86e32debc724ab505081f11fd3fc8088cdf26654411053deb76a4aec3d7e665a

General

Target

f11c7bce06ba3ffcb49c370e81607da0N.exe
Size

538KB
MD5

f11c7bce06ba3ffcb49c370e81607da0
SHA1

43c21f0230ed183d9da37d68411dff6002bc8907
SHA256

86e32debc724ab505081f11fd3fc8088cdf26654411053deb76a4aec3d7e665a
SHA512

e59b0ba543ca9fa6b457f578481072745a4571f2cd3f351226ecaa513b6260e189cc5af9811d6f0c7373e3c9902b3ef632d8b6c9cae18663932697f4ec20f453
SSDEEP

12288:/n8yN0Mr8ZJJw1jm0Uq+pnWHDiZPWho5hWcrIm+xM/EWGKWYuaP:vPuZJK1Kbgq+h2rdjWYb

Score

7^/10

discovery persistence spyware stealer

Malware Config

Signatures

Checks computer location settings 2 TTPs 6 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	Isass.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	Isass.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	Isass.exe

Executes dropped EXE 5 IoCs

pid	Process
708	Isass.exe
5080	Isass.exe
244	Isass.exe
2224	Isass.exe
3228	f11c7bce06ba3ffcb49c370e81607da0N.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	f11c7bce06ba3ffcb49c370e81607da0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	f11c7bce06ba3ffcb49c370e81607da0N.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 8 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f11c7bce06ba3ffcb49c370e81607da0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
4428	f11c7bce06ba3ffcb49c370e81607da0N.exe
4428	f11c7bce06ba3ffcb49c370e81607da0N.exe
708	Isass.exe
708	Isass.exe
5080	Isass.exe
5080	Isass.exe
5080	Isass.exe
5080	Isass.exe
5080	Isass.exe
5080	Isass.exe
2212	f11c7bce06ba3ffcb49c370e81607da0N.exe
2212	f11c7bce06ba3ffcb49c370e81607da0N.exe
244	Isass.exe
244	Isass.exe
244	Isass.exe
244	Isass.exe
244	Isass.exe
244	Isass.exe
1368	f11c7bce06ba3ffcb49c370e81607da0N.exe
1368	f11c7bce06ba3ffcb49c370e81607da0N.exe
2224	Isass.exe
2224	Isass.exe
2224	Isass.exe
2224	Isass.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 708	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	84
PID 4428 wrote to memory of 708	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	84
PID 4428 wrote to memory of 708	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	84
PID 4428 wrote to memory of 5080	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	85
PID 4428 wrote to memory of 5080	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	85
PID 4428 wrote to memory of 5080	4428	f11c7bce06ba3ffcb49c370e81607da0N.exe	85
PID 5080 wrote to memory of 2212	5080	Isass.exe	87
PID 5080 wrote to memory of 2212	5080	Isass.exe	87
PID 5080 wrote to memory of 2212	5080	Isass.exe	87
PID 2212 wrote to memory of 244	2212	f11c7bce06ba3ffcb49c370e81607da0N.exe	88
PID 2212 wrote to memory of 244	2212	f11c7bce06ba3ffcb49c370e81607da0N.exe	88
PID 2212 wrote to memory of 244	2212	f11c7bce06ba3ffcb49c370e81607da0N.exe	88
PID 244 wrote to memory of 1368	244	Isass.exe	89
PID 244 wrote to memory of 1368	244	Isass.exe	89
PID 244 wrote to memory of 1368	244	Isass.exe	89
PID 1368 wrote to memory of 2224	1368	f11c7bce06ba3ffcb49c370e81607da0N.exe	90
PID 1368 wrote to memory of 2224	1368	f11c7bce06ba3ffcb49c370e81607da0N.exe	90
PID 1368 wrote to memory of 2224	1368	f11c7bce06ba3ffcb49c370e81607da0N.exe	90
PID 2224 wrote to memory of 3228	2224	Isass.exe	92
PID 2224 wrote to memory of 3228	2224	Isass.exe	92
PID 2224 wrote to memory of 3228	2224	Isass.exe	92

C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
"C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:708
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
    "C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2212
  - - C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:244
    - - C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
        5⤵
        Checks computer location settings
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1368
      - C:\Users\Public\Microsoft Build\Isass.exe
        
        "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
        6⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:2224
        
        C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe"
        7⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe

Filesize
679KB

MD5
abe14d1bf5f0ebc716a7aade4efe24e9

SHA1
b930a32e3b0ef87e73dcf8f21457c2d201ad3100

SHA256
6f9e3b08ed77d07ccec21ff45b4cbc66a2bf6e41a2dbf5ba6d98486d0be6764e

SHA512
ae0e612e7349de7c818902f4811f7e5258a5d7dd8f324fe1209d6b18b829090d0e179fa3161fbcfe16a740e9919f51a7aaf712bf698d57af8fdbb136097383ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\f11c7bce06ba3ffcb49c370e81607da0N.exe

Filesize
284KB

MD5
a42b35f975d88c1370a7aff084ee57a7

SHA1
bee1408fe0b15f6f719f003e46aee5ec424cf608

SHA256
56cc9e7e3767c0cffae8161bf0ad13457487c1b422e2879b897dbd4bab115776

SHA512
b92d05515e18277db660118934e70678ee2a3bb66005bad19bb417ffaedb22a63727a5a697ca3ac0f6c48f6f5593ba45ab80f4ebdc0eaed10d80b7af04d45b23

Download Submit
C:\Users\Public\Microsoft Build\Isass.exe

Filesize
216KB

MD5
0609171772ed1682bd6adb41673f32b2

SHA1
75456deb7fe05cc2a5806623b6b216bc4fc47243

SHA256
de84bb36c0b33b5ddc3f6d54c8b087649b51e8cf8a80bace4fd92258d46443e3

SHA512
693c912a8253c62a446f072035f9775dfce0c45b0160710ee4bf8a0c296af0f9fcda24b22bc24050d837338b22371bc6eecd6f3e8ed7e0bde8b13b56e83ce778

Download Submit
memory/244-16-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/244-18-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-57-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-47-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-67-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-66-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-58-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-7-0x00000000019F0000-0x00000000019F1000-memory.dmp

Filesize
4KB

Download
memory/708-32-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-51-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-6-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-42-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-41-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-36-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-37-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/708-33-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/1368-20-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2212-15-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2224-31-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/4428-1-0x0000000003D30000-0x0000000003D31000-memory.dmp

Filesize
4KB

Download
memory/4428-11-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/4428-0-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/5080-10-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/5080-13-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads