-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1096-47-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1096-48-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1096-49-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-0-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-51-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/1096-52-0x0000000000760000-0x00000000007E2000-memory.dmp

Filesize
520KB

Download
memory/2244-20-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2244-29-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2244-24-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2244-16-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3284-30-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3284-28-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3284-27-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3284-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3284-17-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads