fatalrat | a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f

General

Target

a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe
Size

381KB
MD5

7184e797d51213a2fffdf444a6414c62
SHA1

852820704d15282094c7eba2eca06b08f3c79f00
SHA256

a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f
SHA512

34707979c87afd8269eab68c602cde0894eb22502bfcca869f4a27647af5c9f9afcf98b5cfc679e3a278cbb52b8eb88c78a09526d68204dd6517fbe1cb4c0004
SSDEEP

6144:dfHfaTjCTyXGouH3OYBUniLDGpcRbqipUdaXrMjOBvB37WNkGkYpFP41Ftcg74LE:ktan2wDGpcRbOda7MjW53CNTdpa1zUlv

Score

10^/10

fatalrat discovery infostealer rat

Malware Config

Signatures

FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
infostealer rat fatalrat

Fatal Rat payload 1 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral1/memory/1908-86-0x0000000000800000-0x000000000082A000-memory.dmp	fatalrat

Executes dropped EXE 1 IoCs

Processes:

UEUEXDf.exe

pid process

1908 UEUEXDf.exe
Loads dropped DLL 2 IoCs

Processes:

UEUEXDf.exe

pid process

1908 UEUEXDf.exe
1908 UEUEXDf.exe
Drops file in System32 directory 1 IoCs

Processes:

UEUEXDf.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\UEUEXDf.exe UEUEXDf.exe
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 1 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

Processes:

UEUEXDf.exe

description ioc process

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

pid	process
1908	UEUEXDf.exe

pid	process
1908	UEUEXDf.exe
1908	UEUEXDf.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\UEUEXDf.exe	UEUEXDf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UEUEXDf.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe

pid	process
2544	a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe
2544	a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

UEUEXDf.exe

description pid process

Token: SeDebugPrivilege 1908 UEUEXDf.exe

description	pid	process
Token: SeDebugPrivilege	1908	UEUEXDf.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.exe
PID 2028 wrote to memory of 1908	2028	taskeng.exe	UEUEXDf.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\a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe
"C:\Users\Admin\AppData\Local\Temp\a06ddac0b0d77df2030845fb76ee2929c37635ed9b5391bb68bf2d81a2b7875f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:2544

C:\Windows\system32\taskeng.exe
taskeng.exe {B44F2812-5C03-4818-A9F6-B268959F3511} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2028
- C:\ProgramData\XHXGXG\UEUEXDf.exe
  C:\ProgramData\XHXGXG\UEUEXDf.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\XHXGXG\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\ProgramData\XHXGXG\UEUEXDf.exe

Filesize
89KB

MD5
88848fa9ee78e13e547610b473f0c5b2

SHA1
6d7fc0447841698906f140463bad2ff3c68eab67

SHA256
9217361e34f164a810a105cdef2b38a27ddf1a0f722eca37cb28a0255df16915

SHA512
0ceaf6dc466ea6c83670ab64c2090f0a97477e3ae0670173e60bc8b87a0ad86e7fc7322c5581af7aa57547d4c6ce8e4614784a0e164ad047c998b395ee626255

Download Submit
C:\ProgramData\XHXGXG\longlq.cl

Filesize
1.2MB

MD5
1eaf8e0901eb3c862a865def25820db7

SHA1
98eb757704afc7be53d5dd9da9c802fc30650d54

SHA256
2f7b69ed3ae26ba8afb5d33f67a409232ce8d05c789e862dbbdd047e90b805ef

SHA512
e6eee6009ed1d3a92fa08fe1b791b499eeab2b36228d8f56174edaaf1c53596fc5644210dfc8aeac68333ed6db1d9792e410b2faad12d6958765bcf2ab740bf3

Download Submit
C:\Users\Admin\AppData\Roaming\SBRBU\H0G0.exe

Filesize
142KB

MD5
bbaea75e78b80434b7cd699749b93a97

SHA1
c7d151758cb88dee39dbb5f4cd30e7d226980dde

SHA256
c9a1c52f5f5c8deef76b8e989c6a377f00061fa369cbd1cee7f53f8f03295f5c

SHA512
7f41846d61452c73566554ba5f6ef356e757ff4c292ad68bbcc1b84f736c02c6b0bc52e13270e5d7be4cde743d40cfc281028d4a0e322fbeecd9b786d08bac3d

Download Submit
C:\Users\Admin\AppData\Roaming\SBRBU\Microsoft\Windows\Start Menu\Programs\startup\website_secure_lnk.lnk

Filesize
756B

MD5
dd5ed1000c07435d58ed2d19256ab9c2

SHA1
bb0b6d93996fd6d65c4a1a91282411f9dac3ced0

SHA256
4d1ef79ec6ed032f62218934f3110be349a2f33890bee68beefd5a8a0a8c68d5

SHA512
96cdc8d17359c9a60154238f98e235dad37087c4ae31340357f80532182edb764780cec0c8ea3a9e38930fbb9836aecf3880b7ef783e49856827b0ab3505168c

Download Submit
C:\Users\Public\GWGWG_

Filesize
1.1MB

MD5
4b48402ea22fbfe680447fdd71569268

SHA1
99b81431ebde6f1a83e9db77dd1b8b434f08a105

SHA256
36465168be445231526aeb8c8e7c1e1569d482f27f8c6e0c995e2ba827947989

SHA512
e932f002020156591f395c97501f1e577ae7fd2c79dd449d2866580cf7d6282289579b27b0e5bf9e29a00a8ae5cecad44f78e5d44aefbb2ec46dcc9c38402365

Download Submit
\ProgramData\XHXGXG\mfc100.dll

Filesize
1.2MB

MD5
1a283e4e67b0e6fa3c5b64b7a80aa187

SHA1
f990b4a83f187f6caaeaa1748506e19c9ff06242

SHA256
db8c3b2621d1048d93b609c0310f43d26d537124d4b6fe4f8843339b05430322

SHA512
f0254eafaedda66cf17be66433bd86bba6d4e8cff784bda439dd086d11f3f4de4cd6ac2436523020b027021c1ff67276c5d3db5bda6899715cb087cdb83891df

Download Submit
memory/1908-79-0x0000000000B60000-0x0000000000B91000-memory.dmp

Filesize
196KB

Download
memory/1908-84-0x00000000007D0000-0x00000000007F7000-memory.dmp

Filesize
156KB

Download
memory/1908-83-0x0000000000370000-0x00000000003A2000-memory.dmp

Filesize
200KB

Download
memory/1908-85-0x0000000000BA0000-0x0000000000BCD000-memory.dmp

Filesize
180KB

Download
memory/1908-86-0x0000000000800000-0x000000000082A000-memory.dmp

Filesize
168KB

Download
memory/1908-95-0x0000000000BA0000-0x0000000000BCD000-memory.dmp

Filesize
180KB

Download
memory/1908-96-0x0000000000BA0000-0x0000000000BCD000-memory.dmp

Filesize
180KB

Download
memory/2544-70-0x00000000001F0000-0x0000000000240000-memory.dmp

Filesize
320KB

Download
memory/2544-33-0x00000000001F0000-0x0000000000240000-memory.dmp

Filesize
320KB

Download
memory/2544-1-0x0000000180000000-0x00000001802CC000-memory.dmp

Filesize
2.8MB

Download
memory/2544-4-0x0000000003950000-0x0000000003C11000-memory.dmp

Filesize
2.8MB

Download
memory/2544-0-0x00000000001F0000-0x0000000000240000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads