formbook | b85c8547897495eea72da004d6579754bfa857b4cfb90b8405309e65bfeed216

General

Target

3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe
Size

1.1MB
MD5

71415d61dd3a653e017514280a4e05c4
SHA1

89bed5f613401c5816f3b22816f84d5f8067db3b
SHA256

3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5
SHA512

971407b4327c3a9fe1ff76f0ec84874522865ae08f338ec0985a1ef78066a59412d323a4a2731d33dec129c89355b7aa95fe36f4425db8ad6ea1151f5b9c2098
SSDEEP

24576:UAOcZXcxP61ptWw+avL8pnp3qY7daGAuvZG31RMaas/xmR:CH+tWw+S8D3r70QA3XM9n

Score

10^/10

formbook je14 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

je14

Decoy

innervisionbuildings.com

theenergysocialite.com

565548.com

panghr.com

onlyonesolutions.com

stjohnzone6.com

cnotes.rest

helfeb.online

xixi-s-inc.club

easilyentered.com

theshopx.store

mrclean-ac.com

miamibeachwateradventures.com

jpearce.co.uk

seseragi-bunkou.com

minimaddie.com

commbank-help-849c3.com

segohandelsonderneming.com

namthanhreal.com

fototerapi.online

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3428-141-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/3428-142-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3428-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1604-150-0x0000000000F50000-0x0000000000F7F000-memory.dmp	formbook
behavioral2/memory/1604-153-0x0000000000F50000-0x0000000000F7F000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

Processes:

estrlf.pif

pid process

1216 estrlf.pif

pid	process
1216	estrlf.pif

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:

3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

estrlf.pifRegSvcs.exesystray.exe

description	pid	process	target process
PID 1216 set thread context of 3428	1216	estrlf.pif	RegSvcs.exe
PID 3428 set thread context of 2596	3428	RegSvcs.exe	Explorer.EXE
PID 1604 set thread context of 2596	1604	systray.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

RegSvcs.exesystray.exe

pid	process
3428	RegSvcs.exe
3428	RegSvcs.exe
3428	RegSvcs.exe
3428	RegSvcs.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe
1604	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2596 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exesystray.exe

pid process

3428 RegSvcs.exe
3428 RegSvcs.exe
3428 RegSvcs.exe
1604 systray.exe
1604 systray.exe

pid	process
2596	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

RegSvcs.exeExplorer.EXEsystray.exe

description	pid	process
Token: SeDebugPrivilege	3428	RegSvcs.exe
Token: SeShutdownPrivilege	2596	Explorer.EXE
Token: SeCreatePagefilePrivilege	2596	Explorer.EXE
Token: SeShutdownPrivilege	2596	Explorer.EXE
Token: SeCreatePagefilePrivilege	2596	Explorer.EXE
Token: SeDebugPrivilege	1604	systray.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exeestrlf.pifExplorer.EXEsystray.exe

description	pid	process	target process
PID 4936 wrote to memory of 1216	4936	3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe	estrlf.pif
PID 4936 wrote to memory of 1216	4936	3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe	estrlf.pif
PID 4936 wrote to memory of 1216	4936	3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe	estrlf.pif
PID 1216 wrote to memory of 3840	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3840	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3840	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 1216 wrote to memory of 3428	1216	estrlf.pif	RegSvcs.exe
PID 2596 wrote to memory of 1604	2596	Explorer.EXE	systray.exe
PID 2596 wrote to memory of 1604	2596	Explorer.EXE	systray.exe
PID 2596 wrote to memory of 1604	2596	Explorer.EXE	systray.exe
PID 1604 wrote to memory of 1600	1604	systray.exe	cmd.exe
PID 1604 wrote to memory of 1600	1604	systray.exe	cmd.exe
PID 1604 wrote to memory of 1600	1604	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2596

C:\Users\Admin\AppData\Local\Temp\3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe
"C:\Users\Admin\AppData\Local\Temp\3ab1cc60bd5dca00fc6cad5cf3c0a7cccea610b20027c9db6b45f0b41860fba5.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936

C:\Users\Admin\AppData\Roaming\5_29\estrlf.pif
"C:\Users\Admin\AppData\Roaming\5_29\estrlf.pif" tvsgb.tls
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
PID:3840

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3428

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1604

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\5_29\estrlf.pif
Filesize
794KB

MD5
18e404787e9c044105f5c4bec4600bd8

SHA1
9f1015bd7f33a6f3c1cc12c0971f51b1adee1939

SHA256
e15984dc8ea9627d370c40178676490129427e2dc23499f68c9c65c4386fea12

SHA512
c6a1faae524968351b4841665bfe1c5255f7e6c115b7a81a4b6c65626f23f7f15e4bb856914fce15225c33a2e2b6166b3f1f87698895fe0ce4cb084b630c2a5f

Download Submit
C:\Users\Admin\AppData\Roaming\5_29\estrlf.pif
Filesize
794KB

MD5
18e404787e9c044105f5c4bec4600bd8

SHA1
9f1015bd7f33a6f3c1cc12c0971f51b1adee1939

SHA256
e15984dc8ea9627d370c40178676490129427e2dc23499f68c9c65c4386fea12

SHA512
c6a1faae524968351b4841665bfe1c5255f7e6c115b7a81a4b6c65626f23f7f15e4bb856914fce15225c33a2e2b6166b3f1f87698895fe0ce4cb084b630c2a5f

Download Submit
C:\Users\Admin\AppData\Roaming\5_29\gdrqa.icm
Filesize
41KB

MD5
285afea69a2e1f8aae59a0c748aa2bd8

SHA1
8a087a497757b6beccf483687fb0d1edec45d3fa

SHA256
86aeb596d5962ca2389b1dcc252d0ae7b869b9e6ec319e76a387b0bb16baa910

SHA512
2ef2acb9b6377e85e2cf73db99555c91456ecd29dc842dc75f414ff2fbad6667c2c8d0af38a0ffd7a23c7c6a0bb28889671eeb42f61777a0dea85cbfe2cf4404

Download Submit
C:\Users\Admin\AppData\Roaming\5_29\tvsgb.tls
Filesize
163.3MB

MD5
5ad0013bd9927682146d60065da2cc2b

SHA1
a3954227b0b6e7d9ca4a8107219eb01b81e5697e

SHA256
ee9872a43ecb872238e1bcca27df64b90071816f121d1f1685beec0e01cd5c39

SHA512
f931e9cd85481537f2ca25b7aa4ec435a81a9d98beff46b16e2408a84caf2aeeca4cfab1d6b0bd3fdb97a7cbc14186c3afee9935d66915c27a1b26b1739e0ad5

Download Submit
C:\Users\Admin\AppData\Roaming\5_29\xaguexgkmu.xvk
Filesize
370KB

MD5
56f43e5edcbdfcf4a7e9b8c09c0d2ba2

SHA1
1d47312b6eacbf63b04f83a9b4cd2dad238ae17a

SHA256
a26e71e81529a9cb7aa276618d014c5275cf3f7c356efb0e6b2308e30727a0fb

SHA512
8dd0f07a966aaf0c76fbdbed51184c2d765611128ce9b6e978229dc4954357c78cabef185e636e59827ffb7841913a0d543d60231e1f70aea2d62b0f917eba8a

Download Submit
memory/1216-135-0x0000000000000000-mapping.dmp

Download
memory/1600-151-0x0000000000000000-mapping.dmp

Download
memory/1604-152-0x0000000003030000-0x000000000337A000-memory.dmp

Filesize
3.3MB

Download
memory/1604-149-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1604-154-0x0000000002E80000-0x0000000002F13000-memory.dmp

Filesize
588KB

Download
memory/1604-153-0x0000000000F50000-0x0000000000F7F000-memory.dmp

Filesize
188KB

Download
memory/1604-150-0x0000000000F50000-0x0000000000F7F000-memory.dmp

Filesize
188KB

Download
memory/1604-148-0x0000000000000000-mapping.dmp

Download
memory/2596-147-0x00000000029E0000-0x0000000002A9D000-memory.dmp

Filesize
756KB

Download
memory/2596-155-0x00000000082D0000-0x000000000840F000-memory.dmp

Filesize
1.2MB

Download
memory/2596-156-0x00000000082D0000-0x000000000840F000-memory.dmp

Filesize
1.2MB

Download
memory/3428-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3428-146-0x0000000001690000-0x00000000016A4000-memory.dmp

Filesize
80KB

Download
memory/3428-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3428-141-0x0000000000000000-mapping.dmp

Download
memory/3428-145-0x0000000001B60000-0x0000000001EAA000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads