revengerat | c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5

General

Target

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
Size

397KB
MD5

17d0b9ac75dfd038ac11c64940a5a6cb
SHA1

fdf4a6d488ba2220c808a8e233ea0e219273c3b2
SHA256

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5
SHA512

0ffb63b421da1daa0ca2098ea35b6e5be5b8613b9b4855b723b2c6032bcf644f7d00ddb35ab1af443c5f765fa10c61cb5c28fe81734ea4e582b51ed56c1afecd
SSDEEP

6144:/IWyveo8OzcrumMozCE6+bIPEMMjAtUO3nDv4abP212gG7EXoiToLa:/IpvZDoruYeE6+EsPjA4a7mJWEZga

Score

10^/10

revengerat nyancatrevenge persistence trojan

Malware Config

Extracted

Family

revengerat

Botnet

NyanCatRevenge

C2

alice2019.myftp.biz:7777

Mutex

a915f6c5466a49

Signatures

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2300-5-0x0000027BFD660000-0x0000027BFD6C0000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2408 svchost.exe

pid	process
2408	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 2408 set thread context of 3260 2408 svchost.exe regasm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2408 set thread context of 3260	2408	svchost.exe	regasm.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

regasm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	regasm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	regasm.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

3356 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1972 timeout.exe

pid	process
3356	schtasks.exe

pid	process
1972	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exesvchost.exe

pid	process
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
2408	svchost.exe
2408	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
Token: SeDebugPrivilege	2408	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 2300 wrote to memory of 4076	2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe	cmd.exe
PID 2300 wrote to memory of 4076	2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe	cmd.exe
PID 2300 wrote to memory of 4748	2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe	cmd.exe
PID 2300 wrote to memory of 4748	2300	c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe	cmd.exe
PID 4748 wrote to memory of 1972	4748	cmd.exe	timeout.exe
PID 4748 wrote to memory of 1972	4748	cmd.exe	timeout.exe
PID 4076 wrote to memory of 3356	4076	cmd.exe	schtasks.exe
PID 4076 wrote to memory of 3356	4076	cmd.exe	schtasks.exe
PID 4748 wrote to memory of 2408	4748	cmd.exe	svchost.exe
PID 4748 wrote to memory of 2408	4748	cmd.exe	svchost.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe
PID 2408 wrote to memory of 3260	2408	svchost.exe	regasm.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe
"C:\Users\Admin\AppData\Local\Temp\c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4076

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:3356

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6DD8.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:4748

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1972

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
4⤵
- Checks processor information in registry
PID:3260

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6DD8.tmp.bat
Filesize
151B

MD5
1d31d563d9f94ed00d7589e000b589f5

SHA1
e11c296f9b91e2b87d12e90920bf66465c6d0dcc

SHA256
a05345af3bbd48da4b83f31d127e378ca2b424c7ba97c1d8b22809f7215c5081

SHA512
437a7fd654114c7712f7d5f5618c828b1c8ebc730080eb100405b5b1a25512bcccc6ce5fab2b93baf30b6875d9d65c19fdf06f9525996ece33b826ecc70c83a3

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
397KB

MD5
17d0b9ac75dfd038ac11c64940a5a6cb

SHA1
fdf4a6d488ba2220c808a8e233ea0e219273c3b2

SHA256
c994b9d016129f8a1e36b1e1f3288ef1385c6453497fc50cf129195e9769b8a5

SHA512
0ffb63b421da1daa0ca2098ea35b6e5be5b8613b9b4855b723b2c6032bcf644f7d00ddb35ab1af443c5f765fa10c61cb5c28fe81734ea4e582b51ed56c1afecd

Download Submit
memory/2300-1-0x0000027BFDDC0000-0x0000027BFDE36000-memory.dmp

Filesize
472KB

Download
memory/2300-3-0x0000027BFDF50000-0x0000027BFDF60000-memory.dmp

Filesize
64KB

Download
memory/2300-2-0x00007FF9DD320000-0x00007FF9DDDE1000-memory.dmp

Filesize
10.8MB

Download
memory/2300-4-0x0000027BFD500000-0x0000027BFD51E000-memory.dmp

Filesize
120KB

Download
memory/2300-5-0x0000027BFD660000-0x0000027BFD6C0000-memory.dmp

Filesize
384KB

Download
memory/2300-10-0x00007FF9DD320000-0x00007FF9DDDE1000-memory.dmp

Filesize
10.8MB

Download
memory/2300-0-0x0000027BFB970000-0x0000027BFB97C000-memory.dmp

Filesize
48KB

Download
memory/2408-19-0x00007FF9DD270000-0x00007FF9DDD31000-memory.dmp

Filesize
10.8MB

Download
memory/2408-15-0x00007FF9DD270000-0x00007FF9DDD31000-memory.dmp

Filesize
10.8MB

Download
memory/3260-16-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3260-18-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/3260-17-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3260-20-0x00000000058D0000-0x00000000058E0000-memory.dmp

Filesize
64KB

Download
memory/3260-21-0x0000000005C80000-0x0000000005D1C000-memory.dmp

Filesize
624KB

Download
memory/3260-22-0x0000000006300000-0x0000000006366000-memory.dmp

Filesize
408KB

Download
memory/3260-23-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3260-24-0x00000000058D0000-0x00000000058E0000-memory.dmp

Filesize
64KB

Download
memory/3260-25-0x00000000013E0000-0x00000000013F6000-memory.dmp

Filesize
88KB

Download
memory/3260-26-0x00000000067A0000-0x0000000006832000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads