latentbot | b7ab8db0ee6b2779fec8e0d252300cccd077c4febb3d4f34ab75bfbb3e2a2e43

General

Target

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
Size

317KB
MD5

f4234fff593d802e5a2b3d6980bc076b
SHA1

fb1d5f050e612d8dc72c5ca9541364816f1d8dfe
SHA256

b7ab8db0ee6b2779fec8e0d252300cccd077c4febb3d4f34ab75bfbb3e2a2e43
SHA512

76203bc1a8bd78a9f212743e701e04991a949e8dd4ca93ec8136bef31cfeba1d50f77ab6f5fad69ba39ed57aa4c9b7e00eb7f7e8cfb6daebdbe28ae2564be5ab
SSDEEP

6144:eG377xS2Vp2CeiorXhwTBF53hVpcCJJvH73oSa:dr7xS2Vp6FwTjVbJJvHboSa

Score

10^/10

latentbot modiloader discovery evasion persistence trojan upx

Malware Config

Extracted

Family

latentbot

C2

dezeninha12.zapto.org

Signatures

LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3420-0-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/files/0x000400000001e4cd-5.dat	modiloader_stage2
behavioral2/memory/3420-11-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/3252-27-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2

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:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid	Process
3252	mstwain32.exe

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid	Process
3252	mstwain32.exe

Loads dropped DLL 4 IoCs

Processes:

mstwain32.exe

pid	Process
3252	mstwain32.exe
3252	mstwain32.exe
3252	mstwain32.exe
3252	mstwain32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exemstwain32.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/3420-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/files/0x000400000001e4cd-5.dat	upx
behavioral2/memory/3420-11-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3252-27-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

Processes:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exemstwain32.exe

description	ioc	Process
File created	C:\Windows\mstwain32.exe	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.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 2 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:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exemstwain32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exevssvc.exemstwain32.exe

description	pid	Process
Token: SeDebugPrivilege	3420	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
Token: SeBackupPrivilege	820	vssvc.exe
Token: SeRestorePrivilege	820	vssvc.exe
Token: SeAuditPrivilege	820	vssvc.exe
Token: SeDebugPrivilege	3252	mstwain32.exe
Token: SeDebugPrivilege	3252	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid	Process
3252	mstwain32.exe
3252	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3420 wrote to memory of 3252	3420	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe	85
PID 3420 wrote to memory of 3252	3420	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe	85
PID 3420 wrote to memory of 3252	3420	f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe	85

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\f4234fff593d802e5a2b3d6980bc076b_JaffaCakes118.exe"
  2⤵
  - UAC bypass
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:3252

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:820

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll

Filesize
33KB

MD5
20b1a402a127340154762aa32687f50c

SHA1
35f4b047e27b7041307f99f6f6f6b7d9304fcd83

SHA256
22bdbf89f56fc909a4c593ca1bbd719ab5144dab96bd93f8a961615f9f197f65

SHA512
5e52fc8d4ce2c97808c3c287da79b93d51e9095e9b6ea3590f8eabd0d827e151840f87cff5b2adf5cd7e1ce98ee2853260360d3d98fd416dd1fc6a02afa674e5

Download Submit
C:\Windows\mstwain32.exe

Filesize
317KB

MD5
f4234fff593d802e5a2b3d6980bc076b

SHA1
fb1d5f050e612d8dc72c5ca9541364816f1d8dfe

SHA256
b7ab8db0ee6b2779fec8e0d252300cccd077c4febb3d4f34ab75bfbb3e2a2e43

SHA512
76203bc1a8bd78a9f212743e701e04991a949e8dd4ca93ec8136bef31cfeba1d50f77ab6f5fad69ba39ed57aa4c9b7e00eb7f7e8cfb6daebdbe28ae2564be5ab

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/3252-19-0x0000000000940000-0x0000000000941000-memory.dmp

Filesize
4KB

Download
memory/3252-23-0x00000000030F0000-0x00000000030FE000-memory.dmp

Filesize
56KB

Download
memory/3252-26-0x0000000002FA0000-0x0000000002FA1000-memory.dmp

Filesize
4KB

Download
memory/3252-27-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3252-28-0x00000000020F0000-0x00000000020F8000-memory.dmp

Filesize
32KB

Download
memory/3252-29-0x00000000030F0000-0x00000000030FE000-memory.dmp

Filesize
56KB

Download
memory/3420-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3420-8-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/3420-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads